The latest Samsung Galaxy J7 smartphone was announced in Europe in June, and in this review an option from the American telecom operator AT&T is being considered. Outwardly, it does not differ, but the internal components are slightly changed. J7 has many incarnations and all of them are intended for the middle price segment of the smartphone market. In this case, the device contains features of the Verizon Galaxy J7 V, which was released in March, and last year's Galaxy J7. The cost of the device is about $240 and it has a lot of competitors. You can call Moto G series smartphones, Chinese brands like Honor 6X, even iPhone SE, if you do not pay attention to the screen size.
Design
Samsung has proven itself well in designing the look of flagship devices like the Galaxy S8, so its capabilities are not in doubt. However, these innovations have not yet reached the mid-range devices of this company. Externally, the Galaxy J7 resembles the Galaxy Note 2 tablet, except for some sensors, and this device was released five years ago. Large metal samsung inscription and the silver earpiece mesh well with the non-illuminated silver buttons and the bezel around the Home button, which lacks a fingerprint reader. All this makes the smartphone outdated. appearance, reminiscent of the days of plastic Samsung devices. This is where the silver accents end, using a rubberized plastic coating around the corners and back.
Also on the back is a single horizontal metal strip about 12 mm wide, inside which is an 8 megapixel camera and one LED flash. They do not protrude beyond the body. On the right side is a metal speaker grill, also inside a metal strip. This unusual arrangement allows you not to cover the speaker with your hand when holding a smartphone. Below the right is a loud clicking power button, in this place it is easy to reach. On the other side, there is an equally loud volume control, although it is located a little higher and you have to drag your finger towards it when holding the device in one hand. The device weighs 159 g, which gives it a sense of solidity. Thinner smartphones with large screens tend to slip out of your hands, but here a thicker case with rounded corners provides an improved grip.
Screen
Samsung decided to use LCD instead of the usual AMOLED screens of its own production. It is able in most cases to produce rich and fairly accurate colors. The screen has a noticeable cool bluish tint, which is most often seen in white and purple colors.
Oddly enough, the screen resolution here is not even 1080p, but only 1280 x 720 pixels and a pixel density of 267 ppi. Despite this, the detail is at a good level. Enlarging an image in high-resolution photos does not result in grain or pixels. Meanwhile, there were such concerns from the TFT panel. The screen is very bright maximum value is 628 nits and it is enough to set the brightness to 25%. There is no ambient light sensor, and with it there is no automatic adjustment brightness. Instead, it offers a not-so-great outdoor mode that brightens the screen for 15 minutes, or permanently if the screen is left on.
Interface and functionality
Together with a smartphone samsung galaxy S8 was presented with a new interface of this manufacturer called Samsung Experience. The main goal of this interface is simplicity and now this simple interface has made its way to the Galaxy J7. There is no large-scale support for gestures and sensors flagship models, so the functionality is simpler. Users will get a lightweight interface with a stripped-down settings menu and meaningful search, device support, Samsung Safe Folder, and a more cohesive look and feel. You cannot enable up and down gestures to open the application list, as on the S8, which once again shows the simplified nature of this interface on this smartphone.
Samsung's proprietary apps are responsible for most of the functions, including text messaging, internet, and email. The quality here is at a good level, the messenger is simple and intuitive, like a web browser, apart from support for back and forth gestures, the email client has a convenient arrangement of elements. The main problem mail client is the lack of a linear view of notifications. For example, Gmail allows you to delete emails and reply to them through notifications, but Samsung only allows you to clear notifications or write a reply. The settings within the client do not match perfectly with the system settings. Option to synchronize SMS messages with account email is only in the application settings section, but not in system settings, as is the case with other synchronization options.
Processor and Memory
The device is powered by Samsung Exynos 7880 processor, it is an 8-core chip with clock frequency 1.6 GHz. The same processor was used in the Galaxy J7 2016 and the unlocked J7 2017. I would like to see a faster 1.9 GHz Exynos 7880 processor with UFS 2.0 storage, but ordinary buyers low-cost smartphones won't notice the difference. Samsung achieves good results even with an old processor. It is assisted by 2GB of RAM and 16GB of eMMC. There will be no rapid speeds, but no slowdowns either. Navigating the system and multitasking sometimes show slight pauses, but overall everything runs smoothly and responsively.
Like most mid-range phones, this one can run games, but not the best. In them you will see the true colors of the screen, which at 720p look just mediocre. Grains and pixels are visible, more than with other use cases. Many frames will be skipped and games will stutter.
Connection
Supported standards Bluetooth communications 4.1, Wi-Fi 802.11 a/b/g/n/ac/r, four frequency bands, which can work in most countries. There is no support, and with it the Samsung Pay payment system. If the South Korean company wants to make it ubiquitous, it should include this system even in cheap smartphones. In the meantime, you will have to buy a more expensive Galaxy A7 to get payments and a connector. Wireless charging is not there either, it is available only in flagships.
cameras
The rear camera has a resolution of 8 megapixels and a relatively large f / 1.9 aperture. Samsung is known for extensive functionality camera app and in Galaxy S8 it is one of the best. The Galaxy J7 lacks flagship options like selective focus, slow motion, or Hyperlapse. There are more basic options, such as night mode and Pro mode.
The photo quality is good. Color reproduction is quite accurate, detailing is sufficient in good light. There is a loss of orange in landscape shots, and there is not enough depth here. This can be attributed to the tendency to overexpose images. Using the HDR mode helps, but it will not return the orange color. Sometimes objects come out too sharp and detail is lost due to artifacts, but this happens infrequently.
HDR should be turned on in most cases to bring back details and colors. However, there is a limit here, especially in low light. In any case, HDR results in at least half a second longer exposure time, which should not be the case in order to obtain a correct exposure. Sometimes HDR increases the shooting time by a second.
In low light, the camera performs poorly. A relatively large aperture does little to increase detail, and in some situations increases the graininess of the image instead. Due to the tendency to overexposure, the level of detail in dark areas is increased where, with proper exposure, the lenses would not collect enough light. This does not improve image quality because overexposure blurs the image and erases small objects like leaves and branches. Enabling HDR, which doesn't happen automatically, solves this problem and brings another. Colors and separation between objects are restored, but sharpness is lost, causing the image to look drawn.
To consistently get high-quality photos, you need to use the professional shooting mode, especially in low light. This is Samsung's complete set with ISO settings, white balance, brightness, and more. Lowering the ISO does wonders for overexposure and sometimes helps boost detail. The problem does not disappear completely and will not help with weak light capture, but the result is better than in automatic mode.
I would like to see auto HDR and improvements to auto shooting so that you can simply point and shoot, which is what most users want.
The 5MP front camera offers a couple of useful features and delivers decent quality in good light. Beautify mode contains three sliders with Snapchat-style face filters. They're not cartoony like Snapchat, but they allow you to change skin tone, make your face thinner, make your eyes bigger, all on a scale of 0 to 8. low settings this allows you to get rid of skin imperfections, at the maximum you can become like an alien. Wide-angle selfies allow you to fit more people in the frame. You will need a strong hand to shoot or the photo will not turn out to be of high quality.
Video
The maximum video resolution is 1080p, and the quality and color reproduction are good. When moving, imperfections become noticeable. Image stabilization is completely absent and shaking is visible at the slightest uneven movement. Autofocus is also uneven, only focusing on a certain length and taking a while.
Call quality
This setting here is pretty good. HD Voice is supported, although even then there is a feeling of muffled muddy sound, which most will not even notice, unless they switch to this smartphone from a much higher quality one. The speakerphone is loud, but it also has the same little audio problem.
Offline work
There is nothing to complain about here. The 3300 mAh battery allows you to reach the second day of work with moderate use, especially if you lower the brightness. In tests with the screen on, the J7 lasted 12 and a half hours, which is impressive. Charging time is also quite long, 2 hours 22 minutes.
Conclusion
There is a temptation to classify this device as “for the elderly”, who are not chasing fashionable shiny flagships, who have enough solid devices for many years to come. The same price category and a little higher are tech-savvy people who see no reason to buy smartphones for 60 thousand rubles. As a result, the value of such models is constantly growing and will continue to grow. Many manufacturers, well-known and not so, offer their models at an average price.
If you don't care about screen size and want a cheap yet valuable Android smartphone, think again. iPhone SE has better call quality, faster and smoother operation, the best camera with 4K support, the best materials and a fingerprint scanner. $80 more than the $240 J7 is the 16GB iPhone 6s.
If you're loyal to Android and want a screen over 5 inches, options are also available, like the Moto G5 Plus. It has a better camera and stabilized 4K video recording, fast charging, a fingerprint scanner, a nicer screen, and a $230 price tag. Externally, the device is also more attractive, but this is a matter of taste.
Nokia 6 for $230 has a stylish metal body, 16 MP camera, fingerprint scanner and NFC. There is also Honor 6X from Huawei. It's one of the best mid-range smartphones with some flagship features like dual cameras, 3GB storage with a fast processor, a fingerprint scanner, solid performance and a $200-$250 price tag.
As a result, we can say that the choice of devices for $200-$300 is greater than ever.
The Samsung Galaxy J7 for AT&T is not a bad device. The redesigned interface is lightweight and features proprietary Samsung apps that are both useful and intuitive. When navigating and launching applications, there are occasional hesitation, but more often everything happens quickly and smoothly. The screen is quite clear and colorful, although its shortcomings strain the eyesight. The camera isn't the highest quality for the price, struggling with exposure, focus and detail, but it's far from the worst and does the job.
Some of the competitors mentioned above are more attractive to technology enthusiasts, there are advantages for more casual users, but there are also disadvantages. So, protection from at least splashes would not hurt. Also, no one would turn down more flash memory or a better camera. Screen imperfections are also visible to anyone with eyes.
If you like Samsung's approach to Android and don't want to spend more than $300, the J7 2017 is your only choice. On the market as a whole, this is not the best smartphone in terms of price and quality.
pros
- Bright vibrant screen
- The camera reproduces colors well in sufficient lighting.
- The processor provides enough speed
Minuses
- Outdated look
- Materials feel cheap
- The screen strains the eyes
- Poor camera performance in low light
- No fingerprint scanner, no splash protection, no 1080p screen resolution
Consider a budget smartphone from Samsung - Galaxy J7 (2017).
Good day, friends, let's talk today about the budget smartphone Samsung. There is a certain proportion of users among us who come to the store and buy Samsung smartphone, just because it's Samsung. However, even this company has a very wide choice. Any user will be able to choose a smartphone for their needs with virtually any budget. Do not forget that you have to pay a little for the brand. In a word, today we are considering the most budgetary, of all possible new products at the time of this writing (October 2017), a model from Samsung, with a large screen, by the way.
Let's start with the specifications:
- Housing materials Metal;
- operating room android system 7;
- Screen 5.5″ Super AMOLED, 1920 *1080, 401 PPI, 2.5D glass;
- Cameras 13 + 13 MP, video up to FHD quality;
- CPU (processor) Exynos 7870, 8 cores up to 1.6 GHz;
- Video processor Mali-T830 MP2;
- RAM (Random Access Memory) 3 GB;
- ROM (built-in memory) 16 GB (free approx. 10), MicroSD up to 256 GB;
- GSM / 3G / 4G communication;
- SIM cards 2 SIM + MicroSD;
- FM radio Yes;
- Data transmission Wi-Fi, Bluetooth, NFC;
- GPS/GLONASS/BDS Yes / Yes / Yes;
- Battery, mAh 3600;
- Real battery test Approximately 13 hours of video at maximum brightness;
- Dimensions, weight 152.5 x 74.8 x 8 mm, 181 grams;
- Features Dual SIM + MicroSD, Always on Display, NFC Samsung Pay;
Appearance.
I must say that the J7 came out quite nice. The body is completely made of metal, and the plastic inserts look so harmonious that there is not even a disgust from the fact that they immediately catch the eye on the body. The navigation buttons here are physical, like in the good old days. The home button has a built-in fingerprint scanner.
The smartphone is quite large, this should be taken into account when buying, because not every one of us can easily handle 5.5-inch smartphones. This model is one of those.
Note that there is no combined slot, which means that the memory can be expanded without losing the second additional SIM card. Good help for potential buyers.
By the way, buyers and the kit will please. Here, in addition to a smartphone, you can find a charger, a cable, fairly good headphones and a paper clip.
Now more detailed appearance. On the right side is the power button and speaker. Its location is quite specific, but in fact it is very advantageous in work.
On the other side are the volume buttons and trays, which we mentioned above.
The microUSB connector and headphone jack are located at the bottom. By the way, the sound in the headphones is very decent.
At the back you can see the camera with a flash, in front there is also a flash for the front camera.
This is how the device came out. It lies very well in the hand. We were also pleased with the assembly. In general, if the size does not bother you, then you can safely put the highest score for the appearance.
Cameras.
Let's move on to the cameras. There are two of them, both with flashes, both of 13 MP. Our hero can record video in fullHD quality. At the same time, the main camera shoots exactly at the level of a budget device, despite the large number of various shooting functions.
The front camera takes better quality pictures.
The original photos are located.
Things are not so good with video shooting, you can see an example below:
In general, the camera is budget, it is far from smartphones of the A series.
Screen.
It has a 5.5-inch full HD display. Standard, not otherwise The only difference from competitors is that the screen here is made using Super AMOLED technology. Also worth mentioning is the 2.5D rounded glass.
In settings you can choose color profile, or adjust the colors in the ratio in which you will be comfortable. The screen is not bad.
Shell.
The smartphone runs on Android 7. Samsung installs its own shell on their gadgets. It has become very comfortable and lighter in recent years. So, for example, you can zoom in on the text on the screen with two fingers, make a quick call or sms with a swipe on a contact, enable one-handed control mode, quickly launch the camera, enable multi-window mode, and much more.
The application menu is launched with a swipe from the bottom up. The interface itself is very pleasant to use.
Connection.
The device is also good in terms of communication. Not only does it support 2 SIM cards at once. He still feels great in navigator mode.
Also supports Samsung Pay, there is an NFC module.
And it has an FM radio under the hood.
There are no complaints about the state employees here, on the contrary, NFC is often not installed in more expensive models, but here it is. All the same, we have “A brand”.
Performance.
But here the public sector is not so good, otherwise more expensive devices from this manufacturer would have suffered. And the Galaxy J7 runs on its own Exynos 7870 processor (8 cores up to 1.6 GHz). Mali-T830 MP2 is harmoniously combined with it. RAM is enough, as much as 3 GB. But the built-in memory is about 10 GB free, although 16 GB is declared. Fortunately, it is possible to use a memory card up to 256 GB.
In games, J7 is not as good as we would like. For 2017, performance is not enough, even for a state employee. Performance tests show the following results:
To be honest, even apps run slower than other smartphones. If this state of affairs does not bother you, then you can safely buy this device, since performance is its weakest point when compared with competitors for the same money.
Autonomy.
Finally, let's talk about autonomy. Our device was able to play video on its large Amoled screen around 13 o'clock. This is an excellent indicator. If we note that there are built-in power saving modes, including critical ones, then there are no problems with autonomy at all. In general, a smartphone is enough for at least a day, or even more.
If you do not consider this gadget as a gaming device and do not expect much from it fast work, then this device will suit you completely, as it supports all the functions necessary for "life". Plus it's convenient to use. The brand is still worth paying extra for. It's up to you to decide whether the device is worth it or not.
Samsung Galaxy J7 (2017) you can have our good and reliable friends
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Use on health!
- autonomy,
- Build quality,
- Screen,
- Headphone sound,
- GPS and GLONASS reception
- NFC module
- Performance for 2017 (for games)
8.5 out of 10 is our score for the Samsung Galaxy J7.
Video review of Samsung Galaxy J7 (2017) see below:
, .
Starts releasing a new line of J-series smartphones. The first was the J1 model, in the middle of the year the J5 and J7 appeared. By the end of 2015, J2 went on sale.
Smartphones of this series belong to the middle class, the largest screen of the Samsung Galaxy J7.
This model outwardly almost does not differ from other gadgets of this line, except for the location and physical dimensions. The initial cost was 250-300 dollars.
At the end of March 2016, an improved version of the Galaxy J7 was announced. The certification agency TENAA has given approval for the sale of smartphones in China, the appearance in the markets of other countries is still unknown.
Contents of delivery
The smartphone is packed in a bright orange box. The package includes: a headset (not a vacuum one), a branded adapter, a USB cable, standard instructions and, in fact, the device itself.
Design
The design of the Galaxy J7 is rather ordinary - it is the most typical Samsung smartphone with rounded corners and a plastic case. The ends of the device are covered with chrome paint.Devices of this design have been released by Samsung for several years in a row, so the Galaxy J7 does not cause much enthusiasm. The model is presented in three colors: white, black and golden.
The body thickness of the device is relatively small - 7.9 mm, weight is 169 g, which is quite a lot for a smartphone of this kind.
There is a mechanical button under the screen, as well as 2 touch: "back" and "task manager". Above the screen are: speaker, proximity sensor, front camera and flash.
There is an inscription “Duos” at the bottom at the back, which indicates the presence of slots for two Sim-cards. At the top is the camera lens, LED flash, speaker.
On the left side there is one volume rocker, on the bottom there is a 3.5 mm headset jack, microUSB port and microphone.
On the right there is only a power button (it's also a lock key). The top end is empty.
Screen
The device is equipped with a 5.5-inch screen (it was originally planned to install a TFT-matrix). Resolution - 1280x720 pixels (267 ppi).For such a diagonal, the resolution is not very high, but the graininess is almost invisible. The screen has good deep blacks and wide viewing angles.
You can independently set the brightness level, which will be as comfortable as possible for the user. In order to get the most readable picture in bright light, the “Outdoor” mode was added to the settings.
In this case, the brightness of the backlight is switched on to a maximum of 500 cd / m2 (it should be borne in mind that the discharge in this mode increases sharply).
The creators of the device refused to choose different modes colors that would allow the user to customize the display of colors.
Camera
The gadget is positioned as there is a front LED flash - but this is just a marketing ploy, since the camera characteristics are quite ordinary (only 5 megapixels).The main camera is 13 megapixels, it is controlled by Samsung's proprietary application, which allows you to apply various effects and supports additional modes shooting.
The quality of the photo is at a fairly high level, the frames are sharp, saturated, but in poor lighting conditions, the pictures are worse. Video recording in FullHD.
Battery
The device is equipped with a Li-Ion battery (3000 mAh). When using the device only as a phone, the battery lasts two days, but if you fully use your smartphone, it lasts a day.Special power saving mode Ultra Power Saving Mode will extend the "life" of the gadget without recharging.
The images are displayed in gray color scheme, unnecessary and system tasks are deactivated.
Software
Samsung Galaxy J7 is one of the few budget smartphones that are built on the same software as the company's models.The gadget is equipped with a 64-bit Snapdragon 615 chip with 8 cores, of which four are Cortex-A53 1.4 GHz, and the rest are Cortex-A53 1.0 GHz. There is also an Adreno 405 video accelerator.
enough to run with good graphics and work with "heavy" applications. Its size is 1.5 GB.
As for - 16 GB, 11 GB is available to the user. The device supports storage expansion up to 128GB via microSD.
Works on Android 5.1 platform. (can be updated to newer versions). The interface of the device does not stand out among other models of this manufacturer thanks to the proprietary TouchWIZ shell.
Sound, player, radio
The sound frequency is at an average level, but the speaker of the smartphone is quite loud. To listen to music, it is recommended to download some application to improve the sound quality.It will not be possible to fully enjoy the music in the original headset, but if you purchase more quality headphones– you can achieve the ideal sound frequency.
Radio through an external speaker works only when a headset is connected.
Internet
Standard browsers are installed on the device: Android browser and Google Chrome. You can independently download any other one of your choice.The gadget supports 3G and 4G networks.
Conclusion
The Samsung Galaxy J7 is a mid-range selfie smartphone that has great specs. To disadvantages can be attributed:- inexpressive design;
- chrome paint peels off over time;
- small resolution for a 5.5-inch screen;
- regular headset;
- not too much good quality sound.
In addition, you can purchase an improved version of this gadget, released in 2016.
For a snack, a couple of video reviews:
Information about the make, model, and alternative names of a particular device, if any.
Design
Information about the dimensions and weight of the device, presented in different units of measurement. Used materials, suggested colors, certificates.
| Width Width information refers to the horizontal side of the device in its standard orientation during use. | 74.8 mm (millimeters) 7.48 cm (centimeters) 0.25ft 2.94in |
| Height Height information refers to the vertical side of the device in its standard orientation during use. | 152.5 mm (millimeters) 15.25 cm (centimeters) 0.5 ft 6 in |
| Thickness Information about the thickness of the device in different units measurements. | 8 mm (millimeters) 0.8 cm (centimeters) 0.03 ft 0.31in |
| Weight Information about the weight of the device in different units of measurement. | 181 g (grams) 0.4 lbs 6.38oz |
| Volume Approximate volume of the device, calculated based on dimensions provided by the manufacturer. Refers to devices with the shape of a rectangular parallelepiped. | 91.26 cm³ (cubic centimeters) 5.54 in³ (cubic inches) |
| Colors Information about the colors in which this device is offered for sale. | The black Blue Pink Golden |
| Housing materials The materials used to make the body of the device. | Metal |
| Certification Information about the standards to which this device is certified. | IP54 |
SIM card
The SIM card is used in mobile devices to store data that certifies the authenticity of mobile service subscribers.
Mobile networks
A mobile network is a radio system that allows multiple mobile devices to communicate with each other.
| GSM GSM (Global System for Mobile Communications) is designed to replace the analogue mobile network (1G). For this reason, GSM is often referred to as a 2G mobile network. It is enhanced by the addition of GPRS (General Packet Radio Services) and later EDGE (Enhanced Data rates for GSM Evolution) technologies. | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz |
| UMTS UMTS is short for Universal Mobile Telecommunications System. It is based on the GSM standard and belongs to 3G mobile networks. Developed by 3GPP and its biggest advantage is to provide more speed and spectral efficiency with W-CDMA technology. | UMTS 850 MHz UMTS 900 MHz UMTS 1900 MHz UMTS 2100 MHz |
| LTE LTE (Long Term Evolution) is defined as a technology fourth generation(4G). It is developed by 3GPP based on GSM/EDGE and UMTS/HSPA to increase the capacity and speed of wireless mobile networks. The subsequent development of technologies is called LTE Advanced. | LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 2300 MHz (B40) |
Mobile technologies and data rates
Communication between devices in mobile networks is carried out through technologies that provide different data rates.
Operating system
The operating system is the system software that manages and coordinates the operation of the hardware components in the device.
SoC (System on a Chip)
System on a chip (SoC) includes all the most important hardware components of a mobile device in one chip.
| SoC (System on a Chip) System on a chip (SoC) integrates various hardware components such as processor, graphics processor, memory, peripherals, interfaces, etc., as well as the software necessary for their operation. | Samsung Exynos 7 Octa 7870 |
| Technological process Information on technological process on which the chip is made. The value in nanometers measures half the distance between the elements in the processor. | 14 nm (nanometers) |
| Processor (CPU) The main function of the processor (CPU) of a mobile device is the interpretation and execution of instructions contained in software applications. | ARM Cortex-A53 |
| Processor bit depth The bit depth (bits) of a processor is determined by the size (in bits) of registers, address buses, and data buses. 64-bit processors have higher performance than 32-bit processors, which, in turn, are more productive than 16-bit processors. | 64 bit |
| Instruction Set Architecture Instructions are commands by which the software sets/controls the operation of the processor. Information about the instruction set (ISA) that the processor can execute. | ARMv8-A |
| Number of processor cores The processor core executes program instructions. There are processors with one, two or more cores. Having more cores increases performance by allowing multiple instructions to be executed in parallel. | 8 |
| Processor clock speed The clock speed of a processor describes its speed in terms of cycles per second. It is measured in megahertz (MHz) or gigahertz (GHz). | 1600 MHz (megahertz) |
| Graphics Processing Unit (GPU) Graphics Processing Unit (GPU) handles calculations for various 2D/3D graphic applications. IN mobile devices ah it is used most often by games, consumer interface, video applications, etc. | ARM Mali-T830 MP2 |
| Number of GPU cores Like the CPU, the GPU is made up of several working parts called cores. They handle the graphical calculations of different applications. | 2 |
| The amount of random access memory (RAM) Random access memory (RAM) is used by the operating system and all installed applications. Data stored in RAM is lost when the device is turned off or restarted. | 3 GB (gigabytes) |
| Type of random access memory (RAM) Information about the type of random access memory (RAM) used by the device. | LPDDR3 |
| Number of RAM channels Information about the number of RAM channels that are integrated into the SoC. More channels means higher data rates. | dual channel |
| RAM frequency The frequency of RAM determines its speed, more specifically, the speed of reading / writing data. | 933 MHz (megahertz) |
Built-in memory
Each mobile device has a built-in (non-removable) memory with a fixed amount.
Memory cards
Memory cards are used in mobile devices to increase the storage capacity for storing data.
Screen
The screen of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology One of the main characteristics of the screen is the technology by which it is made and on which the image quality of information directly depends. | Super AMOLED |
| Diagonal For mobile devices, the screen size is expressed in terms of its diagonal length, measured in inches. | 5.5in 139.7 mm (millimeters) 13.97 cm (centimeters) |
| Width Approximate Screen Width | 2.7in 68.49 mm (millimeters) 6.85 cm (centimeters) |
| Height Approximate Screen Height | 4.79in 121.76 mm (millimeters) 12.18 cm (centimeters) |
| Aspect Ratio The ratio of the dimensions of the long side of the screen to its short side | 1.778:1 16:9 |
| Permission Screen resolution indicates the number of pixels vertically and horizontally on the screen. Higher resolution means sharper image detail. | 1080 x 1920 pixels |
| Pixel Density Information about the number of pixels per centimeter or inch of the screen. Higher density allows information to be shown on the screen in clearer detail. | 401ppi (pixels per inch) 157ppm (pixels per centimeter) |
| Color depth Screen color depth reflects the total number of bits used for color components in a single pixel. Information about the maximum number of colors the screen can display. | 24 bit 16777216 flowers |
| Screen area Approximate percentage of screen space on the front of the device. | 73.34% (percentage) |
| Other characteristics Information about other functions and features of the screen. | capacitive Multitouch |
Sensors
Different sensors perform different quantitative measurements and convert physical indicators into signals that are recognized by the mobile device.
Main camera
The main camera of a mobile device is usually located on the back of the case and is used for taking photos and videos.
| Sensor Model Information about the manufacturer and model of the photo sensor used in the device's camera. | Sony IMX258 Exmor RS |
| Sensor type | CMOS (complementary metal-oxide semiconductor) |
| Sensor size Information about the size of the photosensor used in the device. Typically, cameras with a larger sensor and lower pixel density offer better image quality despite lower resolution. | 4.71 x 3.49 mm (millimeters) 0.23in |
| Pixel size The smaller pixel size of the photosensor allows more pixels to be used per unit area, thus increasing resolution. On the other hand, a smaller pixel size can have a negative impact on image quality at high light sensitivity (ISO) levels. | 1.133 µm (micrometers) 0.001133 mm (millimeters) |
| crop factor The crop factor is the ratio between the dimensions of a full-frame sensor (36 x 24mm, equivalent to a frame of standard 35mm film) and the dimensions of the device's photosensor. The number shown is the ratio of the diagonals of the full frame sensor (43.3 mm) and the photo sensor of the specific device. | 7.37 |
| Diaphragm | f/1.7 |
| Focal length | 3.71 mm (millimeters) 27.36 mm (millimeters) *(35 mm / full frame) |
| Flash type | LED |
| Image resolution One of the main characteristics of mobile device cameras is their resolution, which indicates the number of pixels in the horizontal and vertical direction of an image. | 4160 x 3120 pixels 12.98 MP (megapixels) |
| Video resolution Information about the maximum supported resolution for video recording by the device. | 1920 x 1080 pixels 2.07 MP (megapixels) |
Information about the maximum number of frames per second (fps) supported by the device when shooting video at the maximum resolution. Some of the main standard shooting and video playback speeds are 24p, 25p, 30p, 60p. | 30 fps (frames per second) |
| Characteristics Information about other software and hardware features related to the main camera and improving its functionality. | autofocus Burst shooting digital zoom geo tags panoramic shooting HDR shooting Touch focus Face recognition Adjusting the white balance ISO setting Exposure compensation Self-timer Scene Selection Mode |
Additional camera
Additional cameras are usually mounted above the screen of the device and are used mainly for video calls, gesture recognition, etc.
| Sensor type Digital cameras use photo sensors to take pictures. The sensor, as well as the optics, is one of the main factors in the quality of a camera in a mobile device. | ISOCELL |
| Diaphragm Aperture (f-number) is the size of the aperture opening that controls the amount of light reaching the photosensor. A lower f-number means the aperture is larger. | f/1.9 |
| Focal length Focal length is the distance in millimeters from the photosensor to the optical center of the lens. There is also an equivalent focal length that provides the same field of view with a full frame camera. | 3.34 mm (millimeters) |
| Flash type The most common types of flashes in mobile devices cameras are LED and xenon flashes. LED flashes give a softer light and, unlike brighter xenon flashes, are also used for video shooting. | LED |
| Image resolution Information about the maximum resolution of the secondary camera when shooting. In most cases, the resolution of the secondary camera is lower than that of the main camera. | 4160 x 3120 pixels 12.98 MP (megapixels) |
| Video resolution Information about the maximum resolution supported when shooting video with the optional camera. | 1920 x 1080 pixels 2.07 MP (megapixels) |
| Video - frame rate/frames per second. Information about the maximum number of frames per second (fps) supported by the optional camera when shooting video at the maximum resolution. | 30 fps (frames per second) |
Audio
Information about the type of speakers and audio technologies supported by the device.
Radio
The mobile device radio is a built-in FM receiver.
Location determination
Information about navigation and location technologies supported by the device.
WiFi
Wi-Fi is a technology that provides wireless communication for short distance data transmission between different devices.
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version There are several versions of Bluetooth, with each subsequent one improving communication speed, coverage, making it easier to discover and connect devices. Information about the Bluetooth version of the device. | 4.1 |
| Characteristics Bluetooth uses different profiles and protocols for faster data transfer, power savings, better device discovery, and more. Some of these profiles and protocols that the device supports are shown here. | A2DP (Advanced Audio Distribution Profile) AVRCP (Audio/Visual Remote Control Profile) EDR (Enhanced Data Rate) HDP (Health Device Profile) HFP (Hands Free Profile) HID (Human Interface Profile) MAP (Message Access Profile) OPP (Object Push Profile) PBAP/PAB (Phone Book Access Profile) SPP (Serial Port Protocol) |
USB
USB (Universal Serial Bus) is an industry standard that allows different electronic devices to communicate.
Headphone jack
This is an audio connector, which is also called an audio jack. The most widely used standard in mobile devices is the 3.5mm headphone jack.
Connecting devices
Information about other important connection technologies supported by the device.
Browser
A web browser is a software application for accessing and viewing information on the Internet.
Video file formats/codecs
Mobile devices support various video file formats and codecs, which store and encode/decode digital video data, respectively.
Battery
Mobile device batteries differ from each other in their capacity and technology. They provide the electrical charge they need to function.
| Capacity The capacity of a battery indicates the maximum charge it can store, measured in milliamp-hours. | 3600 mAh (milliamp-hours) |
| Type The type of battery is determined by its structure and, more specifically, by the chemicals used. There are different types of batteries, with lithium-ion and lithium-ion polymer batteries being the most commonly used in mobile devices. | Li-Ion (Li-Ion) |
| Talk time 2G Talk time in 2G is the period of time during which the battery is completely discharged during a continuous conversation in a 2G network. | 24 h (hours) 1440 min (minutes) 1 days |
| 2G standby time The 2G standby time is the amount of time it takes for the battery to fully discharge when the device is in stand-by mode and connected to a 2G network. | 470 h (hours) 28200 min (minutes) 19.6 days |
| 3G talk time Talk time in 3G is the period of time during which the battery is completely discharged during a continuous conversation in a 3G network. | 24 h (hours) 1440 min (minutes) 1 days |
| 3G standby time The 3G standby time is the amount of time it takes for the battery to fully discharge when the device is in stand-by mode and connected to a 3G network. | 470 h (hours) 28200 min (minutes) 19.6 days |
| Adapter output power Strength Information electric current(measured in amps) and electrical voltage (measured in volts) that the charger supplies (power output). Higher power output ensures faster battery charging. | 5 V (volts) / 1.55 A (amps) |
| Characteristics Information about some additional features of the device's battery. | Fixed |
Specific Absorption Rate (SAR)
SAR levels refer to the amount of electromagnetic radiation absorbed by the human body while using a mobile device.
| Head SAR (EU) The SAR level indicates the maximum amount of electromagnetic radiation that the human body is exposed to when holding a mobile device near the ear in a conversation position. In Europe, the maximum allowable SAR value for mobile devices is limited to 2 W/kg per 10 grams of human tissue. This standard has been established by CENELEC in accordance with IEC standards following the 1998 ICNIRP guidelines. | 0.567 W/kg (watt per kilogram) |
| Body SAR (EU) The SAR level indicates the maximum amount of electromagnetic radiation that the human body is exposed to when holding a mobile device at hip level. The maximum allowed SAR value for mobile devices in Europe is 2 W/kg per 10 grams of human tissue. This standard has been established by CENELEC following the 1998 ICNIRP guidelines and IEC standards. | 1.33 W/kg (watt per kilogram) |
Review of Samsung Galaxy J7 2016. The specialists of the Samsung group of companies do not have to sit idle. Preparing for the release of a new line of Galaxy C smartphones, the Koreans took the time to update the J-series and introduce the J7 2016 to the public in April 2016 in China. holds out. But the second is a strong middle peasant. Compared to the J7 of 2015, the updated "seven" received improved performance and an updated design.
Fast passage
Appearance
J7 sample 2016 is available in 3 color variations: White, Black, Gold, Rose Gold.
On the front panel, decorated around the perimeter with an aluminum frame and a strip of plastic polished to a shine, below, as always, there are three buttons: mechanical "Home" and touch " Latest Apps” and “Back” with backlight. The selfie camera eye and sensors are visible from above.
Alas, this model does not have an ambient light sensor, like the rest of the Galaxy J series devices, so there is no automatic brightness adjustment mode either. But on the other hand, there is an “Outdoor” mode, in which everything that happens on the screen is clearly distinguishable even on a sunny day.
The detachable back cover of J7 is made of high-quality plastic with brushed metal texture. In the upper part of the usual places are the main camera lens, flash and speaker. A removable battery, two microSIM card slots and a microSD slot are hidden under the cover, and there is an NFC antenna on its inside.
On the left side of the new "seven" there are volume buttons, on the right - the off / lock button, on the bottom - a microphone, a mini-jack headset jack and a microUSB port. There are no connectors or controls on the top end.
Screen
5.5" mineral glass protected display with matrix Super AMOLED has a resolution of 1280 × 720 pixels, which, by the way, could be more for a display with such a diagonal, and a density of 276 ppi. Multitouch supports up to 10 touches.
Video: Galaxy J7 (2016) screen test for scratches
The picture is bright, clear, the viewing angle is decent, the density of dots per inch is enough so that the picture does not look grainy.
cameras
Both cameras of the device have the same characteristics as the previous version of the J7. The main camera with its 13 megapixels and flash takes clear enough pictures and has the following features: geotagging, face detection, touch focus, panorama, HDR.
Video: Galaxy Jay 7 2016 camera review
The front camera has a standard resolution of 5 MP for its type and is also equipped with a flash, so you can take high-quality selfies even in low light conditions.
There is a function to call the camera by double-clicking on the "Home" button.
Battery
Capacity Li-ion battery is 3300 mAh, which should be enough for a couple of days of active use of the device. There is an extreme power saving mode that will help to significantly reduce power consumption when the battery is low.
When activated, only basic functions remain working, such as calls and sending / receiving SMS, and the color theme on the screen changes to black and white.
Memory
The J7 2016 has 16 GB of built-in memory (of which about 5 GB is occupied by the system), which is enough for installing several games and applications. If this is not enough for you, you can buy a microSD card - the device supports external drives this format up to 128 GB.
RAM "seven" has the same amount as the "five", namely - 2 GB. This is quite enough for toys that are average in terms of “gluttony”, as well as simultaneous work in the background of several applications without brakes and crashes.
Processor and system
The updated Galaxy J7 is equipped with an Exynos 7870 processor with 8 cores at a frequency of 1.6 GHz and a Mali T860 3D accelerator. The device is running Android 6.0.1 Marshmallow with the branded graphical shell TouchWiz UI.
In the main test, AnTuTu Benchmark J7 shows a result of about 44,000 points, which is quite good.
Video: smartphone review
Communications
The model supports LTE networks, is equipped with Wi-Fi modules 802.11 b/g/n, GPS with A-GPS support and Bluetooth version 4.1.
Important note
Finally, I would like to note that versions of the Galaxy J7 designed for different markets can differ markedly in terms of the amount of RAM, processors used, display resolution, and even OS (maybe Android 5.1.1 or 6.0.1 Marshmallow).
Therefore, when buying yourself an updated J7 of the 2016 model, pay attention to the index of a particular model and its characteristics.
