Redmi K90 Ultra vs Xiaomi Mi 4c comparison

Show Only Differences Highlight Differences	Redmi K90 Ultra	Xiaomi Mi 4c
key specs
Display	6.83-inch	5.00-inch
Front Camera	20-megapixel	5-megapixel
Rear Camera	50-megapixel + 8-megapixel	13-megapixel
RAM	12GB	2GB
Storage	256GB	16GB
Battery Capacity	8550mAh	3080mAh
OS	Android 16	Android 5.0
Resolution	1280x2772 pixels	1080x1920 pixels
Processor	-	Qualcomm Snapdragon 808
general
Brand	Xiaomi	Xiaomi
Model	Redmi K90 Ultra	Mi 4c
Release date	June 30, 2026	September 1, 2015
Launched in India	No	-
Dimensions (mm)	162.91 x 77.93 x 8.18	138.10 x 69.60 x 7.80
Weight (g)	227.00	132.00
Battery capacity (mAh)	8550	3080
Fast charging	100W Fast Charging	-
Colours	Space Silver, Shadow Black and Sky Blue	Black, Blue, Orange, Pink, White
Removable battery	-	No
display
Refresh Rate	165 Hz	-
Resolution Standard	1.5K	-
Screen size (inches)	6.83	5.00
Resolution	1280x2772 pixels	1080x1920 pixels
Touchscreen	-	Yes
Pixels per inch (PPI)	-	441
hardware
Processor make	Snapdragon 8 Elite	Qualcomm Snapdragon 808
RAM	12GB	2GB
Internal storage	256GB	16GB
Processor	-	1.8GHz hexa-core
Expandable storage	-	No
camera
Rear camera	50-megapixel + 8-megapixel	13-megapixel
No. of Rear Cameras	2	-
Front camera	20-megapixel	5-megapixel
No. of Front Cameras	1	-
Rear flash	-	LED
software
Operating system	Android 16	Android 5.0
Skin	HyperOS 3	MIUI 6
connectivity
Wi-Fi 7	Yes	-
GPS	Yes	Yes
Bluetooth	Yes	Yes
NFC	Yes	No
USB Type-C	Yes	-
Wi-Fi	-	Yes
Infrared	-	Yes
USB OTG	-	No
Headphones	-	3.5mm
FM	-	Yes
Number of SIMs	-	1
Wi-Fi Direct	-	No
Mobile High-Definition Link (MHL)	-	No
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	No
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	Yes	Yes
Barometer	-	No
Temperature sensor	-	No
sim 1
SIM Type	-	Micro-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes

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