Xiaomi 18 Fold vs Redmi K90 Ultra comparison

Show Only Differences Highlight Differences	Xiaomi 18 Fold	Redmi K90 Ultra
key specs
Display (Primary)	7.58-inch	-
Cover Display	5.38-inch	-
Cover Resolution	1712x1168 pixels	-
Processor	deca-core	-
Front Camera	16-megapixel + 16-megapixel	20-megapixel
Rear Camera	200-megapixel + 50-megapixel + 50-megapixel	50-megapixel + 8-megapixel
RAM	12GB	12GB
Storage	256GB	256GB
Battery Capacity	6000mAh	8550mAh
OS	Android 17	Android 16
Resolution	1672x2364 pixels	1280x2772 pixels
Display	-	6.83-inch
general
Brand	Xiaomi	Xiaomi
Model	18 Fold	Redmi K90 Ultra
Release date	September 7, 2026	June 30, 2026
Launched in India	No	No
Form factor	Touchscreen	-
Dimensions (mm)	117.80 x 163.80 x 5.02	162.91 x 77.93 x 8.18
Weight (g)	219.00	227.00
IP rating	IP59	-
Battery capacity (mAh)	6000	8550
Fast charging	67W Turbo Charge	100W Fast Charging
Wireless Charging Type	50W	-
Colours	black, red, white	Space Silver, Shadow Black and Sky Blue
display
Refresh Rate	120 Hz	165 Hz
Screen size (inches)	7.58	6.83
Touchscreen	Yes	-
Resolution	1672x2364 pixels	1280x2772 pixels
Resolution Standard	-	1.5K
second display
Screen size (inches)	5.38	-
Touchscreen	Yes	-
Resolution	1712x1168 pixels	-
hardware
Processor	deca-core	-
RAM	12GB	12GB
Internal storage	256GB	256GB
Processor make	-	Snapdragon 8 Elite
camera
Rear camera	200-megapixel (f/1.7) + 50-megapixel (f/2.2) + 50-megapixel (f/2.8)	50-megapixel + 8-megapixel
No. of Rear Cameras	3	2
Rear flash	Yes	-
Front camera	16-megapixel (f/2.2) + 16-megapixel (f/2.2)	20-megapixel
No. of Front Cameras	1	1
Lens Type (Second Rear Camera)	Ultra Wide-Angle	-
Lens Type (Third Rear Camera)	Telephoto	-
software
Operating system	Android 17	Android 16
Skin	HyperOS 4	HyperOS 3
connectivity
Wi-Fi	Yes	-
GPS	Yes	Yes
Bluetooth	Yes, v 6.00	Yes
NFC	Yes	Yes
USB Type-C	Yes	Yes
Headphones	Type-C	-
Number of SIMs	2	-
Active 4G on both SIM cards	Yes	-
Wi-Fi 7	-	Yes
sensors
Fingerprint sensor	Yes	Yes
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	Yes	Yes

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