On this page we compare specs Oppo K21 Qualcomm SDM765 Snapdragon 765G (7 nm) with other phones , we compare external dimensions, compare screens and performance, the amount of RAM and memory for storing media data, battery capacity and characteristics of photo cameras, compare the presence of various sensors and functions.
| Hardware and OS | Oppo K21 | |
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| Operating system | Android v11 | |
| Processor | Qualcomm SDM765 Snapdragon 765G (7 nm) | |
| RAM | 8 GB | |
| Internal Storage | 128 GB | |
| Display | Oppo K21 | other phones |
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| Type | AMOLED | |
| Size | 6.4 inches | |
| Resolution | 1080 x 2400 Pixels | |
| Pixel Density | 411 ppi | |
| Touchscreen | Yes, Capacitive Touchscreen, Multi-touch | |
| Connectivity | Oppo K21 | other phones |
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| Network support | 5G , 4G , 3G, 2G | |
| WI-FI | Yes, Wi-Fi 802.11, b/g/n | |
| Gps | Yes, with A-GPS, Glonass | |
| Bluetooth | Yes, v5.1 | |
| NFC | Yes | |
| Dual SIM | Dual SIM, GSM GSM | |
| SIM size | SIM1: Nano, SIM2: Nano | |
| USB connectivity | Mass storage device, USB charging | |
| Camera | Oppo K21 | other phones |
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| Main camera | 48 MP 8 MP 2 MP 2 MP | |
| Front camera | 32 MP | |
| Front camera resolution | 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm | |
| Camera features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes, LED Flash | |
| Autofocus | Yes | |
| Video recording | Yes | |
| Multimedia | Oppo K21 | other phones |
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| Loudspeaker | Yes | |
| Design | Oppo K21 | other phones |
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| Height | 160.3 mm | |
| Width | 74.3 mm | |
| Thickness | 8 mm | |
| Weight | 180 grams | |
| Colours | Moonlight Black, Pearl White, Blue, Blue, Red | |
| Battery | Oppo K21 | other phones |
|---|
| Capacity | 4500 mAh | |
| Type | Li-Polymer | |
| Other | Oppo K21 | other phones |
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| Fingerprint sensor | Yes | |
| Fingerprint sensor position | On-Screen | |
| Other sensors | Accelerometer, Gyro, Proximity, Compass | |
