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Redmi Note 15 5G vs Samsung Galaxy A21 Simple comparison

 Sponsored Compare Redmi Note 15 5G
Redmi Note 15 5G
Compare Samsung Galaxy A21 Simple
Samsung Galaxy A21 Simple
ratings
Overall NDTV RatingRead Review-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.77-inch5.80-inch
Front Camera20-megapixel5-megapixel
Rear Camera108-megapixel + 8-megapixel13-megapixel
RAM8GB3GB
Storage128GB, 256GB64GB
Battery Capacity5520mAh3600mAh
OSAndroid 15Android 11
Resolution1080x2392 pixels720x1560 pixels
Processor-Samsung Exynos 7884B
general
BrandXiaomiSamsung
ModelRedmi Note 15 5GGalaxy A21 Simple
Release dateDecember 11, 2025August 27, 2021
Launched in IndiaNoNo
Form factorTouchscreenTouchscreen
Body typePolycarbonate-
Dimensions (mm)164.00 x 75.42 x 7.35150.00 x 71.00 x 8.40
Weight (g)178.00159.00
IP ratingIP65-
Battery capacity (mAh)55203600
Removable batteryNo-
Fast charging45W Fast Charging-
Wireless chargingNo-
ColoursBlack, Glacier Blue, and Mist PurpleBlack, White
display
Refresh Rate120 Hz-
Resolution StandardFHD+-
Screen size (inches)6.775.80
TouchscreenYesYes
Resolution1080x2392 pixels720x1560 pixels
Protection typeGorilla Glass 7i-
Aspect ratio16:9-
hardware
Processor makeQualcomm Snapdragon 6 Gen 3Samsung Exynos 7884B
RAM8GB3GB
Internal storage128GB, 256GB64GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)1TB1000
Processor-octa-core
camera
Rear camera108-megapixel + 8-megapixel13-megapixel
No. of Rear Cameras21
Front camera20-megapixel5-megapixel
No. of Front Cameras11
Rear autofocus-Yes
Rear flash-Yes
Pop-Up Camera-No
software
Operating systemAndroid 15Android 11
SkinHyperOS 2-
connectivity
Wi-FiYesYes
BluetoothYesYes, v 5.00
NFCYes-
USB Type-CYesYes
sensors
Proximity sensor-Yes
Accelerometer-Yes
Ambient light sensor-Yes

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