Oppo A91 vs Xiaomi Redmi Note 9 4g

Oppo A91 vs Xiaomi Redmi Note 9 4g: Looking to compare Oppo A91 and Xiaomi Redmi Note 9 4g? Read on to find a concise summary of the key differences between these two popular smartphones.

Feature	Oppo A91	Xiaomi Redmi Note 9 4G
Display	6.4-inch AMOLED	6.53-inch IPS LCD
Resolution	1080 x 2400 pixels	1080 x 2340 pixels
Processor	Mediatek MT6771V Helio P70	Qualcomm Snapdragon 662
RAM	8 GB	4 GB
Storage	128 GB	64 GB
Main Camera	48 MP wide (f/1.8) 8 MP ultrawide (f/2.2) 2 MP macro (f/2.4) 2 MP depth (f/2.4)	48 MP wide (f/1.8) 8 MP ultrawide (f/2.2) 2 MP macro (f/2.4) 2 MP depth (f/2.4)
Front Camera	16 MP (f/2.0)	8 MP (f/2.0)
Battery Capacity	4000 mAh	6000 mAh
Fast Charging	VOOC 3.0 (20W)	18W
Operating System	ColorOS 6.1 (Android 9.0)	MIUI 12 (Android 10)
Biometric Security	In-display fingerprint sensor	Rear-mounted fingerprint sensor
Headphone Jack	Yes	Yes
MicroSD Support	Yes (Up to 256 GB)	Yes (Up to 512 GB)
Weight	172 g	198 g
Dimensions	160.2 x 73.3 x 7.9 mm	162 x 77.3 x 9.6 mm
Colors	Dark Blue, Red	Midnight Gray, Forest Green, Polar White