| Hardware and OS OPPO F21s Pro 4G |
| Operating system: | Android v12 |
| Processor: | 2.4 GHz, Octa Core Processor |
| Chipset: | Qualcomm Snapdragon 680 |
| Cores: | 4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver |
| GPU: | Adreno 610 |
| Ram: | 8 GB |
| Storage: | 128 GB |
| Card Slot: | Yes, upto 512 GB |
| Display OPPO F21s Pro 4G |
| Size: | 6.43 inches, 1080 x 2400 pixels, 90 Hz |
| Type: | Color AMOLED Screen (16.7M) |
| Aspect Ratio: | 20:9 |
| Glass Type: | Corning Gorilla Glass |
| PPI: | ~409 PPI |
| Screen to Body Ratio: | ~ 90.8% |
| Touch: | Yes, with Multitouch |
| Features: | 180Hz touch Sampling Rate, 600 nits, 97% NTSC/93% DCI-P3 Gentle mode |
| Main Camera OPPO F21s Pro 4G |
| Camera: | Punch Hole 32 MP f/2.4 |
| Flash: | Yes, LED |
| Features: | Photo, Video, Night, PRO, PANO, Portrait, Extra HD, SLO-MO, TIME-LAPSE, Microlens, STICKER, and Text scanner |
| Video: | 1080p |
| Selfie camera OPPO F21s Pro 4G |
| Camera: | 64 MP f/1.7 (Wide Angle) 2 MP f/2.4 (Microscope) 2 MP f/2.4 (Mono) with autofocus |
| Video: | 1080p, 720p |
| Connectivity OPPO F21s Pro 4G |
| 3G Network: | Yes |
| 4G Network: | Yes |
| 5G Network: | No |
| Bluetooth: | Yes, v5.1 |
| EDGE: | Yes |
| GPRS: | Yes |
| GPS: | Built-in GPS, A-GPS, BeiDou, GLONASS, Galileo, QZSS |
| USB: | Yes, USB-C |
| USB Features: | USB on-the-go, USB Charging |
| VoLTE: | Yes, Dual Stand-By |
| Wifi: | Yes, with wifi-hotspot |
| Multimedia OPPO F21s Pro 4G |
| 3.5 mm Jack: | Yes |
| Battery OPPO F21s Pro 4G |
| Type: | Non-Removable Battery |
| Battery capacity: | 4500 mAh, Li-Po Battery |
| Fast Charging: | Yes, 33W Fast Charging |
| Design OPPO F21s Pro 4G |
| Dimensions: | 73.2 x 159.9 x 7.66 mm |
| Weight: | 182 g |
| Dual Sim: | Yes |
| Sim Type: | Dual Sim, GSM GSM |
| Sim Size: | Nano Nano SIM |
| Features OPPO F21s Pro 4G |
| Sensors: | Geomagnetic Sensor, Proximity Sensor, Optical Sensor, Accelerometer, Gravity Sensor, Gyroscope, Pedometer, Compass |
| Fingerprint Sensor: | Yes, In Display |
| Face Unlock: | Yes |