Complete technical specifications, details, expert ratings and review of Samsung Galaxy J7 (2017) (Samsung Exynos 7870). Find out how your chosen phone stacks up against the competition and whether it's the one that best meets your expectations with the phone comparison feature.
|DESIGN AND DIMENSIONS Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|Height||152.4 mm||Better than 75 % of phones rated.|
|Width||74.7 mm||Better than 78 % of phones rated.|
|Depth||7.9 mm||Better than 87 % of phones rated.|
|Waterproof (Water-resistant)||Yes||Better than 87 % of phones rated.|
|Integrated Components||FM radio|
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
|SIM Card Type (Size)||Nano SIM|
|SIM Card Qty||Single-SIM|
Many users will also appreciate the waterproof design.Show more
|DISPLAY Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|Display Type||OLED display|
|Display Technology||Full HD Super AMOLED|
|Screen Size (Display Size)||5.5"||Better than 72 % of phones rated.|
|Screen Resolution (Display Resolution)||1920 x 1080 pixels||Better than 80 % of phones rated.|
|Display Format||Full HD|
|Pixel Density||401 ppi||Better than 50 % of phones rated.|
|Colour Depth||16.7 million colours||Better than 99 % of phones rated.|
The screen size reaches 5.5" inches. With a large display, phone offers a great experience for watching videos, playing games and reading. The best phones today are 6.5'' or more. They have the advantage of a large display area that allows you to see more content than with conventional display sizes. Owing to OLED technology, the display offers a true representation of colours, especially black. The resulting contrast is significantly higher and colours appear more vivid. OLED technology is now part of most smartphones, while LCD displays are becoming a thing of the past in mobile phones. OLED displays also have lower power consumption compared to LCD technology.
Display Resolution of Samsung Galaxy J7 (2017) (Samsung Exynos 7870) is 1920 x 1080 pixels. A higher display resolution is a prerequisite for a sharper image. The standard for mid-range phones today is a Full HD resolution of 1920 × 1080 px. Cheaper phones, which usually have a smaller diagonal, have an HD resolution of 1280 × 720 px. Smaller resolutions can only be found in older models. Best phones, on the other hand, have a 4K resolution of 3840 x 2160 px. Display´s pixel density is 401 ppi and represents another significant factor affecting image sharpness besides resolution. The higher the value, the sharper the image. Average value is currently about 350-400 ppi, which guarantees a fine and sufficiently sharp image. Finest modern phone displays reach 450 ppi and above.
|PROCESSOR Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|Processor Type (CPU)||Samsung Exynos 7870|
|Clock Speed||1.6 GHz||Better than 58 % of phones rated.|
|Processor Core Qty||8-core||Better than 99 % of phones rated.|
|Graphics System (GPU)||Mali T830 MP2|
Samsung Galaxy J7 (2017) (Samsung Exynos 7870) is equipped with Samsung Exynos 7870. The number of processor cores is 8. It is a number of cores that plays an important role in evaluating the performance of phone as it is responsible for computing operations. Smartphones already commonly have a core count of around 4 to 8. Multi-core processors can perform better and reduce the processing time of a request to a minimum, which is reflected in the responsiveness of the phone, e.g. in the speed of opening applications. The processor frequency indicates how many instructions phone can process in 1 second. The higher the frequency, the better the performance. Standard processor frequency range today is between 1.8 GHz and 2.8 GHz. Samsung Galaxy J7 (2017) (Samsung Exynos 7870) reaches the frequency of 1.6 GHz.
The processor also includes the graphics accelerator Mali T830 MP2.
|MEMORY Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|RAM||3 GB||Better than 69 % of phones rated.|
|Internal Memory Size (Storage Capacity)||16 GB||Better than 50 % of phones rated.|
|Supported Flash Memory Cards (Expandable Memory)||microSDHC, microSDXC - up to 256 GB|
The phone´s internal memory capacity is 16 GB. The size of the internal storage determines e.g., how many photos, songs, movies, or applications you can store on your phone. This memory capacity is ideal for those who have a few basic apps and a few dozen photos on their phone. If you don't expect to use your phone to play games or need to store high-resolution photos, this size should be sufficient. There is almost no probability you're likely to see this low capacity on new smartphones. The standard memory today is around 64 and 128 GB. The best phones have internal memory of 256 GB or more. Luckily, most smartphone manufacturers nowadays offer models with different memory sizes to suit every user.
An additional option to increase the storage capacity of this model is to insert a memory card.
RAM memory of the Samsung Galaxy J7 (2017) (Samsung Exynos 7870) is 3 GB. Most powerful phones currently have an operating memory of 12 GB or more, which is especially useful for demanding users such as gaming enthusiasts. Normally, phones nowadays have 6 to 8 GB of RAM, which means that the phone can easily handle normal operation and more demanding applications. Operating memory of less than 4 GB is found in lower-end phones or older models, and they are suitable for low-end users who don't use demanding applications and have the phone more for basic use.
|CAMERA Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|Number of Main Cameras||1|
|Sensor Resolution||13 Megapixel||Better than 80 % of phones rated.|
|Lens Aperture||F/1.9||Better than 58 % of phones rated.|
|Face Recognition (Face ID)||Face detection||Better than 79 % of phones rated.|
|Light Source||LED flash|
|Video Resolutions||1920 x 1080 (1080p) at 30 fps|
|Camera Features (Functions)||Geotagging|
|Number of Front Cameras||1|
|Sensor Resolution (Front)||13 Megapixel||Better than 81 % of phones rated.|
|Sensor Type (Front)||CMOS|
|Light Source (Front)||LED flash|
|Video Resolutions (Front)||1920 x 1080 (1080p)|
The rear camera of the Samsung Galaxy J7 (2017) (Samsung Exynos 7870) has only one lens. Single lens is more typical for older phones or lower-end phones with lower quality cameras. The rear cameras of modern phones nowadays are usually equipped with two, three and sometimes even five rear camera lenses. The resolution of the main lens is 13 Megapixel. Higher resolution does not necessarily mean super high quality photos. Furthermore, it depends on the pixel size but also on other important factors. The aperture of main lens reaches F/1.9 value. The best phones have a lens with an aperture of up to F/1.5, where more light can pass through sensor and photos will be of a high quality even in low light conditions. However, lenses with apertures around F/1.8 to F/2.2 are the most common. The lower the number after the slash, the better the photo quality. Some users will also appreciate facial recognition feature, which allows camera to recognise the face of person in frame and automatically focus on it.
The front camera of phone Samsung Galaxy J7 (2017) (Samsung Exynos 7870) has one lens. This number of lenses is standard on most smartphones nowadays. The resolution of front lens reaches 13 Megapixel. Again, it should be noted that resolution is only one of several other significant factors that affect resulting quality of a photo.
|BATTERY AND CHARGING Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|Battery Capacity (Battery Size)||3600 mAh||Better than 81 % of phones rated.|
|Battery Technology||Lithium Ion|
The battery size of Samsung Galaxy J7 (2017) (Samsung Exynos 7870) is 3600 mAh. Nevertheless, battery capacity is not the only factor that affects the phone's battery life. For example - the size of the display, the performance of the processor, the use of data functions and, of course, the intensity of use of phone in general all have a significant impact on battery life. Standard for most smartphones today is a battery capacity of around 4500 to 5000 mAH. Phones with this battery size usually guarantee a phone life of at least 1 day. Older or cheaper smartphone models can then reach battery capacities typically around 2500 mAH and below. With this capacity, you may find that if you use your phone heavily, you may need to recharge your phone during the day.Show more
|CELLULAR Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|Technology||WCDMA (UMTS) / GSM|
|Mobile Broadband Generation||4G||Better than 91 % of phones rated.|
|Operating System||Android 7.0 Nougat|
|Navigation||GPS, A-GPS, GLONASS|
Samsung Galaxy J7 (2017) (Samsung Exynos 7870) supports 4G. 5G connectivity, which is slowly replacing standard 4G connectivity, is still more the preserve of the latest phones. The operating system in this case is Android 7.0 Nougat.Show more
|COMMUNICATIONS Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|Data Transmission||GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE|
|2G Band||850 GSM, 900 GSM, 1800 GSM, 1900 GSM|
|Wireless Interface||IEEE 802.11a/b/g/n/ac, ANT+/ANT|
|NFC||Yes||Better than 68 % of phones rated.|
|Messaging Services||SMS, MMS|
Fans of modern technology will appreciate NFC function, which allows, among other things, contactless mobile phone payments, but also finds other uses in connectivity, such as unlocking the door or loading the menu in restaurant using the NFC tag. Basic connectivity standards also include Bluetooth 4.2, making it easy to communicate wirelessly with other devices such as headphones, tablets, speakers and smartwatches.Show more
|MEDIA Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|Supported Digital Audio Standards||WAV, WMA, MP3, FLAC, AAC +|
|Supported Digital Video Standards||MPEG-4, WMV, H.264|
|FEATURES Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|Phone Functions||Speakerphone, call timer, conference call, flight mode, vibrating alert|
|Sensors||Accelerometer, proximity sensor, digital compass, gyro sensor|
|Security Devices||Fingerprint reader|
|Additional Phone Features||Radio Data Service (RDS)|
|OTHERS Samsung Galaxy J7 (2017) (Samsung Exynos 7870)|
|Included Accessories||Power adapter|
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