| Hardware and OS POCO C3 | Poco C3 | |
| Operating system | Android v10 (Q) | |
| Custom UI | MIUI | |
| Processor | Octa core, 2.3 GHz, 1.8 GHz Cortex A53 | |
| Chipset | MediaTek Helio G35 | |
| Internal Storage | 32 GB | |
| Expandable memory | Yes, Upto 512 GB | |
| GPU | PowerVR GE8320 | |
| RAM | 3 GB | |
| Camera POCO C3 | Poco C3 | other phones |
| Main camera | 13 MP 2 MP 2 MP | |
| Aperture | F2.2 | |
| Autofocus | Yes | |
| Camera features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Image | 4128 x 3096 Pixels | |
| Flash | Yes, LED Flash | |
| Front camera | 5 MP | |
| Front camera resolution | 5 MP f/2.2 Primary Camera | |
| Video recording | 1920x1080 @ 30 fps | |
| Connectivity POCO C3 | Poco C3 | other phones |
| Bluetooth | Yes, v5.0 | |
| SIM size | SIM1: Nano, SIM2: Nano | |
| Dual SIM | Dual SIM, GSM GSM | |
| GPS | Yes, with A-GPS, Glonass | |
| Network support | 4G , 3G, 2G | |
| USB connectivity | Mass storage device, USB charging, microUSB 2.0 | |
| USB TYPE-C | No | |
| WI-FI | Yes, Wi-Fi 802.11, b/g/n | |
| Multimedia POCO C3 | Poco C3 | other phones |
| Audio jack | 3.5 MM | |
| Loudspeaker | Yes | |
| Battery POCO C3 | Poco C3 | other phones |
| Capacity | 5000 mAh | |
| Type | Li-Polymer | |
| User replaceable | No | |
| Design POCO C3 | Poco C3 | other phones |
| Colors | Matte Black, Arctic Blue, Lime Green | |
| Height | 164.9 mm | |
| Width | 77.1 mm | |
| Thickness | 9 mm | |
| Weight | 194 grams | |
| Waterproof | Yes, Splash proof | |
| Features POCO C3 | Poco C3 | other phones |
| Fingerprint sensor position | Rear | |
| Fingerprint sensor | Yes | |
| Other sensors | Ambient Light Sensor, Proximity Sensor, Accelerometer, Face Unlock, Dual App Support, 10W Charger, Screen Mirror/Cast | |
