| Hardware and OS | Poco X3 | |
| Operating system | Android v10 (Q) | |
| Custom UI | MIUI | |
| Processor | Octa core (2.3 GHz, Dual core, Kryo 470 1.8 GHz, Hexa Core, Kryo 470) | |
| Chipset | Qualcomm Snapdragon 732G | |
| Internal Storage | 64 GB | |
| Expandable memory | Yes, Upto 512 GB | |
| GPU | Adreno 618 | |
| RAM | 6 GB | |
| Camera | Poco X3 | other phones |
| Main camera | 64 MP 13 MP 2 MP 2 MP | |
| Aperture | F2.2 | |
| Autofocus | Yes | |
| Camera features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Image | 9000 x 7000 Pixels | |
| Flash | Yes, LED Flash | |
| Front camera | 20 MP | |
| Front camera resolution | 20 MP f/2.2 Primary Camera | |
| Video recording | 3840x2160 @ 30 fps, 1920x1080 @ 60 fps | |
| Connectivity | Poco X3 | other phones |
| Bluetooth | Yes, v5.1 | |
| SIM size | SIM1: Nano, SIM2: Nano (Hybrid) | |
| Dual SIM | Dual SIM, GSM GSM | |
| GPS | Yes, with A-GPS, Glonass | |
| Network support | 4G , 3G, 2G | |
| USB connectivity | Mass storage device, USB charging | |
| USB TYPE-C | Yes | |
| WI-FI | Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz, MIMO | |
| Multimedia | Poco X3 | other phones |
| Audio jack | 3.5 MM | |
| Loudspeaker | Yes | |
| Battery | Poco X3 | other phones |
| Capacity | 6000 mAh | |
| Type | Lithium-ion Polymer | |
| User replaceable | No | |
| Quick charging | Yes, Fast, 33W | |
| Design | Poco X3 | other phones |
| Colors | Shadow Gray, Cobalt Blue | |
| Height | 165.3 mm | |
| Width | 76.8 mm | |
| Thickness | 10.08 mm | |
| Weight | 225 grams | |
| Waterproof | Yes, Splash proof | |
| Features | Poco X3 | other phones |
| Fingerprint sensor position | Side | |
| Fingerprint sensor | Yes | |
| Other sensors | Acceleration Sensor, Gyroscope, Ambient Light Sensor, Proximity Sensor, E-Compass, Face Unlock, Dual App Support, 33W Fast Charger, Notification Light, Screen Mirror/Cast, Liquid Cooling | |
