| Hardware and OS | Oukitel C21 Pro | |
| Operating system | Android 11 Red Velvet Cake | |
| Processor | Octa-Core (4x Cortex A53 1.8 GHz 4x Cortex A53 1.5 GHz) | |
| Chipset | MediaTek Helio P22 (MT6762D) (22 nm) | |
| Internal memory | 4GB 64GB, 4GB · 64GB | |
| External memory | microSDXC (uses shared SIM slot) | |
| GPU | IMG PowerVR GE8320 | |
| Display | Oukitel C21 Pro | other phones |
| Type | LCD IPS | |
| Size | 6.39" inc | |
| Resolution | 720 x 1560 px | |
| Display colors | 16M | |
| Screen area | cm2 | |
| Screen format | 19.5:9 (height:width) | |
| Screen to body ratio | 82% | |
| PPI /points per inch/ | 269 PPI | |
| Screen protection | Scratch resistant | |
| Touchscreen | capacitive touchscreen | |
| Connectivity | Oukitel C21 Pro | other phones |
| Network | 2G / 3G / 4G / | |
| NFC | No | |
| Edge | Yes | |
| Bluetooth | Bluetooth 4.2, A2DP | |
| SIM card | Dual SIM, dual stand-by (Nano SIM Nano SIM) | |
| GPRS | Yes | |
| GPS | GPS, A-GPS, GLONASS, Beidou, Galileo | |
| Wi-Fi | 802.11a, 802.11b, 802.11g, 802.11n,Wi-Fi Hotspot ,Wi-Fi Direct ,Wi-Fi Display | |
| USB | Yes, USB Type C | |
| Camera | Oukitel C21 Pro | other phones |
| Rear camera, main | 12 MP, Triple | |
| Camera specs | 12 MP, ?/ 2.2, (wide), 1.40 µm
-2 MP, ?/ 2.4, (macro),
-0,3 MP, (depth) | |
| Functions | LED flash | |
| Video | 1080p video | |
| Front camera, selfie | 8 MP, Single | |
| Specifications | 8 MP, Unknow | |
| Multimedia | Oukitel C21 Pro | other phones |
| Headphone jack | No | |
| Radio | Yes | |
| Design | Oukitel C21 Pro | other phones |
| Dimensions (HxWxD) | 162.0 x75.0 x 9.0 mm | 6.38 x 2.95 x 0.35 in | |
| Weight | 192 g | 6.77 oz | |
| Colors | Black, Green, Purple-ish | |
| Body build | Plastic | |
| Battery | Oukitel C21 Pro | other phones |
| Battery | 4000 mAh, Li-Polymer, non-removable | |
| Other features | Oukitel C21 Pro | other phones |
| Sensors | Fingerprint (side-mounted), Proximity, Accelerometer , Infrared port | |
