Xiaomi Mi 9 vs Xiaomi Mi 4

Xiaomi Mi 9 vs Xiaomi Mi 4: Looking to upgrade your Xiaomi device? Read on to discover the key differences between the Xiaomi Mi 9 and Xiaomi Mi 4. Compare their specifications, features, and performance to make an informed decision on which smartphone suits your needs best.

Feature	Xiaomi Mi 9	Xiaomi Mi 4
Display	6.39-inch Super AMOLED	5.0-inch IPS LCD
Resolution	1080 x 2340 pixels	1080 x 1920 pixels
Processor	Qualcomm Snapdragon 855	Qualcomm Snapdragon 801
RAM	6/8 GB	3 GB
Storage	64/128 GB	16/64 GB
Main Camera	48 MP wide (f/1.8) 12 MP telephoto (f/2.2) 16 MP ultrawide (f/2.2)	13 MP (f/2.2)
Front Camera	20 MP (f/2.0)	8 MP (f/2.0)
Video Recording	4K@30/60fps 1080p@30/120/240fps	1080p@30fps
Battery Capacity	3300 mAh	3080 mAh
Fast Charging	Yes (27W)	No
Wireless Charging	Yes (20W)	No
Operating System	MIUI (based on Android)	MIUI (based on Android)
Dimensions	157.5 x 74.7 x 7.6 mm	139.2 x 68.5 x 8.9 mm
Weight	173 g	149 g
SIM Card	Dual SIM (Nano-SIM, dual stand-by)	Micro-SIM
Headphone Jack	No	Yes
Fingerprint Sensor	Under-display optical	Rear-mounted
Water Resistance	No	No