| Hardware and OS | Realme C45Y | |
| Operating System | Android v12 | |
| Processor | Octa core (2 GHz, Dual core, Cortex A75 2 GHz, Hexa Core, Cortex A55) | |
| Chipset | Unisoc T618 | |
| Architecture | 64 bit | |
| Internal Memory | 128 GB | |
| External memory | Yes, Up to 256 GB | |
| RAM | 4 GB | |
| GPU | Mali-G52 MC2 | |
| Display | Realme C45Y | other phones |
| Type | IPS LCD | |
| Size | 6.67 inches (16.94 cm) | |
| PPI /points per inch/ | 252 ppi | |
| Touchscreen | Yes, Capacitive Touchscreen, Multi-touch | |
| Connectivity | Realme C45Y | other phones |
| 4G Bands | TD-LTE 2300(band 40), FD-LTE 1800(band 3) | |
| Network Support | 4G, 3G, 2G | |
| SIM card | SIM1: Nano, SIM2: Nano | |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| Bluetooth | Yes, v5.2 | |
| GPS | Yes with A-GPS, Glonass | |
| USB Connectivity | Mass storage device, USB charging, microUSB 2.0 | |
| VoLTE | Yes | |
| Wi-Fi | Yes, Wi-Fi 802.11, b/g/n | |
| Camera | Realme C45Y | other phones |
| Main camera | 50 MP, Primary Camera, 8 MP, 8 MP, | |
| Camera Setup | Triple | |
| Autofocus | Yes | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes, LED Flash | |
| Image Resolution | 8150 x 6150 Pixels | |
| Video Recording | 1920x1080 @ 30 fps | |
| Selfie camera | 16 MP, Primary Camera, | |
| Multimedia | Realme C45Y | other phones |
| Headphone jack | 3.5 mm | |
| Loudspeaker | Yes | |
| Battery | Realme C45Y | other phones |
| Capacity | 5100 mAh | |
| Type | Li-Polymer | |
| Removable | No | |
| Quick Charging | Yes, Fast | |
| USB Type-C | No | |
| Other features | Realme C45Y | other phones |
| Fingerprint Sensor | Yes | |
| Fingerprint Sensor Position | Rear | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer | |
