Oppo A91 vs Oppo A83 comparison

Compare Oppo A91
Compare Oppo A83
key specs
Display6.40-inch5.70-inch
Processorocta-coreMediaTek MT6737T
Front CameraUnspecified8-megapixel
Rear Camera48-megapixel + 8-megapixel13-megapixel
RAM8GB3GB
Storage128GB32GB
Battery Capacity4000mAh3180mAh
OSAndroid 9Android 7.1
Resolution1080x2400 pixels720x1440 pixels
general
BrandOppoOppo
ModelA91A83
Release dateDecember 20, 2019December 1, 2017
Form factorTouchscreenTouchscreen
Battery capacity (mAh)40003180
Removable batteryNo-
Fast chargingVOOC-
ColoursBlack, Blue, RedChampagne, Black
Dimensions (mm)-150.50 x 73.10 x 7.70
Weight (g)-143.00
display
Screen size (inches)6.405.70
TouchscreenYesYes
Resolution1080x2400 pixels720x1440 pixels
Protection typeGorilla Glass-
Aspect ratio-18:9
hardware
Processorocta-core2.5GHz octa-core
RAM8GB3GB
Internal storage128GB32GB
Processor make-MediaTek MT6737T
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-256
camera
Rear camera48-megapixel + 8-megapixel13-megapixel
Rear autofocusYes-
Rear flashYesLED
Front cameraUnspecified8-megapixel
Front flashNo-
software
Operating systemAndroid 9Android 7.1
SkinColorOSColorOS 3.2
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n802.11 a/b/g/n
GPSYesYes
BluetoothYesYes, v 4.20
Active 4G on both SIM cardsYes-
NFC-No
Infrared-No
USB OTG-Yes
Micro-USB-Yes
Headphones-3.5mm
FM-Yes
Number of SIMs-2
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYes-
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
Face unlock-Yes
ratings
Overall NDTV Rating-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
sim 1
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
sim 2
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes

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