Redmi K90 Ultra vs Redmi A2 comparison

Show Only Differences Highlight Differences	Redmi K90 Ultra	Redmi A2
key specs
Display	6.83-inch	6.52-inch
Front Camera	20-megapixel	5-megapixel
Rear Camera	50-megapixel + 8-megapixel	8-megapixel
RAM	12GB	2GB, 4GB
Storage	256GB	32GB, 64GB
Battery Capacity	8550mAh	5,000mAh
OS	Android 16	Android 13
Resolution	1280x2772 pixels	1600x720 pixels
general
Brand	Xiaomi	Xiaomi
Model	Redmi K90 Ultra	Redmi A2
Release date	June 30, 2026	May 19, 2023
Launched in India	No	Yes
Dimensions (mm)	162.91 x 77.93 x 8.18	164.90 x 76.75 x 9.09
Weight (g)	227.00	192.00
Battery capacity (mAh)	8550	5,000
Fast charging	100W Fast Charging	-
Colours	Space Silver, Shadow Black and Sky Blue	Black, Light Green, and Light Blue
Form factor	-	Touchscreen
Wireless charging	-	No
display
Refresh Rate	165 Hz	-
Resolution Standard	1.5K	HD+
Screen size (inches)	6.83	6.52
Resolution	1280x2772 pixels	1600x720 pixels
Touchscreen	-	Yes
Aspect ratio	-	20:9
hardware
Processor make	Snapdragon 8 Elite	MediaTek Helio G36
RAM	12GB	2GB, 4GB
Internal storage	256GB	32GB, 64GB
Expandable storage	-	Yes
Expandable storage up to (GB)	-	1024
camera
Rear camera	50-megapixel + 8-megapixel	8-megapixel (f/f2.2)
No. of Rear Cameras	2	2
Front camera	20-megapixel	5-megapixel (f/f/2.2)
No. of Front Cameras	1	1
software
Operating system	Android 16	Android 13
Skin	HyperOS 3	-
connectivity
Wi-Fi 7	Yes	-
GPS	Yes	Yes
Bluetooth	Yes	Yes, v 5.00
NFC	Yes	-
USB Type-C	Yes	-
Wi-Fi	-	Yes
Micro-USB	-	Yes
Headphones	-	3.5mm
FM	-	Yes
Number of SIMs	-	2
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	-
Proximity sensor	Yes	-
Accelerometer	Yes	Yes
Ambient light sensor	Yes	-
Gyroscope	Yes	-

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