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Oppo A71 (2018) vs Samsung Galaxy J7 vs HTC Desire 820 comparison

 Compare Oppo A71 (2018)
Oppo A71 (2018)
Compare Samsung Galaxy J7
Samsung Galaxy J7
Compare HTC Desire 820s
HTC Desire 820s
key specs
Display5.20-inch5.50-inch5.50-inch
ProcessorQualcomm Snapdragon 450Samsung Exynos 7 Octa 7580MediaTek MT6752
Front Camera5-megapixel5-megapixel 8-megapixel
Rear Camera13-megapixel 13-megapixel 13-megapixel
RAM3GB1.5GB2GB
Storage16GB16GB16GB
Battery Capacity3000mAh3000mAh2600mAh
OSAndroid 7.1Android 5.1Android 4.4.4
Resolution720x1280 pixels720x1280 pixels720x1280 pixels
general
BrandOppoSamsungHTC
ModelA71 (2018)Galaxy J7Desire 820s
Release dateJanuary 1, 2018June 1, 2015March 1, 2015
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)148.10 x 73.80 x 7.60152.40 x 78.60 x 7.50157.70 x 78.74 x 7.74
Weight (g)137.00171.00155.00
Battery capacity (mAh)300030002600
ColoursBlack, GoldBlack, White, GoldWhite, Grey
Launched in India-Yes-
Body type-Plastic-
Removable battery-YesNo
display
Screen size (inches)5.205.505.50
TouchscreenYesYesYes
Resolution720x1280 pixels720x1280 pixels720x1280 pixels
Aspect ratio16:916:9-
Pixels per inch (PPI)--267
hardware
Processor1.8GHz octa-core1.5GHz octa-core1.7GHz octa-core
Processor makeQualcomm Snapdragon 450Samsung Exynos 7 Octa 7580MediaTek MT6752
RAM3GB1.5GB2GB
Internal storage16GB16GB16GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)25612832
camera
Rear camera13-megapixel (f/2.2, 1.12-micron)13-megapixel (f/1.9)13-megapixel
Rear autofocusPhase detection autofocusYes-
Rear flashLEDLEDLED
Front camera5-megapixel5-megapixel (f/2.2)8-megapixel
Front flash-LED-
software
Operating systemAndroid 7.1Android 5.1Android 4.4.4
SkinColorOS 3.2TouchWiz UISense 6.0
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 b/g/n802.11 b/g/n802.11 b/g/n
BluetoothYes, v 4.20Yes, v 4.10Yes, v 4.00
USB OTGYesYesNo
Micro-USBYesYes-
Headphones3.5mm3.5mm3.5mm
FMYesYesYes
Number of SIMs222
GPS-YesYes
NFC-NoNo
Infrared-NoNo
Wi-Fi Direct-YesNo
Mobile High-Definition Link (MHL)-NoNo
sim 1
SIM TypeNano-SIMMicro-SIMNano-SIM
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesYes
sim 2
SIM TypeNano-SIMMicro-SIMNano-SIM
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesNoNo
sensors
Compass/ MagnetometerYesNoYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYesNoYes
Gyroscope-NoYes
Barometer-NoNo
Temperature sensor-NoNo
ratings
Overall NDTV Rating--Read Review
Design Rating--
Display Rating--
Software Rating--
Performance Rating--
Battery Life Rating--
Camera Rating--
Value for Money Rating--

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