| Hardware and OS | Sugar C21 | |
| Operating system | Android 8.1 Oreo | |
| Processor | ARM Cortex-A53, 1800 MHz, Cores: 8 | |
| GPU | Qualcomm Adreno 506 | |
| RAM | 4 GB, 933 MHz | |
| Internal Storage | 64 GB | |
| Memory Card Slot | microSD, microSDHC, microSDXC | |
| User Interface | Yes | |
| Display | Sugar C21 | other phones |
| Type | IPS | |
| Size | 6.26 inches | |
| Resolution | 1080 x 2246 pixels | |
| Colors | 16 Millions Colors | |
| Pixel Density | 398 ppi | |
| Touchscreen | No | |
| Protection | 2.5D curved glass screen | |
| Features | Capacitive, Multi-touch | |
| Connectivity | Sugar C21 | other phones |
| 4G Network | Yes | |
| Wi-Fi | a, b, g, n, Wi-Fi Hotspot, Wi-Fi Direct | |
| GPS | GPS, A-GPS, BeiDou | |
| NFC | No | |
| USB | 2.0, Micro USB | |
| Speed | LTE 850 MHz LTE 900 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE 700 MHz (B28) | |
| SIM | Nano SIM | |
| Dual SIM | Nano-SIM, Nano-SIM / microSD | |
| Wireless Charging | No | |
| Camera | Sugar C21 | other phones |
| Main camera | 12.19 MP (megapixels) | |
| Features | Dual LED | |
| Image | 4032 x 3024 pixels | |
| Selfie camera | 7.99 MP (megapixels) | |
| Multimedia | Sugar C21 | other phones |
| 3.5 mm Jack | yes | |
| Design | Sugar C21 | other phones |
| Dimensions | 75.4 x 158.5 x 11.2 mm | |
| Waterproof | No | |
| Weight | 210 g | |
| Battery | Sugar C21 | other phones |
| Capacity | 6100 mAh, Li-Polymer | |
| Placement | Yes | |
| Other | Sugar C21 | other phones |
| Sensors | Proximity, Light, Accelerometer, Compass, Gyroscope, Fingerprint | |
