Redmi K90 Ultra vs Xiaomi Mi MIX comparison

Show Only Differences Highlight Differences	Redmi K90 Ultra	Xiaomi Mi MIX
key specs
Display	6.83-inch	6.40-inch
Front Camera	20-megapixel	5-megapixel
Rear Camera	50-megapixel + 8-megapixel	16-megapixel
RAM	12GB	4GB
Storage	256GB	128GB
Battery Capacity	8550mAh	4400mAh
OS	Android 16	Android 6.0
Resolution	1280x2772 pixels	1080x2040 pixels
Processor	-	Qualcomm Snapdragon 821
general
Brand	Xiaomi	Xiaomi
Model	Redmi K90 Ultra	Mi MIX
Release date	June 30, 2026	October 1, 2016
Launched in India	No	-
Dimensions (mm)	162.91 x 77.93 x 8.18	158.80 x 81.90 x 7.90
Weight (g)	227.00	209.00
Battery capacity (mAh)	8550	4400
Fast charging	100W Fast Charging	-
Colours	Space Silver, Shadow Black and Sky Blue	Black, Gold
Form factor	-	Touchscreen
Removable battery	-	No
display
Refresh Rate	165 Hz	-
Resolution Standard	1.5K	-
Screen size (inches)	6.83	6.40
Resolution	1280x2772 pixels	1080x2040 pixels
Touchscreen	-	Yes
Pixels per inch (PPI)	-	362
hardware
Processor make	Snapdragon 8 Elite	Qualcomm Snapdragon 821
RAM	12GB	4GB
Internal storage	256GB	128GB
Processor	-	quad-core
Expandable storage	-	No
camera
Rear camera	50-megapixel + 8-megapixel	16-megapixel
No. of Rear Cameras	2	-
Front camera	20-megapixel	5-megapixel
No. of Front Cameras	1	-
Rear flash	-	Dual LED
software
Operating system	Android 16	Android 6.0
Skin	HyperOS 3	MIUI 8
connectivity
Wi-Fi 7	Yes	-
GPS	Yes	Yes
Bluetooth	Yes	Yes, v 4.20
NFC	Yes	Yes
USB Type-C	Yes	-
Wi-Fi	-	Yes
Wi-Fi standards supported	-	802.11 a/b/g/n/ac
Infrared	-	Yes
USB OTG	-	Yes
Headphones	-	3.5mm
FM	-	Yes
Number of SIMs	-	2
Wi-Fi Direct	-	No
Mobile High-Definition Link (MHL)	-	No
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	Yes	Yes
Barometer	-	Yes
Temperature sensor	-	No
sim 1
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
sim 2
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes

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