Product
Oppo A94
Oppo A94
Vivo Y31 (2015)
Vivo Y31 (2015)
Battery
Charging 30W wired -
Type Li-Po 4310 mAh 2100 mAh, removable
Body
Dimensions 160.1 x 73.2 x 7.8 mm (6.30 x 2.88 x 0.31 in) 137.2 x 68.8 x 8.4 mm (5.40 x 2.71 x 0.33 in)
SIM Nano-SIM + Nano-SIM Dual SIM
Weight 172 g (6.07 oz) 137 g (4.83 oz)
Comms
Bluetooth 5.1, A2DP, LE, aptX HD 4.0, A2DP
NFC No No
Positioning GPS, GLONASS, GALILEO, BDS, QZSS GPS
Radio Unspecified FM radio
USB USB Type-C 2.0, OTG microUSB 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 b/g/n, hotspot
Display
Resolution 1080 x 2400 pixels, 20:9 ratio (~409 ppi density) 720 x 1280 pixels, 16:9 ratio (~312 ppi density)
Size 6.43 inches, 99.8 cm2 (~85.2% screen-to-body ratio) 4.7 inches, 60.9 cm2 (~64.5% screen-to-body ratio)
Type AMOLED, 430 nits (typ), 800 nits (peak) IPS LCD
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Accelerometer, proximity, compass
Launch
Announced 2021, March 05 2015, September. Released 2015, October
Status Available. Released 2021, March 11 Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, HDR
Quad 48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 16mm, 119˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) -
Single - 8 MP
Video 4K@30fps, 1080p@30/120fps; gyro-EIS 720p@30fps
Memory
Card slot microSDXC microSDXC (dedicated slot)
Internal 128GB 8GB RAM 8GB 1GB RAM
Misc
Colors Fluid Black, Fantastic Purple White, Black
Models CPH2203 Y31L, Y31
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 -
Speed HSPA, LTE HSPA
Technology GSM / HSPA / LTE GSM / HSPA
Platform
Chipset Mediatek MT6779V Helio P95 (12 nm) Mediatek MT6580 (28 nm)
CPU Octa-core (2x2.2 GHz Cortex-A75 & 6x2.0 GHz Cortex-A55) Quad-core 1.3 GHz Cortex-A7
GPU PowerVR GM9446 Mali-400MP2
OS Android 11, ColorOS 11.1 Android 5.1 (Lollipop), Funtouch 2.1
Selfie camera
Features HDR -
Single 32 MP, f/2.4, 24mm (wide) 2 MP
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes