| Hardware and OS vivo Y31 |
| Operating system: | Android 5.1 (Lollipop); Funtouch 2.1 |
| Processor: | Quad-core 1.3 GHz Cortex-A7 |
| Chipset: | Mediatek MT6580 (28 nm) |
| GPU: | Mali-400MP2 |
| Internal memory: | 8 GB, 1 GB RAM |
| External memory: | microSD, up to 256 GB (dedicated slot) |
| Display vivo Y31 |
| Type: | IPS LCD |
| Size: | 4.7" inc |
| Resolution: | 720 x 1280 px |
| Touchscreen: | capacitive touchscreen |
| Screen-to-Body Ratio: | 64.5% |
| Display area: | 60.9 cm2 |
| Display aspect ratio: | 16:9 (height:width) |
| Pixel Density: | 312 PPI |
| Colors: | 16M |
| Connectivity vivo Y31 |
| 2G Network: | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Wi-Fi: | Wi-Fi 802.11 b/g/n, hotspot |
| Network: | GSM / HSPA |
| SIM card: | Dual SIM |
| Bluetooth: | 4.0, A2DP |
| Edge: | Yes |
| GPRS: | Yes |
| GPS: | Yes, with A-GPS |
| Speed: | HSPA |
| USB: | microUSB 2.0 |
| Camera vivo Y31 |
| Main camera: | 8 MP,
Single |
| Specs: | 8 MP |
| Features: | LED flash, HDR |
| Video: | 720p@30fps |
| Selfie camera: | 2 MP,
Single |
| Specs: | 2 MP |
| Multimedia vivo Y31 |
| 3.5 mm Jack: | Yes |
| Radio: | FM radio |
| Design vivo Y31 |
| Colors: | White, Black |
| Dimensions: | 137.2 x 68.8 x 8.4 mm |
| Weight: | 137 g |
| Battery vivo Y31 |
| Battery capacity: | 2100 mAh, Removable Li-Po |
| Other vivo Y31 |
| Release date: | 2015, September |
| Sensors: | Accelerometer, proximity, compass |
