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Oppo A57 vs Samsung Galaxy J7 Prime vs HTC Desire 830 comparison

 Compare Oppo A57
Oppo A57
Compare Samsung Galaxy J7 Prime
Samsung Galaxy J7 Prime
Compare HTC Desire 830
HTC Desire 830
ratings
Overall NDTV RatingRead ReviewRead Review-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display5.20-inch5.50-inch5.50-inch
ProcessorQualcomm Snapdragon 435Samsung Exynos 7 Octa 7870MediaTek Helio X10
Front Camera16-megapixel 8-megapixel 4-Ultrapixel
Rear Camera13-megapixel 13-megapixel 13-megapixel
RAM3GB3GB3GB
Storage32GB16GB32GB
Battery Capacity2900mAh3300mAh2800mAh
OSAndroid 6.0Android 6.0Android
Resolution720x1280 pixels1080x1920 pixels1080x1920 pixels
general
BrandOppoSamsungHTC
ModelA57Galaxy J7 PrimeDesire 830
Release dateNovember 1, 2016September 1, 2016May 1, 2016
Launched in IndiaYesYes-
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)149.10 x 72.90 x 7.65151.50 x 74.90 x 8.10157.50 x 78.90 x 7.79
Weight (g)147.00167.00-
Battery capacity (mAh)290033002800
Removable batteryNoNoNo
ColoursRose Gold, GoldGold, Black-
SAR value1.31--
display
Screen size (inches)5.205.505.50
TouchscreenYesYesYes
Resolution720x1280 pixels1080x1920 pixels1080x1920 pixels
Aspect ratio16:916:9-
Protection type-Gorilla Glass-
Pixels per inch (PPI)-401-
hardware
Processor1.4GHz octa-core1.6GHz octa-core1.5GHz octa-core
Processor makeQualcomm Snapdragon 435Samsung Exynos 7 Octa 7870MediaTek Helio X10 (MT6795)
RAM3GB3GB3GB
Internal storage32GB16GB32GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)256256128
camera
Rear camera13-megapixel (f/2.2)13-megapixel (f/1.9)13-megapixel
Rear autofocusPhase detection autofocusYes-
Rear flashLEDLEDYes
Front camera16-megapixel (f/2.0, 1.12-micron)8-megapixel (f/1.9)4-Ultrapixel
Front autofocusYes--
software
Operating systemAndroid 6.0Android 6.0Android
SkinColorOS 3.0--
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 b/g/n--
GPSYesYesNo
BluetoothYes, v 4.10Yes, v 4.10Yes
NFCNoNoNo
InfraredNoNoNo
USB OTGYesYesNo
Micro-USBYesYes-
Headphones3.5mm3.5mm3.5mm
FMYesYesYes
Number of SIMs221
Wi-Fi DirectNoNoNo
Mobile High-Definition Link (MHL)NoNoNo
sim 1
SIM TypeNano-SIMNano-SIM-
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesYes
sim 2
SIM TypeNano-SIMNano-SIM-
GSM/CDMAGSMGSM-
3GYesYes-
4G/ LTEYesYes-
sensors
Fingerprint sensorYesYes-
Compass/ MagnetometerYesNoNo
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYesNoYes
GyroscopeYesNoNo
BarometerNoNoNo
Temperature sensorNoNoNo

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