| Hardware and OS | Realme 8i | |
| Operating system | Android 11, Realme UI 2.0 | |
| Processor | Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | |
| Chipset | Mediatek Helio G96 (12 nm) | |
| Internal memory | 64GB 4GB RAM, 128GB 6GB RAM | |
| External memory | microSDXC (dedicated slot) | |
| GPU | Mali-G57 MC2 | |
| Display | Realme 8i | other phones |
| Size | 6.6 inches, 104.8 cm2 | |
| Resolution | 1080 x 2412 pixels, 20:9 ratio | |
| Type | IPS LCD, 120Hz, 600 nits (peak) | |
| Main Camera | Realme 8i | other phones |
| Camera | 50 MP, f/1.8, 26mm (wide), 1/2.76", 0.64µm, PDAF
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth) | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | Realme 8i | other phones |
| Camera | 16 MP, f/2.1, (wide), 1/3.0", 1.0µm | |
| Features | Panorama | |
| Video | 1080p@30fps | |
| Connectivity | Realme 8i | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | 1, 3, 5, 8, 38, 40, 41 | |
| Bluetooth | 5.1, A2DP, LE | |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | |
| NFC | No | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A | |
| Technology | GSM / HSPA / LTE | |
| USB | USB Type-C 2.0, USB On-The-Go | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot | |
| Multimedia | Realme 8i | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Radio | No | |
| Battery | Realme 8i | other phones |
| Type | Li-Po 5000 mAh, non-removable | |
| Charging | Fast charging 18W | |
| Design | Realme 8i | other phones |
| Body build | Glass front, plastic frame, plastic back | |
| Colors | Black, Purple | |
| Dimensions | 164.1 x 75.5 x 8.5 mm (6.46 x 2.97 x 0.33 in) | |
| Weight | 194 g (6.84 oz) | |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Features | Realme 8i | other phones |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | |
