| Brand: | OPPO |
| Model: | A31 |
| Type: | Smartphone |
| Release Date: | 2020, February 13 |
| Size: | 6.5 inches, 102.0 cm2 (~82.4% screen-to-body ratio) |
| Resolution: | 720 x 1600 pixels, 20:9 ratio (~270 ppi density) |
| Technology: | IPS LCD, 480 nits (typ) |
| Protection: | Corning Gorilla Glass 3 |
| Main Features: | LED flash, HDR, panorama |
| Main Video: | 1080p@30fps |
| Selfie Specs: | 8 MP, f/2.0, (wide), 1/4.0", 1.12µm |
| Selfie Features: | HDR |
| Selfie Video: | 1080p@30fps |
| Capacity: | Li-Po 4230 mAh, non-removable |
| Type: | Li-Po |
| Chipset: | Mediatek MT6765V/CB Helio P35 (12nm) |
| Ram: | 4GB |
| Storage: | 64GB |
| Expandable: | microSDXC (dedicated slot) |
| Os Version: | 9.0 |
| Dimensions: | 163.9 x 75.5 x 8.3 mm (6.45 x 2.97 x 0.33 in) |
| Weight: | 180 g (6.35 oz) |
| Wifi: | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth: | 5.0, A2DP, LE |
| Nfc: | No |
| Usb: | microUSB 2.0, USB On-The-Go |
| Headphone Jack: | Yes |
| Network: | GSM / HSPA / LTE |
| Sensors: | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| Colors: | Fantasy White, Mystery Black, Lake Green |
