| Hardware and OS | Realme C31 | |
| Operating System | Android v11 | |
| Processor | 1.8 GHz, Octa Core Processor | |
| Chipset | Unisoc Tiger T610 | |
| Cores | 2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55 | |
| RAM | 4 GB | |
| Internal Memory | 128 GB | |
| Memory Card Slot | Yes | |
| Graphics | Mali G52 | |
| Dual Sim | Yes | |
| Sim Size | Nano Nano SIM | |
| Sim Type | Dual Sim, GSM GSM | |
| Display | Realme C31 | other phones |
| Screen Size | 6.5 inches, 720 x 1600 pixels, 60 Hz | |
| Display Type | Color IPS LCD screen (16M) | |
| Pixel Density | ~270 PPI | |
| Touch Screen | Yes, with Multitouch | |
| Screen Protection | Corning Gorilla Glass | |
| Connectivity | Realme C31 | other phones |
| 3G Network | Yes | |
| 4G Network | Yes | |
| Bluetooth | Yes, v5.0 | |
| EDGE | Yes | |
| GPRS | Yes | |
| GPS | Yes | |
| USB | Yes, microUSB v2.0 | |
| USB Features | USB on-the-go | |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | Yes, with wifi-hotspot | |
| Camera | Realme C31 | other phones |
| Main camera | 50 MP f/1.8 (Wide Angle)
2 MP f/2.4 (Macro)
2 MP f/2.4 (Depth Sensor) with autofocus | |
| Video Recording | 1080p | |
| Flash | Yes, LED | |
| Selfie camera | 8 MP f/2 | |
| Front Video Recording | 1080p | |
| Multimedia | Realme C31 | other phones |
| Headphone jack | Yes | |
| Email | Yes | |
| FM Radio | Yes | |
| Music | Yes | |
| Video | Yes | |
| Browser | Yes | |
| Java | No | |
| Design | Realme C31 | other phones |
| Dimensions | 164.5 x 76 x 9.1 mm | |
| Weight | 200 g | |
| Battery | Realme C31 | other phones |
| Battery capacity | 5000 mAh, Li-Po Battery | |
| Type | Non-Removable Battery | |
| Fast Charging | 18W Fast Charging | |
