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Oppo A71 (2018) vs Oppo A83 vs Oppo A71 vs Oppo A57 comparison

 Compare Oppo A71 (2018)
Oppo A71 (2018)
Compare Oppo A83
Oppo A83
Compare Oppo A71
Oppo A71
Compare Oppo A57
Oppo A57
key specs
Display5.20-inch5.70-inch5.20-inch5.20-inch
ProcessorQualcomm Snapdragon 450MediaTek MT6737TMediaTek MT6750Qualcomm Snapdragon 435
Front Camera5-megapixel8-megapixel5-megapixel 16-megapixel
Rear Camera13-megapixel 13-megapixel13-megapixel 13-megapixel
RAM3GB3GB3GB3GB
Storage16GB32GB16GB32GB
Battery Capacity3000mAh3180mAh3000mAh2900mAh
OSAndroid 7.1Android 7.1Android 7.1Android 6.0
Resolution720x1280 pixels720x1440 pixels720x1280 pixels720x1280 pixels
general
BrandOppoOppoOppoOppo
ModelA71 (2018)A83A71A57
Release dateJanuary 1, 2018December 1, 2017September 1, 2017November 1, 2016
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)148.10 x 73.80 x 7.60150.50 x 73.10 x 7.70148.10 x 73.80 x 7.60149.10 x 72.90 x 7.65
Weight (g)137.00143.00137.00147.00
Battery capacity (mAh)3000318030002900
ColoursBlack, GoldChampagne, BlackGold, BlackRose Gold, Gold
Launched in India--YesYes
Removable battery--NoNo
SAR value---1.31
display
Screen size (inches)5.205.705.205.20
TouchscreenYesYesYesYes
Resolution720x1280 pixels720x1440 pixels720x1280 pixels720x1280 pixels
Aspect ratio16:918:916:916:9
Pixels per inch (PPI)--282-
hardware
Processor1.8GHz octa-core2.5GHz octa-coreocta-core (4x1.5GHz + 4x1GHz)1.4GHz octa-core
Processor makeQualcomm Snapdragon 450MediaTek MT6737TMediaTek MT6750Qualcomm Snapdragon 435
RAM3GB3GB3GB3GB
Internal storage16GB32GB16GB32GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)256256256256
camera
Rear camera13-megapixel (f/2.2, 1.12-micron)13-megapixel13-megapixel (f/2.2)13-megapixel (f/2.2)
Rear autofocusPhase detection autofocus-Phase detection autofocusPhase detection autofocus
Rear flashLEDLEDLEDLED
Front camera5-megapixel8-megapixel5-megapixel (f/2.4)16-megapixel (f/2.0, 1.12-micron)
Front autofocus---Yes
software
Operating systemAndroid 7.1Android 7.1Android 7.1Android 6.0
SkinColorOS 3.2ColorOS 3.2Color OSColorOS 3.0
connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supported802.11 b/g/n802.11 a/b/g/n802.11 b/g/n802.11 b/g/n
BluetoothYes, v 4.20Yes, v 4.20Yes, v 4.00Yes, v 4.10
USB OTGYesYesYesYes
Micro-USBYesYesYesYes
Headphones3.5mm3.5mm3.5mm3.5mm
FMYesYesYesYes
Number of SIMs2222
GPS-YesYesYes
NFC-NoNoNo
Infrared-NoNoNo
Wi-Fi Direct--NoNo
Mobile High-Definition Link (MHL)--NoNo
sim 1
SIM TypeNano-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sim 2
SIM TypeNano-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sensors
Compass/ MagnetometerYes-YesYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYesYes
Face unlock-Yes--
Gyroscope--NoYes
Barometer--NoNo
Temperature sensor--NoNo
Fingerprint sensor---Yes
ratings
Overall NDTV Rating-Read Review-Read Review
Design Rating--
Display Rating--
Software Rating--
Performance Rating--
Battery Life Rating--
Camera Rating--
Value for Money Rating--

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