Oppo A9 vs Vivo Y91

Oppo A9 vs Vivo Y91: Looking to compare Oppo A9 and Vivo Y91? Read on to find out the key differences and similarities between these two popular smartphones.

Feature	Oppo A9	Vivo Y91
Display Size	6.5 inches	6.22 inches
Display Type	IPS LCD	IPS LCD
Resolution	1080 x 2340 pixels	720 x 1520 pixels
Processor	Mediatek MT6771V Helio P70	Qualcomm SDM439 Snapdragon 439
RAM	4 GB	2 GB
Internal Storage	128 GB	32 GB
Expandable Storage	Yes, up to 256 GB	Yes, up to 256 GB
Main Camera	16 MP (f/1.8) + 2 MP (f/2.4)	13 MP (f/2.2) + 2 MP (f/2.4)
Selfie Camera	16 MP (f/2.0)	8 MP (f/1.8)
Battery Capacity	5000 mAh	4030 mAh
Operating System	Android 9.0 (Pie), ColorOS 6.1	Android 8.1 (Oreo), Funtouch 4.5
Fast Charging	Yes	No
Fingerprint Sensor	Rear-mounted	Rear-mounted
Face Unlock	Yes	Yes
SIM Card Type	Dual SIM (Nano-SIM, dual stand-by)	Dual SIM (Nano-SIM, dual stand-by)
Weight	195 g	163.5 g
Dimensions	162 x 76.1 x 8.3 mm	155.1 x 75.1 x 8.3 mm