| Local Name | C21 |
| Technology | GSM / HSPA / LTE |
| 4G Bands | LTE |
| 3G Bands | HSDPA 850 / 900 / 2100 - International | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - LATAM, Brazil |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Announced | 2022, February 28 |
| Status | Available. Released 2022, May 03 |
| Dimensions | 169.9 x 77.9 x 8.8 mm (6.69 x 3.07 x 0.35 in) |
| Weight | 195 g (6.88 oz) |
| Build | Glass front, aluminum frame, plastic back |
| SIM | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) |
| Display Type | Li-Ion 3000 mAh, removable |
| Screen Size | 6.52 inches, 102.6 cm2 (~77.5% screen-to-body ratio) |
| Resolution | 720 x 1600 pixels, 20:9 ratio (~269 ppi density) |
| OS | Android 11 (Go edition) |
| Chipset | Unisoc SC9863A (28nm) |
| CPU | Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55) |
| GPU | IMG8322 |
| Card Slot | microSDXC (dedicated slot) |
| Internal Memory | 32GB 2GB RAM, 32GB 3GB RAM, 64GB 3GB RAM | eMMC 5.1 |
| Camera Features | LED flash |
| Video | 720p |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 b/g/n |
| Bluetooth | 4.2, A2DP |
| NFC | No |
| Radio | FM radio |
| USB | microUSB 2.0 |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity |
| Colors | Dark Blue, Warm Gray |
| SAR EU | 0.43 W/kg (head) 1.55 W/kg (body) |