Poco M8x 5G vs Vivo Y31 comparison

Compare Poco M8x 5G
Compare Vivo Y31
key specs
Display6.90-inch6.58-inch
ProcessorSnapdragon 4 Gen 5Qualcomm Snapdragon 662
Front Camera8-megapixel16-megapixel
Rear Camera50-megapixel + 2-megapixel48-megapixel + 2-megapixel + 2-megapixel
RAM4GB, 6GB6GB
Storage128GB128GB
Battery Capacity7900mAh5000mAh
OSAndroid 16Android 11
Resolution720x1600 pixels1080x2408 pixels
general
BrandPocoVivo
ModelM8x 5GY31
Release dateAugust 21, 2026January 20, 2021
AI EnabledYes-
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Body typeMetal-
Dimensions (mm)170.12 x 78.43 x 8.80163.86 x 75.32 x 8.38
Weight (g)232.00188.00
IP ratingIP64-
Battery capacity (mAh)79005000
Removable batteryNo-
Fast charging45W Fast ChargingProprietary
Wireless chargingNo-
ColoursBlack, Blue, and Leather GreenOcean Blue, Racing Black
display
Refresh Rate120 Hz-
Resolution StandardHD+-
Screen size (inches)6.906.58
TouchscreenYesYes
Resolution720x1600 pixels1080x2408 pixels
Protection typeGorilla Glass 7i-
Aspect ratio-20:9
hardware
Processorocta-coreocta-core
Processor makeSnapdragon 4 Gen 5Qualcomm Snapdragon 662
RAM4GB, 6GB6GB
Internal storage128GB128GB
camera
Rear camera50-megapixel + 2-megapixel48-megapixel (f/1.79) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)
No. of Rear Cameras2-
Rear flashYesYes
Front camera8-megapixel16-megapixel (f/2.0)
No. of Front Cameras1-
Pop-Up CameraNo-
Front autofocusNo-
Front flashNo-
Rear autofocus-Yes
software
Operating systemAndroid 16Android 11
SkinHypeFuntouch OS 11
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYesYes, v 5.00
USB Type-CYesYes
Number of SIMs22
USB OTG-Yes
FM-Yes
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSM + CDMAGSM
4G/ LTEYesYes
5GYes-
3G-Yes
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSM + CDMAGSM
4G/ LTEYesYes
5GYes-
3G-Yes
sensors
Fingerprint sensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes

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