Side-by-side technical data
Xiaomi Poco C31 vs Xiaomi Poco M8x
Comparison between Xiaomi Poco C31 and Xiaomi Poco M8x: camera, battery, fast charging, display, performance and colors, side by side. More phones from Xiaomi.
NeoTeo's verdict
Which of the two is the better buy
The Xiaomi Poco M8x is the more capable choice, leading in performance, camera, and battery with a Snapdragon 4 Gen 5, a 50 MP main camera, and 7,900 mAh. The Poco C31 suits buyers who prefer a lighter phone and higher screen pixel density.
The M8x has a 6.9-inch display versus 6.53 inches on the C31, while the C31 is sharper at 269 ppi versus 254 ppi. It is also lighter, at 194 g versus 232 g. The M8x brings Android 16 and 5G; the C31 has Android 10 and 4G.
The M8x pairs a 7,900 mAh battery with 45 W charging, against 5,000 mAh and 10 W for the C31. Its 50 MP main camera tops the C31’s 13 MP camera, and it has 6 GB of RAM versus 4 GB and 128 GB of storage versus 64 GB. Both have an IPS LCD display, 720 × 1,600 px resolution, and expandable storage.
Xiaomi Poco C31
The Xiaomi Poco C31 is the better buy for anyone prioritizing lower weight: 194 g versus 232 g for the Poco M8x.
Xiaomi Poco M8x
The Xiaomi Poco M8x is the better buy for anyone seeking 5G, more storage, and a larger battery with faster charging.
The verdict
Your pick: Xiaomi Poco M8x, ahead on Design & display, Performance & hardware, Camera, Connectivity and Battery & charging.
| Category | Poco C31 | Poco M8x |
|---|---|---|
| Design & display | 4.6 | 5.0 |
| Performance & hardware | 2.5 | 5.9 |
| Camera | 3.0 | 3.8 |
| Connectivity | 4.2 | 5.8 |
| Battery & charging | 5.1 | 7.1 |
Which one is for you?
Xiaomi Poco C31, if you care about…
- Display Pixel Density
- 269 ppi
- against 254 ppi
- Weight
- 194 g
- against 232 g
Xiaomi Poco M8x, if you care about…
- Battery Capacity
- 7,900 mAh
- against 5,000 mAh
- RAM Capacity
- 6 GB
- against 4 GB
- Wi-Fi Standards
- Wi-Fi 5 (802.11ac)
- against Wi-Fi 802.11a/b/g/n
- Storage Type
- UFS 2.2
- against eMMC 5.1
Specification comparison
Performance
| Specification | Poco C31 | Poco M8x |
|---|---|---|
| Processor Model | MediaTek Helio G35 | Qualcomm Snapdragon 4 Gen 5 |
| Processor Process Size | 12 nm | 4 nm Best value |
| Graphics GPU | PowerVR GE8320 | Qualcomm Adreno 613 |
| Storage Type | eMMC 5.1 | UFS 2.2 Best value |
| Maximum CPU Clock | 2.3 GHz | 2.4 GHz Best value |
| Maximum Storage Capacity | 64 GB | 128 GB Best value |
| AnTuTu Score | 109,054 | — |
| Geekbench 6 Single-Core | 189 | — |
| Geekbench 6 Multi-Core | 810 | — |
| CPU Description | Octa-core CPU with four Cortex-A53 cores at 2.3 GHz and four Cortex-A53 cores at 1.8 GHz. | Octa-core CPU with 2×2.4 GHz Cortex-A78 cores and 6×2.0 GHz Cortex-A55 cores |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 4 GB | 6 GB Best value |
| RAM Type | LPDDR4X | DDR4 |
| Expandable Storage | Yes | Yes |
| AnTuTu version | v8 | — |
Design
| Specification | Poco C31 | Poco M8x |
|---|---|---|
| Body Colors | Blue, Grey | Green, Black, Blue |
| Body Thickness | 9 mm | 8.8 mm Best value |
| Body Width | 77.1 mm | 78.4 mm |
| Body Height | 164.9 mm | 170.1 mm |
| Weight | 194 g Best value | 232 g |
| Usable Surface | 81 % | 86.2 % Best value |
| Body Materials | Plastic | Glass, Plastic, Leather Best value |
| Resistance Features | — | IP64 |
Battery
| Specification | Poco C31 | Poco M8x |
|---|---|---|
| Battery Capacity | 5,000 mAh | 7,900 mAh Best value |
| Battery Type | Li-Polymer | — |
| Fast Charge Power | 10 W | 45 W Best value |
| Battery Features | Fast Charging, Non-Removable, Rechargeable, Battery Level Indicator | Fast Charging, Reverse Charging, Battery Level Indicator, Charger Included, Rechargeable Best value |
Display
| Specification | Poco C31 | Poco M8x |
|---|---|---|
| Display Aspect Ratio | 20:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Peak Display Brightness | 480 nits | — |
| Display Diagonal | 6.53″ | 6.9″ Best value |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,600 px | 1,600 px |
| Display Pixel Density | 269 ppi Best value | 254 ppi |
| Display Refresh Rate | — | 120 Hz |
| Touch Sampling Rate | 120 Hz | — |
| Display Contrast Ratio | 1,500 :1 | — |
| Display Features | Water Drop Notch, Gorilla Glass 3, Capacitive Touch, Multi-Touch, Scratch Resistant, Frameless, Touchscreen | Gorilla Glass 7i, Capacitive Touch |
Sensors
| Specification | Poco C31 | Poco M8x |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Side |
Sensor
| Specification | Poco C31 | Poco M8x |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor, Light Sensor, Compass | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass |
Software
| Specification | Poco C31 | Poco M8x |
|---|---|---|
| Operating System | Android 10 | Android 16 |
| OS Family | Android | Android |
| OS Version | 10 | 16 Best value |
| Google Services | Yes | — |
Connectivity
| Specification | Poco C31 | Poco M8x |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM Dual Standby | Dual Nano-SIM, Dual SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B8, 4G LTE B40, 4G LTE B41 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B8, LTE B28, 4G LTE B40, 4G LTE B41, 5G NR n1, 5G NR n3, 5G NR n5, 5G NR n8, 5G NR n28, 5G NR n40, 5G NR n78 |
| Cellular Technologies | GSM, HSPA, LTE, 4G | GSM, HSPA, LTE, 5G Best value |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g/n | Wi-Fi 5 (802.11ac) Best value |
| Wi-Fi Features | Wi-Fi Direct, Wi-Fi Hotspot | — |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.1 Best value |
| Bluetooth Profiles | A2DP, LE, EDR | A2DP, LE |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, Galileo Best value | GPS, GLONASS, Galileo, BeiDou |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, Computer Sync, OTA Sync, Tethering, VoLTE, USB Charging, USB Mass Storage, USB OTG | 3.5 mm Audio Jack, FM Radio, NFC, USB Type-C, USB 2.0 |
| USB Version | USB 2.0 | USB 2.0 |
| SAR American Head | 0.51 W/kg Best value | 0.82 W/kg |
| SAR American Body | 0.83 W/kg | 0.67 W/kg Best value |
| Max. download speed | 300 Mbps | 2,800 Mbps Best value |
| Max. upload speed | 150 Mbps | — |
Audio
| Specification | Poco C31 | Poco M8x |
|---|---|---|
| Microphone Count | — | 2 |
| Audio Features | A2DP, LE, Loudspeaker | Stereo Speakers, Hi-Res Audio Best value |
Technical
| Specification | Poco C31 | Poco M8x |
|---|---|---|
| Model numbers | MZB0A0MIN, MZB0A0KIN, 211033MI, 22031116AI | MZB0PXPIN |
