| Hardware and OS 128GB 8GB RAM | Realme X4 | |
| Operating system | Android v10 (Q) | |
| Processor | Octa core 2.4 GHz | |
| Chipset | MediaTek Dimensity 800U 5G - (7 nm) | |
| Internal Storage | 128 GB | |
| GPU | Mali- G57 | |
| RAM | 8 GB | |
| Camera 128GB 8GB RAM | Realme X4 | other phones |
| Main camera | 64 MP 8 MP 2 MP 2 MP | |
| Autofocus | Yes | |
| Camera features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes, LED Flash | |
| Front camera | 32 MP | |
| Front camera resolution | 32 MP, (wide), f/2.5 | |
| Video recording | Yes | |
| Connectivity 128GB 8GB RAM | Realme X4 | other phones |
| Bluetooth | Yes, v5.1 | |
| SIM size | SIM1: Nano, SIM2: Nano | |
| Dual SIM | Dual SIM, GSM GSM | |
| GPS | Yes, with A-GPS, Glonass | |
| Network support | 4G , 3G, 2G | |
| USB connectivity | Mass storage device, USB charging | |
| WI-FI | Yes, Wi-Fi 802.11 a/b/g/n/ac | |
| Multimedia 128GB 8GB RAM | Realme X4 | other phones |
| Loudspeaker | Yes | |
| Battery 128GB 8GB RAM | Realme X4 | other phones |
| Capacity | 4300 mAh | |
| Type | Li-ion | |
| User replaceable | No | |
| Design 128GB 8GB RAM | Realme X4 | other phones |
| Colors | Blue, White, Rainbow | |
| Features 128GB 8GB RAM | Realme X4 | other phones |
| Fingerprint sensor position | Rear | |
| Fingerprint sensor | Yes | |
| Other sensors | Acceleration, Gyro, Proximity, Compass | |
