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Redmi 15 5G vs Vivo U3x comparison

 Compare Redmi 15 5G
Redmi 15 5G
Compare Vivo U3x
Vivo U3x
key specs
Display6.90-inch6.35-inch
Front Camera8-megapixel 8-megapixel
Rear Camera50-megapixel 13-megapixel + 8-megapixel + 2-megapixel
RAM6GB, 8GB3GB
Storage128GB, 256GB32GB
Battery Capacity7000mAh5000mAh
OSAndroid 15Android 9 Pie
Resolution1080x2340 pixels720x1544 pixels
Processor-Qualcomm Snapdragon 665
general
BrandRedmiVivo
Model15 5GU3x
Release dateAugust 19, 2025September 24, 2019
AI EnabledYes-
Launched in IndiaYesNo
Form factorTouchscreenTouchscreen
Dimensions (mm)168.48 x 80.45 x 8.40159.43 x 76.77 x 8.92
Weight (g)217.00190.50
IP ratingIP64-
Battery capacity (mAh)70005000
Fast charging33W Fast ChargingProprietary
ColoursFrosted White, Midnight Black, Sandy PurpleDeep Lake Blue, Red Tea Red, Midnight Black
display
Refresh Rate144 Hz-
Resolution StandardFHD+-
Screen size (inches)6.906.35
TouchscreenYesYes
Resolution1080x2340 pixels720x1544 pixels
Pixels per inch (PPI)374-
Aspect ratio-19.5:9
hardware
Processor makeQualcomm Snapdragon 6s Gen 3Qualcomm Snapdragon 665
RAM6GB, 8GB3GB
Internal storage128GB, 256GB32GB
Processor-octa-core
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-256
Dedicated microSD slot-Yes
camera
Rear camera50-megapixel (f/1.75)13-megapixel (f/2.2) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4)
No. of Rear Cameras2-
Rear flashYesYes
Front camera8-megapixel (f/2.2)8-megapixel (f/1.8)
No. of Front Cameras1-
Rear autofocus-Yes
software
Operating systemAndroid 15Android 9 Pie
SkinHyperOS 2.0Funtouch OS 9.1
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYesYes, v 5.00
InfraredYes-
USB Type-CYes-
Number of SIMs22
Micro-USB-Yes
Headphones-3.5mm
FM-Yes
Active 4G on both SIM cards-Yes
sensors
Fingerprint sensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Face unlock-Yes
Ambient light sensor-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
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