| Realme 8i | Xiaomi Redmi 9 | |
| Specifications | ||
| Brand | Realme | Xiaomi |
| Model | - | - |
| Release Date | September 2021 | June 2020 |
| Operating System | Realme UI (Android 11) | MIUI (Android 10) |
| Dimensions | ||
| Size | 164.1 x 75.5 x 8.5 mm 6.46 x 2.97 x 0.33 in |
163.3 x 77.0 x 9.1 mm 6.43 x 3.03 x 0.36 in |
| Weight | 194 g 6.84 oz |
198 g 6.98 oz |
| Screen | ||
| Size | 6.6 inches | 6.53 inches |
| Resolution | 1,080 x 2,412 pixels | 1,080 x 2,340 pixels |
| PPI | 400 | 395 |
| Features | 120Hz | - |
| Cameras | ||
| Rear | Triple camera 50 MP f/1.8 Wide 2 MP f/2.4 Macro 2 MP f/2.4 Depth |
Quad camera 13 MP f/2.2 Wide 8 MP f/2.2 Ultra Wide 5 MP f/2.4 Macro 2 MP f/2.4 Depth |
| Front | 16 MP f/2.1 Wide | 8 MP f/2.0 Wide |
| Storage | ||
| Memory | 4 GB 6 GB |
3 GB 4 GB 6 GB |
| Fixed | 64 GB 128 GB |
32 GB 64 GB 128 GB |
| Removable | microSDXC | microSDXC |
| Processor | ||
| Chip | MediaTek Helio G96 Octa-core processor 12 nm |
MediaTek Helio G80 Octa-core processor 12 nm |
| CPU | 2x 2.05 GHz Cortex-A76 6x 2.00 GHz Cortex-A55 |
2x 2.00 GHz Cortex-A75 6x 1.80 GHz Cortex-A55 |
| GPU | Mali-G57 MC2 | Mali-G52 MC2 |
| Battery | ||
| Capacity | 5,000 mAh | 5,020 mAh |
| Features | Fast charging 18W | Fast charging 18W |
| Removable | ||
| Connectivity | ||
| 5G | ||
| NFC | ||
| 3.5 mm Audio Jack | ||
| Micro USB | ||
| USB Type-C | ||
| Lightning | ||