| Hardware and OS | Realme 4 | |
| Operating system | Android v9.0 (Pie) | |
| Chipset | MediaTek Helio P70 | |
| Processor | Octa core (2.1 GHz, Quad core, Cortex A73 2 GHz, Quad core, Cortex A53) | |
| Graphics | Mali-G72 MP3 | |
| RAM | 4 GB | |
| Internal Storage | 64 GB | |
| Expandable memory | Yes Up to 256 GB | |
| Custom UI | ColorOS | |
| Display | Realme 4 | other phones |
| Type | IPS LCD | |
| Size | 6.3 inches | |
| Resolution | 1080 x 2340 pixels | |
| Pixel Density | 409 ppi | |
| Touchscreen | Yes Capacitive Touchscreen, Multi-touch | |
| Connectivity | Realme 4 | other phones |
| Network support | 4G , 3G, 2G | |
| WI-FI | Yes Wi-Fi 802.11, b/g/n | |
| Gps | Yes with A-GPS | |
| Bluetooth | Yes | |
| Dual SIM | Dual SIM, GSM GSM, Dual VoLTE | |
| SIM size | SIM1: Nano, SIM2: Nano | |
| USB connectivity | Mass storage device, USB charging, microUSB | |
| Camera | Realme 4 | other phones |
| Main camera | 16 MP 5 MP | |
| Image | 4616 x 3464 Pixels | |
| Front camera | 13 MP | |
| Camera features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes LED Flash | |
| Autofocus | Yes | |
| Battery | Realme 4 | other phones |
| Capacity | 4400 mAh | |
| Type | Li-ion | |
| User replaceable | No | |
| Other | Realme 4 | other phones |
| Fingerprint sensor | Yes | |
| Other sensors | Light sensor, Proximity sensor, Accelerometer | |
