Oppo A91 vs Oppo A77 comparison

Compare Oppo A91
Compare Oppo A77
key specs
Display6.40-inch5.50-inch
Processorocta-coreMediaTek MT6750T
Front CameraYes16-megapixel
Rear Camera48-megapixel + 8-megapixel13-megapixel
RAM8GB4GB
Storage128GB64GB
Battery Capacity4000mAh3200mAh
OSAndroid 9Android 6.0
Resolution1080x2400 pixels1080x1920 pixels
general
BrandOppoOppo
ModelA91A77
Release date20th December 2019May 2017
Form factorTouchscreenTouchscreen
Battery capacity (mAh)40003200
Removable batteryNoNo
Fast chargingVOOC-
ColoursBlack, Blue, RedGold, Rose Gold
Weight (g)-153.00
display
Screen size (inches)6.405.50
TouchscreenYesYes
Resolution1080x2400 pixels1080x1920 pixels
Protection typeGorilla Glass-
hardware
Processorocta-core1.5GHz octa-core
RAM8GB4GB
Internal storage128GB64GB
Processor make-MediaTek MT6750T
Expandable storage-Yes
Expandable storage up to (GB)-128
camera
Rear camera48-megapixel + 8-megapixel13-megapixel
Rear autofocusYes-
Rear flashYesDual LED
Front cameraYes16-megapixel
Front flashNo-
software
Operating systemAndroid 9Android 6.0
SkinColorOSColorOS 3.0
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n-
GPSYesYes
BluetoothYesYes
Active 4G on both SIM cardsYes-
NFC-No
Infrared-No
USB OTG-No
Headphones-3.5mm
FM-No
Number of SIMs-2
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYesNo
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
Gyroscope-No
Barometer-No
Temperature sensor-No
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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