Oppo A77 4G vs Oppo A91 comparison

Show Only Differences Highlight Differences	Oppo A77 4G	Oppo A91
key specs
Display	6.56-inch	6.40-inch
Front Camera	8-megapixel	Unspecified
Rear Camera	50-megapixel	48-megapixel + 8-megapixel
RAM	4GB	8GB
Storage	64GB	128GB
Battery Capacity	5000mAh	4000mAh
OS	Android 12	Android 9
Processor	-	octa-core
Resolution	-	1080x2400 pixels
general
Brand	Oppo	Oppo
Model	A77 4G	A91
Release date	August 1, 2022	December 20, 2019
Launched in India	Yes	-
Dimensions (mm)	163.74 x 75.03 x 7.99	-
Weight (g)	187.00	-
Battery capacity (mAh)	5000	4000
Fast charging	Super VOOC	VOOC
Colours	Sky Blue, Sunset Orange	Black, Blue, Red
Form factor	-	Touchscreen
Removable battery	-	No
display
Resolution Standard	HD+	-
Screen size (inches)	6.56	6.40
Touchscreen	Yes	Yes
Pixels per inch (PPI)	269	-
Resolution	-	1080x2400 pixels
Protection type	-	Gorilla Glass
hardware
RAM	4GB	8GB
Internal storage	64GB	128GB
Processor	-	octa-core
camera
Rear camera	50-megapixel	48-megapixel + 8-megapixel
No. of Rear Cameras	2	-
Front camera	8-megapixel	Unspecified
Rear autofocus	-	Yes
Rear flash	-	Yes
Front flash	-	No
software
Operating system	Android 12	Android 9
Skin	-	ColorOS
connectivity
Wi-Fi	Yes	Yes
Bluetooth	Yes	Yes
Wi-Fi standards supported	-	802.11 a/b/g/n
GPS	-	Yes
Active 4G on both SIM cards	-	Yes
sensors
Fingerprint sensor	Yes	Yes
Compass/ Magnetometer	-	Yes
Proximity sensor	-	Yes
Accelerometer	-	Yes
Ambient light sensor	-	Yes

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