| Brand | Oppo |
| Type | Smart Phone |
| Model | Oppo F21 Pro |
| Connectivity | |
| Network | 2G, 3G, 4G |
| SIM | Dual Nano SIM |
| WLAN | Dual-band, Wi-Fi direct, Wi-Fi hotspot |
| Bluetooth | v5.0, A2DP, LE, aptX HD |
| GPS | A-GPS, GLONASS, GALILEO, BDS, QZSS |
| USB | v2.0 |
| USB Type-C | Yes |
| Body | |
| Style | Punch-hole |
| Material | Gorilla Glass 5 front, Fiberglass-Leather back |
| Dimensions | 159.9 x 73.2 x 7.5 millimeter |
| Weight | 175 grams |
| Display | |
| Size | 6.43 inches |
| Resolution | Full HD+ 1080 x 2400 pixels (409 ppi) |
| Technology | AMOLED Touchscreen |
| Protection | Corning Gorilla Glass 5 |
| Features | 90Hz refresh rate, 800 nits max. brightness |
| Back Camera | |
| Resolution | Triple 64+2+2 Megapixel |
| Features | PDAF, LED flash, f/1.7, 1/2.0″, 0.7µm, microscope, depth & more |
| Video Recording | Full HD (1080p), gyro-EIS |
| Front Camera | |
| Resolution | 32 Megapixel |
| Features | HDR, f/2.4, 1/2.74″, 0.8µm, Sony IMX709 sensor & more |
| Video Recording | Full HD (1080p), gyro-EIS |
| Battery | |
| Type and Capacity | Lithium-polymer 4500 mAh (non-removable) |
| Fast Charging | 33W Fast Charging |
| Reverse Charging | Yes |
| Performance | |
| Operating System | Android 11 (ColorOS 12.1) |
| Chipset | Qualcomm Snapdragon 680 4G (6 nm) |
| Processor | Octa core, up to 2.4 GHz |
| GPU | Adreno 610 |
| Storage | |
| RAM | 8 GB |
| ROM | 128 GB |
| MicroSD Slot | Dedicated slot |
| Sound | 3.5mm Jack |
| Features | Loudspeaker, Security, Fingerprint, Face Unlock, Notification Light |
| Sensors | Accelerometer, Gyroscope, Proximity, E-Compass |