Redmi K90 vs Redmi A3 comparison

Show Only Differences Highlight Differences	Redmi K90	Redmi A3
key specs
Display	6.59-inch	6.71-inch
Processor	Snapdragon 8 Elite	-
Front Camera	20-megapixel	5-megapixel
Rear Camera	50-megapixel + 50-megapixel + 8-megapixel	8-megapixel
RAM	16GB	3GB, 4GB, 6GB
Storage	1TB	64GB, 128GB
Battery Capacity	7,100mAh	5000mAh
OS	Android 16	Android 13
Resolution	1,156x2,510 pixels	700x1600 pixels
general
Brand	Redmi	Redmi
Model	K90	A3
Release date	October 23, 2025	February 14, 2024
Launched in India	No	Yes
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	157.49 x 75.25 x 8.00	76.30 x 168.40 x 8.30
Weight (g)	206.00	193.00
IP rating	IP68	-
Battery capacity (mAh)	7,100	5000
Removable battery	No	-
Fast charging	100W Fast Charging	Proprietary
Colours	White, Black, Aqua Blue, and Light Purple	Midnight Black, Lake Blue, Olive Green
display
Refresh Rate	120 Hz	90 Hz
Screen size (inches)	6.59	6.71
Touchscreen	Yes	Yes
Resolution	1,156x2,510 pixels	700x1600 pixels
Resolution Standard	-	HD+
hardware
Processor	octa-core	-
Processor make	Snapdragon 8 Elite	MediaTek Helio G36
RAM	16GB	3GB, 4GB, 6GB
Internal storage	1TB	64GB, 128GB
Expandable storage	No	-
camera
Rear camera	50-megapixel (f/1.88) + 50-megapixel (f/2.2) + 8-megapixel (f/2.2)	8-megapixel
No. of Rear Cameras	3	2
Front camera	20-megapixel	5-megapixel
No. of Front Cameras	1	1
Pop-Up Camera	No	No
Front flash	Yes	-
software
Operating system	Android 16	Android 13
Skin	HyperOS 3	Go Edition
connectivity
Wi-Fi 7	Yes	-
GPS	Yes	Yes
Bluetooth	Yes, v 5.40	Yes
NFC	Yes	-
USB Type-C	Yes	Yes
Wi-Fi	-	Yes
Active 4G on both SIM cards	-	Yes
sensors
In-Display Fingerprint Sensor	Yes	-
Compass/ Magnetometer	Yes	-
Proximity sensor	Yes	-
Accelerometer	Yes	Yes
Ambient light sensor	Yes	-
Gyroscope	Yes	-
Fingerprint sensor	-	Yes

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