Oppo A77s vs Vivo Y91i (32GB) comparison

Show Only Differences Highlight Differences	Oppo A77s (8GB RAM, 128GB)	Vivo Y91i (32GB)
key specs
Display	6.56-inch	6.22-inch
Front Camera	8-megapixel	5-megapixel
Rear Camera	50-megapixel + 2-megapixel	13-megapixel
RAM	8GB	2GB
Storage	128GB	32GB
Battery Capacity	5000mAh	4030mAh
OS	Android 12	Android 8.1
Resolution	1612x720 pixels	720x1520 pixels
Processor	-	MediaTek Helio P22
general
Brand	Oppo	Vivo
Model	A77s	Y91i
Release date	October 6, 2022	March 1, 2019
Launched in India	Yes	Yes
Dimensions (mm)	163.74 x 75.03 x 7.99	155.11 x 75.09 x 8.28
Weight (g)	187.00	163.50
Battery capacity (mAh)	5000	4030
Fast charging	Super VOOC	-
Colours	Sunset Orange, Starry Black	Black, Fusion Black, Ocean Blue
Form factor	-	Touchscreen
display
Refresh Rate	90 Hz	-
Resolution Standard	HD+	-
Screen size (inches)	6.56	6.22
Touchscreen	Yes	Yes
Resolution	1612x720 pixels	720x1520 pixels
Pixels per inch (PPI)	269	-
Aspect ratio	-	19:9
hardware
Processor make	Qualcomm Snapdragon 680	MediaTek Helio P22 (MT6762)
RAM	8GB	2GB
Internal storage	128GB	32GB
Expandable storage type	microSD	microSD
Processor	-	octa-core
Expandable storage	-	Yes
camera
Rear camera	50-megapixel (f/1.8) + 2-megapixel (f/2.4)	13-megapixel (f/2.2)
No. of Rear Cameras	2	-
Front camera	8-megapixel (f/2.0)	5-megapixel (f/1.8)
No. of Front Cameras	1	-
Rear autofocus	-	Yes
Rear flash	-	Yes
software
Operating system	Android 12	Android 8.1
Skin	ColorOS 12.1	Funtouch OS 4.5
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes, v 5.00	Yes, v 5.00
USB Type-C	Yes	-
Headphones	3.5mm	3.5mm
Active 4G on both SIM cards	Yes	-
USB OTG	-	Yes
Micro-USB	-	Yes
FM	-	Yes
Number of SIMs	-	2
sensors
Fingerprint sensor	Yes	No
Face unlock	-	Yes
Compass/ Magnetometer	-	Yes
Proximity sensor	-	Yes
Accelerometer	-	Yes
Ambient light sensor	-	Yes
Gyroscope	-	Yes
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