| Hardware and OS | Realme C3 | |
| Operating system | Android 10.0 | |
| Processor | Octa-core (2x2.0 GHz Cortex-A75, 6x1.7 GHz Cortex-A55) | |
| GPU | Mali-G52 2EEMC2 | |
| RAM | 3 GB, 4 GB | |
| Internal Storage | 32 GB, 64 GB | |
| Memory Card Slot | microSDXC (dedicated slot) | |
| User Interface | Yes | |
| Display | Realme C3 | other phones |
| Type | IPS LCD | |
| Size | 6.5 inches | |
| Resolution | 720 x 1560 pixels | |
| Colors | 16 Millions Colors | |
| Pixel Density | ~264 PPI density | |
| Touchscreen | Capacitive touchscreen | |
| Protection | Corning Gorilla Glass 3 | |
| Connectivity | Realme C3 | other phones |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500) | |
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | |
| GPS | Yes, with A-GPS, GLONASS, BDS | |
| NFC | No | |
| USB | microUSB 2.0, USB On-The-Go | |
| Speed | HSPA, LTE-A | |
| SIM | Nano SIM | |
| Dual SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Wireless Charging | No | |
| Camera | Realme C3 | other phones |
| Main camera | 12 MP, 2 MP depth sensor | |
| Features | LED flash, HDR, panorama | |
| Image | 1080p | |
| Video | 1080p@30fps | |
| Selfie camera | 5 MP | |
| Multimedia | Realme C3 | other phones |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Radio | Yes | |
| Video Playback | Yes | |
| Video Out | Yes | |
| 3.5 mm Jack | yes | |
| Design | Realme C3 | other phones |
| Type | Bar | |
| Waterproof | No | |
| Battery | Realme C3 | other phones |
| Capacity | Li-Po 5000 mAh battery | |
| Placement | Non-Removable | |
| Other | Realme C3 | other phones |
| Sensors | Accelerometer, proximity, compass, | |
