Oppo F31
The OPPO F31 series is a mid-range 5G smartphone series launched by OPPO in September 2025, including three models: F31 5G, F31 Pro 5G, and F31 Pro+5G. It features a 7000mAh large battery, 80W fast charging, and military grade protection.
Core configuration: The entire series is equipped with MediaTek Dimensity 6300 processor, with a maximum of 12GB RAM+256GB storage combination (Pro+models).
Battery life: 7000mAh battery+80W SUPERWOOC fast charging technology, can be charged to 75% in 30 minutes.
Protection level: Passed IP69/IP68/IP66 certification, supports 360 ° anti drop body design.
Display effect: 120Hz AMOLED screen, peak brightness of 1600 nits (Pro+model)
Its main parameters are as follows:
| Technology | GSM / HSPA / LTE / 5G |
| Announced | 2025, September 17 |
| Status | Available. Released 2025, September 27 |
| Dimensions | 158.2 x 75 x 8 mm (6.23 x 2.95 x 0.31 in) |
| Weight | 185 g (6.53 oz) |
| SIM | Nano-SIM + Nano-SIM |
| 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 | |
| Type | AMOLED, 1B colors, 120Hz, 600 nits (typ), 1400 nits (HBM) |
| Size | 6.57 inches, 105.0 cm2 (~88.5% screen-to-body ratio) |
| Resolution | 1080 x 2372 pixels (~397 ppi density) |
| Protection | AGC DT-Star D+ |
| OS | Android 15, ColorOS 15 |
| Chipset | Mediatek Dimensity 6300 (6 nm) |
| CPU | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) |
| GPU | Mali-G57 MC2 |
| Card slot | microSDXC |
| Internal | 128GB 8GB RAM, 256GB 8GB RAM |
| UFS 2.2 | |
| Dual | 50 MP, f/1.8, (wide), PDAF |
| 2 MP, f/2.4, (depth) | |
| Features | LED flash, HDR, panorama |
| Video | 1080p@30/60/120fps |
| Single | 16 MP, f/2.4, (wide) |
| Features | Panorama |
| Video | 1080p@30fps |
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm jack | No |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| Bluetooth | 5.4, A2DP, LE, aptX HD |
| Positioning | GPS, GALILEO, GLONASS, BDS, QZSS |
| NFC | No |
| Radio | Unspecified |
| USB | USB Type-C 2.0, OTG |
| Sensors | Fingerprint (under display, optical), accelerometer, proximity, compass |
| Type | Si/C Li-Ion 7000 mAh |
| Charging | 80W wired, 33W PPS, 13.5W PD |
| Reverse wired charging | |
| Colors | Midnight Blue, Bloom Red, Cloud Green |
| Models | CPH2781 |
| SAR | 1.18 W/kg (head) 0.81 W/kg (body) |