| Hardware and OS | Realme Q3i 5G | |
| Operating system | Android 11, Realme UI 2.0 | |
| Processor | Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | |
| Chipset | MediaTek MT6833 Dimensity 700 5G (7 nm) | |
| Internal memory | 128GB 4GB RAM, 128GB 6GB RAM | |
| External memory | microSDXC (dedicated slot) | |
| GPU | Mali-G57 MC2 | |
| Display | Realme Q3i 5G | other phones |
| Size | 6.5 inches, 102.0 cm2 | |
| Resolution | 1080 x 2400 pixels, 20:9 ratio | |
| Type | IPS LCD, 90Hz, 480 nits (typ), 600 nits | |
| Main Camera | Realme Q3i 5G | other phones |
| Camera | 48 MP, f/1.8, 26mm (wide), PDAF
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth) | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | Realme Q3i 5G | other phones |
| Camera | 16 MP, f/2.1, 26mm (wide) | |
| Features | HDR | |
| Video | 1080p@30fps | |
| Connectivity | Realme Q3i 5G | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 800 / 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE | |
| 5G Network | SA/NSA | |
| Bluetooth | 5.1, A2DP, LE | |
| CDMA | CDMA 800 | |
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO, QZSS | |
| NFC | No | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A, 5G | |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | |
| USB | USB Type-C 2.0 | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| Multimedia | Realme Q3i 5G | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Multimedia | 24-bit/192kHz audio | |
| Radio | Unspecified | |
| Battery | Realme Q3i 5G | other phones |
| Type | Li-Po 5000 mAh, non-removable | |
| Charging | Fast charging 18W | |
| Design | Realme Q3i 5G | other phones |
| Colors | Supersonic Blue, Supersonic Black | |
| Dimensions | 162.5 x 74.8 x 8.5 mm (6.40 x 2.94 x 0.33 in) | |
| Weight | 185 g (6.53 oz) | |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Features | Realme Q3i 5G | other phones |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | |
