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Redmi K90 Ultra vs Xiaomi Redmi 6A comparison

 Compare Redmi K90 Ultra
Redmi K90 Ultra
Compare Xiaomi Redmi 6A
Xiaomi Redmi 6A
key specs
Display6.83-inch5.45-inch
Front Camera20-megapixel5-megapixel
Rear Camera50-megapixel + 8-megapixel13-megapixel
RAM12GB2GB
Storage256GB16GB
Battery Capacity8550mAh3000mAh
OSAndroid 16Android 8.1 Oreo
Resolution1280x2772 pixels720x1440 pixels
Processor-MediaTek Helio A22
general
BrandXiaomiXiaomi
ModelRedmi K90 UltraRedmi 6A
Release dateJune 30, 2026June 1, 2018
Launched in IndiaNoYes
Dimensions (mm)162.91 x 77.93 x 8.18147.50 x 71.50 x 8.30
Weight (g)227.00145.00
Battery capacity (mAh)85503000
Fast charging100W Fast Charging-
ColoursSpace Silver, Shadow Black and Sky BlueBlue, Gold, Rose Gold, Black
Form factor-Touchscreen
Body type-Plastic
Removable battery-No
Wireless charging-No
display
Refresh Rate165 Hz-
Resolution Standard1.5K-
Screen size (inches)6.835.45
Resolution1280x2772 pixels720x1440 pixels
Touchscreen-Yes
Aspect ratio-18:9
Pixels per inch (PPI)-295
hardware
Processor makeSnapdragon 8 EliteMediaTek Helio A22 (MT6761)
RAM12GB2GB
Internal storage256GB16GB
Processor-2GHz quad-core (4x2GHz)
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-256
Dedicated microSD slot-Yes
camera
Rear camera50-megapixel + 8-megapixel13-megapixel (f/2.2)
No. of Rear Cameras2-
Front camera20-megapixel5-megapixel
No. of Front Cameras1-
Rear autofocus-Phase detection autofocus
Rear flash-LED
Front flash-No
software
Operating systemAndroid 16Android 8.1 Oreo
SkinHyperOS 3MIUI 9.6
connectivity
Wi-Fi 7Yes-
GPSYesYes
BluetoothYesYes, v 4.20
NFCYesNo
USB Type-CYesNo
Wi-Fi-Yes
Wi-Fi standards supported-802.11 b/g/n
Infrared-No
USB OTG-Yes
Micro-USB-Yes
Headphones-3.5mm
FM-Yes
Number of SIMs-2
Active 4G on both SIM cards-Yes
sensors
Fingerprint sensorYesNo
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesNo
Face unlock-Yes
ratings
Overall NDTV Rating-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
sim 1
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
sim 2
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
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