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Redmi Note 15 5G vs Vivo U3 comparison

 Sponsored Compare Redmi Note 15 5G
Redmi Note 15 5G
Compare Vivo U3
Vivo U3
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-inch6.53-inch
Front Camera20-megapixel16-megapixel
Rear Camera108-megapixel + 8-megapixel16-megapixel + 8-megapixel + 2-megapixel
RAM8GB4GB
Storage128GB, 256GB128GB
Battery Capacity5520mAh5000mAh
OSAndroid 15Android 9 Pie
Resolution1080x2392 pixels1080x2340 pixels
Processor-Qualcomm Snapdragon 675
general
BrandXiaomiVivo
ModelRedmi Note 15 5GU3
Release dateDecember 11, 2025October 21, 2019
Launched in IndiaNoNo
Form factorTouchscreenTouchscreen
Body typePolycarbonate-
Dimensions (mm)164.00 x 75.42 x 7.35162.15 x 76.47 x 8.89
Weight (g)178.00193.00
IP ratingIP65-
Battery capacity (mAh)55205000
Removable batteryNoNo
Fast charging45W Fast ChargingProprietary
Wireless chargingNoNo
ColoursBlack, Glacier Blue, and Mist PurpleSpar Blue, Agate Black, Onion Blue
display
Refresh Rate120 Hz-
Resolution StandardFHD+-
Screen size (inches)6.776.53
TouchscreenYesYes
Resolution1080x2392 pixels1080x2340 pixels
Protection typeGorilla Glass 7i-
Aspect ratio16:919.5:9
Pixels per inch (PPI)-394
hardware
Processor makeQualcomm Snapdragon 6 Gen 3Qualcomm Snapdragon 675
RAM8GB4GB
Internal storage128GB, 256GB128GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)1TB-
Processor-octa-core
camera
Rear camera108-megapixel + 8-megapixel16-megapixel (f/1.78) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4)
No. of Rear Cameras2-
Front camera20-megapixel16-megapixel (f/2.0)
No. of Front Cameras1-
Rear autofocus-Yes
Rear flash-Yes
software
Operating systemAndroid 15Android 9 Pie
SkinHyperOS 2Funtouch OS 9
connectivity
Wi-FiYesYes
BluetoothYesYes
NFCYes-
USB Type-CYes-
GPS-Yes
Micro-USB-Yes
Headphones-3.5mm
Number of SIMs-2
Active 4G on both SIM cards-Yes
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
sensors
Face unlock-Yes
Fingerprint sensor-Yes
Proximity sensor-Yes
Accelerometer-Yes
Ambient light sensor-Yes

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