Xiaomi Redmi Note 9 vs Vivo X21

Xiaomi Redmi Note 9 vs Vivo X21: Looking to compare Xiaomi Redmi Note 9 and Vivo X21? Read on to find out the key differences and similarities between these two popular smartphones.

Feature	Xiaomi Redmi Note 9	Vivo X21
Display Size	6.53 inches	6.28 inches
Display Type	IPS LCD	Super AMOLED
Resolution	1080 x 2340 pixels	1080 x 2280 pixels
Processor	MediaTek Helio G85	Qualcomm Snapdragon 660
RAM	3GB, 4GB, 6GB	6GB
Storage	64GB, 128GB	128GB
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)	12 MP wide (f/1.8) 5 MP depth (f/2.4)
Front Camera	13 MP wide (f/2.3)	12 MP wide (f/2.0)
Battery Capacity	5020 mAh	3200 mAh
Charging	18W fast charging	Fast charging
Operating System	Android 10, MIUI 11	Android 8.1, Funtouch OS 4.0
Biometric Authentication	Fingerprint (rear-mounted)	In-display fingerprint
Headphone Jack	Yes	No
MicroSD Slot	Yes (dedicated slot)	Yes (uses SIM 2 slot)
Dimensions	162.3 x 77.2 x 8.9 mm	154.5 x 74.8 x 7.4 mm
Weight	199 grams	156.2 grams
Colors	Forest Green, Midnight Grey, Polar White	Black, Aurora White, Ruby Red