Redmi K90 Ultra vs Xiaomi Mi Mix Fold comparison

Show Only Differences Highlight Differences	Redmi K90 Ultra	Xiaomi Mi Mix Fold
key specs
Display	6.83-inch	-
Front Camera	20-megapixel	20-megapixel
Rear Camera	50-megapixel + 8-megapixel	108-megapixel + 8-megapixel + 13-megapixel
RAM	12GB	12GB, 16GB
Storage	256GB	256GB, 512GB
Battery Capacity	8550mAh	5020mAh
OS	Android 16	Android 10
Resolution	1280x2772 pixels	-
Display (Primary)	-	8.01-inch
Processor	-	Qualcomm Snapdragon 888
general
Brand	Xiaomi	Xiaomi
Model	Redmi K90 Ultra	Mi Mix Fold
Release date	June 30, 2026	March 30, 2021
Launched in India	No	No
Dimensions (mm)	162.91 x 77.93 x 8.18	173.27 x 133.38 x 7.62
Weight (g)	227.00	317.00
Battery capacity (mAh)	8550	5020
Fast charging	100W Fast Charging	Proprietary
Colours	Space Silver, Shadow Black and Sky Blue	Black
Form factor	-	Foldable
display
Refresh Rate	165 Hz	-
Resolution Standard	1.5K	-
Screen size (inches)	6.83	8.01
Resolution	1280x2772 pixels	-
Touchscreen	-	Yes
hardware
Processor make	Snapdragon 8 Elite	Qualcomm Snapdragon 888
RAM	12GB	12GB, 16GB
Internal storage	256GB	256GB, 512GB
Processor	-	octa-core
camera
Rear camera	50-megapixel + 8-megapixel	108-megapixel + 8-megapixel + 13-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 16	Android 10
Skin	HyperOS 3	MIUI 12
connectivity
Wi-Fi 7	Yes	-
GPS	Yes	Yes
Bluetooth	Yes	Yes, v 5.20
NFC	Yes	-
USB Type-C	Yes	Yes
Wi-Fi	-	Yes
Wi-Fi standards supported	-	802.11 a/b/g/n/ac/ax
Number of SIMs	-	2
sensors
Fingerprint sensor	Yes	Yes
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	Yes	-
Face unlock	-	Yes
second display
Screen size (inches)	-	6.50
Touchscreen	-	Yes
Resolution	-	840x2520 pixels
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

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