| Realme C21 | Motorola Moto G31 | |
| Specifications | ||
| Brand | Realme | Motorola |
| Model | - | - |
| Release Date | March 2021 | December 2021 |
| Operating System | Realme UI (Android 10) | Android 11 |
| Dimensions | ||
| Size | 165.2 x 76.4 x 8.9 mm 6.50 x 3.01 x 0.35 in |
161.9 x 73.9 x 8.6 mm 6.37 x 2.91 x 0.34 in |
| Weight | 190 g 6.70 oz |
181 g 6.38 oz |
| Screen | ||
| Size | 6.5 inches | 6.4 inches |
| Resolution | 720 x 1,600 pixels | 1,080 x 2,400 pixels |
| PPI | 270 | 411 |
| Features | - | OLED |
| Cameras | ||
| Rear | Triple camera 13 MP f/2.2 Wide 2 MP f/2.4 Macro 2 MP f/2.4 Depth |
Triple camera 48 MP f/1.8 Wide 8 MP f/2.2 Ultra Wide 2 MP f/2.4 Macro |
| Front | 5 MP f/2.2 Wide | 13 MP f/2.2 Wide |
| Storage | ||
| Memory | 3 GB 4 GB |
4 GB |
| Fixed | 32 GB 64 GB |
64 GB 128 GB |
| Removable | microSDXC | microSDXC |
| Processor | ||
| Chip | MediaTek Helio G35 Octa-core processor 12 nm |
MediaTek Helio G85 Octa-core processor 12 nm |
| CPU | 4x 2.30 GHz Cortex-A53 4x 1.80 GHz Cortex-A53 |
2x 2.00 GHz Cortex-A75 6x 1.80 GHz Cortex-A55 |
| GPU | PowerVR GE8320 | Mali-G52 MC2 |
| Battery | ||
| Capacity | 5,000 mAh | 5,000 mAh |
| Features | - | - |
| Removable | ||
| Connectivity | ||
| 5G | ||
| NFC | ||
| 3.5 mm Audio Jack | ||
| Micro USB | ||
| USB Type-C | ||
| Lightning | ||