Vivo Y31

Display6.68" 720 x 1608 pixels
ChipsetQualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)
Main camera50MP
Battery6500 mAh
Y31 product photo
6.2GoSolo score
ReviewMore Vivo

Network

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 2100
4G bands
1, 3, 5, 8, 28, 38, 40, 41
5G bands
1, 3, 5, 8, 28, 40, 77, 78 SA/NSA
Speed
HSPA, LTE, 5G

Launch

Announced
2025, September 15
Status
Available

Body

Dimensions
166.1 x 77 x 8.4 mm (6.54 x 3.03 x 0.33 in)
Weight
209 g (7.37 oz)
SIM
Nano-SIM + Nano-SIM
Durability
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions

Display

Type
IPS LCD, 120Hz, 1000 nits (HBM)
Size
6.68 inches, 107.4 cm2 (~84.0% screen-to-body ratio)
Resolution
720 x 1608 pixels, 20:9 ratio (~264 ppi density)
Protection
Guardian Glass (ion-strengthened)

Platform

OS
Android 15, Funtouch 15
Chipset
Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)
CPU
Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55)
GPU
Adreno 613

Memory

Card slot
microSDXC (uses shared SIM slot)
Internal
128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM, 512GB 6GB RAM
Type
eMMC 5.1

Main Camera

Modules
50 MP, f/1.8, (wide), PDAF Auxiliary lens
Features
Ring-LED flash, panorama
Video
1080p@30fps

Selfie Camera

Module
8 MP, f/2.0, (wide)
Features
1080p@30fps

Sound

Loudspeaker
Yes, with stereo speakers
3.5mm jack
No

Comms

WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
4.2, A2DP, LE
Positioning
GPS, GLONASS, GALILEO, BDS, QZSS
NFC
No
Radio
No
USB
USB Type-C 2.0, OTG

Features

Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass

Battery

Type
Li-Ion 6500 mAh
Charging
44W wired, 50% in 38 minReverse wired

Misc

Colors
Rose Red, Diamond Green
SAR
1.13 W/kg (head) 0.99 W/kg (body)
GoSolo Read / what it means7 takeaways
battery
6500mAh, roughly one day heavy useAt 6500mAh with a modest 720p screen, you can expect about 8 to 10 hours of screen-on time under typical mixed use; heavy video or gaming will drop it closer to 6 to 7 hours.
charging
44W wired, ~45 min to fullThe 44W charger reaches 50% in 38 minutes, so a full charge from empty takes roughly 50 to 60 minutes; slower than the 65W+ chargers now standard, but adequate for overnight or a lunch-break top-up.
display
120Hz IPS LCD, 1000 nits peak1000 nits (HBM) handles bright sunlight without washing out, and 120Hz refresh keeps scrolling smooth; 720p resolution at 264 ppi is sharp enough at arm's length but noticeably pixelated in close inspection or small text.
performance
Snapdragon 4 Gen 2, light tasks onlyThe Adreno 613 GPU and octa-core CPU handle everyday apps, web browsing, and social media fluidly, but demanding games or heavy multitasking will stutter; this is a phone for email, chat, and casual use, not gaming or video editing.
camera
50MP f/1.8 main, 8MP selfieThe 50MP sensor with f/1.8 aperture and autofocus captures daylight stills with detail and decent low-light performance, but 1080p@30fps video is baseline; the 8MP front camera is for basic video calls and selfies, not serious vlogging.
durability
IP68/IP69, MIL-STD-810H, Guardian GlassIP68/IP69 rating means it survives dust and 1.5m submersion for 30 minutes, high-pressure jets bounce off, and Guardian Glass (ion-strengthened) resists scratches; MIL-STD-810H compliance suggests ruggedness but does not guarantee survival of extreme abuse.
connectivity
5G ready, dual-SIM, Wi-Fi acThe Y31 connects to 5G (bands 1, 3, 5, 8, 28, 40, 77, 78 SA/NSA), dual Nano-SIM lets you use two numbers, and Wi-Fi 6 is absent; 5G coverage depends on your local network, but this phone has the radios to use it where available.

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