Redmi K90 Max vs Xiaomi Mi Mix 4 comparison

Show Only Differences Highlight Differences	Redmi K90 Max	Xiaomi Mi Mix 4
key specs
Display	6.83-inch	6.67-inch
Front Camera	20-megapixel	20-megapixel
Rear Camera	50-megapixel + 8-megapixel	108-megapixel + 13-megapixel + 8-megapixel
RAM	12GB	8GB, 12GB
Storage	256GB	128GB, 256GB, 512GB
Battery Capacity	8550mAh	4500mAh
OS	Android	Android 11
Processor	-	Qualcomm Snapdragon 888+
Resolution	-	1080x2400 pixels
general
Brand	Xiaomi	Xiaomi
Model	Redmi K90 Max	Mi Mix 4
Release date	April 21, 2026	August 10, 2021
Launched in India	No	No
Dimensions (mm)	162.91 x 77.00 x 8.18	162.65 x 75.35 x 8.02
Weight (g)	227.00	225.00
Battery capacity (mAh)	8550	4500
Fast charging	100W Fast Charging	Proprietary
Colours	Space Silver, Shadow Black and Sky Blue	Ceramic Black, Ceramic White, Ceramic Gray
Form factor	-	Touchscreen
display
Refresh Rate	165 Hz	-
Resolution Standard	1.5K	-
Screen size (inches)	6.83	6.67
Touchscreen	-	Yes
Resolution	-	1080x2400 pixels
Protection type	-	Gorilla Glass
Aspect ratio	-	20:9
hardware
Processor make	MediaTek Dimensity 9500	Qualcomm Snapdragon 888+
RAM	12GB	8GB, 12GB
Internal storage	256GB	128GB, 256GB, 512GB
Processor	-	octa-core
camera
Rear camera	50-megapixel + 8-megapixel	108-megapixel (f/1.95) + 13-megapixel (f/2.2) + 8-megapixel
No. of Rear Cameras	2	3
Front camera	20-megapixel	20-megapixel
No. of Front Cameras	1	1
Rear autofocus	-	Yes
Rear flash	-	Yes
software
Operating system	Android	Android 11
Skin	HyperOS 3	MIUI 12.5
connectivity
Wi-Fi	-	Yes
Wi-Fi standards supported	-	802.11 a/b/g/n/ac/ax
GPS	-	Yes
Bluetooth	-	Yes, v 5.20
NFC	-	Yes
USB Type-C	-	Yes
Number of SIMs	-	2
sim 1
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
5G	-	Yes
sim 2
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
5G	-	Yes
sensors
In-Display Fingerprint Sensor	-	Yes
Proximity sensor	-	Yes
Accelerometer	-	Yes
Ambient light sensor	-	Yes
Gyroscope	-	Yes

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