| Hardware and OS Realme C3s |
| Operating system: | Android v9.0 (Pie) |
| Processor: | Mediatek MT6765 Helio P35 (12nm) |
| RAM: | 4 GB |
| Internal Storage: | 64 GB |
| Expandable memory: | Yes, Upto 256 GB |
| Display Realme C3s |
| Type: | IPS LCD |
| Size: | 6.2 inches |
| Resolution: | 720 x 1600 Pixels |
| Pixel Density: | 282 ppi |
| Touchscreen: | Yes, Capacitive Touchscreen, Multi-touch |
| Connectivity Realme C3s |
| Network support: | 4G , 3G, 2G |
| WI-FI: | Yes, Wi-Fi 802.11, b/g/n |
| Gps: | Yes, with A-GPS |
| Bluetooth: | Yes, v4.2 |
| Dual SIM: | Dual SIM, GSM GSM |
| SIM size: | SIM1: Nano, SIM2: Nano |
| USB connectivity: | Mass storage device, USB charging |
| Camera Realme C3s |
| Front camera resolution: | 8 MP Primary Camera |
| Camera features: | Digital Zoom, Auto Flash, Face detection, Touch to focus |
| Flash: | Yes, LED Flash |
| Autofocus: | Yes |
| Video recording: | Yes |
| Multimedia Realme C3s |
| Audio jack: | 3.5 MM |
| Loudspeaker: | Yes |
| Design Realme C3s |
| Colours: | Diamond Black, Diamond Blue |
| Battery Realme C3s |
| Capacity: | 4200 mAh |
| Type: | Lithium Polymer |
| User replaceable: | No |
| Other Realme C3s |
| Fingerprint sensor: | Yes |
| Fingerprint sensor position: | Rear |
| Other sensors: | Accelerometer, Proximity, Compass |
