Product
Vivo Y31
Vivo Y31
Vivo T4 Lite
Vivo T4 Lite
Battery
Charging 18W wired, 70% in 67 min 15W wired
Type 5000 mAh Li-Ion 6000 mAh
Body
Build - Glass front, plastic frame, plastic back
Dimensions 163.9 x 75.3 x 8.4 mm (6.45 x 2.96 x 0.33 in) 167.3 x 77 x 8.2 mm (6.59 x 3.03 x 0.32 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 188 g (6.63 oz) 202 g (7.13 oz)
  - IP64 dust tight and water resistant (water splashes) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Comms
Bluetooth 5.0, A2DP, LE 5.4, A2DP, LE
NFC No No
Positioning GPS, GLONASS, GALILEO, BDS GPS, GALILEO, GLONASS, BDS, QZSS
Radio FM radio FM radio
USB USB Type-C 2.0, OTG USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band
Display
Resolution 1080 x 2408 pixels, 20:9 ratio (~401 ppi density) 720 x 1600 pixels, 20:9 ratio (~260 ppi density)
Size 6.58 inches, 104.3 cm2 (~84.5% screen-to-body ratio) 6.74 inches, 109.7 cm2 (~85.1% screen-to-body ratio)
Type IPS LCD IPS LCD, 90Hz, 1000 nits (HBM)
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass Fingerprint (side-mounted), accelerometer, proximity, compass
Launch
Announced 2021, January 20 2025, June 24
Status Available. Released 2021, January 20 Available. Released 2025, July 02
Main Camera
Dual - 50 MP, f/1.8, (wide), PDAF 2 MP, f/2.4, (depth)
Features LED flash, HDR, panorama LED flash, panorama
Triple 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) -
Video 4K@30fps, 1080p@30fps, gyro-EIS 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM 128GB 4GB RAM, 128GB 6GB RAM, 256GB 8GB RAM
  - UFS 2.2 - 128/4, 256/8 eMMC5.1 - 128/6
Misc
Colors Racing Black, Ocean Blue Prism Blue, Titanium Gold
Models V2036, V2036_21 V2509
SAR - 0.91 W/kg (head)     0.88 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 1, 3, 5, 8, 28, 38, 40, 41
5G bands - 1, 3, 5, 8, 28, 38, 40, 77, 78 SA/NSA
Speed HSPA, LTE HSPA, LTE
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G
Platform
Chipset Qualcomm SM6115 Snapdragon 662 (11 nm) Mediatek Dimensity 6300 (6 nm)
CPU Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Adreno 610 Mali-G57 MC2
OS Android 11, Funtouch 11 Android 15, up to 2 major Android upgrades, Funtouch 15
Selfie camera
Features HDR -
Single 16 MP, f/2.0, (wide), 1/3.06" 1.0µm 5 MP, f/2.2, (wide)
Video 1080p@30fps Yes
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes, with stereo speakers