Side-by-side technical data
Xiaomi Poco C40 vs Xiaomi Poco M8x
Comparison between Xiaomi Poco C40 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 for 5G, a higher-resolution main camera, and a larger battery; the Poco C40 is lighter and has a denser display. The M8x also has the performance edge, with a Qualcomm Snapdragon 4 Gen 5 and 6 GB of RAM versus the C40’s JLQ JR510 and 4 GB.
The C40 display has 268 ppi and 1650 px of vertical resolution, against 254 ppi and 1600 px on the M8x; the M8x counters with 120 Hz instead of 60 Hz. Its main camera jumps from 13 MP to 50 MP, battery capacity from 6000 mAh to 7900 mAh, and charging from 18 W to 45 W.
The M8x adds 5G, Android 16, and an 8 MP front camera, while the C40 has LTE, Android 11, and 5 MP. Both have an IPS LCD display, UFS 2.2 storage, and expandable storage; the C40 weighs 204 g and the M8x 232 g.
Xiaomi Poco C40
The Xiaomi Poco C40 is the better buy for someone who wants a lighter phone: 204 g versus 232 g, with 268 ppi.
Xiaomi Poco M8x
The Xiaomi Poco M8x is the better buy for anyone looking for 5G, a 50 MP main camera, and a 7900 mAh battery.
The verdict
Your pick: Xiaomi Poco M8x, ahead on Design & display, Performance & hardware, Camera and Battery & charging.
| Category | Poco C40 | Poco M8x |
|---|---|---|
| Design & display | 4.5 | 5.0 |
| Performance & hardware | 3.3 | 5.9 |
| Camera | 3.0 | 3.8 |
| Connectivity | 5.6 | 5.8 |
| Battery & charging | 6.6 | 7.1 |
Which one is for you?
Xiaomi Poco C40, if you care about…
- Display Pixel Density
- 268 ppi
- against 254 ppi
- Weight
- 204 g
- against 232 g
- Display Vertical Resolution
- 1,650 px
- against 1,600 px
Xiaomi Poco M8x, if you care about…
- Battery Capacity
- 7,900 mAh
- against 6,000 mAh
- RAM Capacity
- 6 GB
- against 4 GB
- Bluetooth Version
- Bluetooth 5.1
- against Bluetooth 5.0
- Display Refresh Rate
- 120 Hz
- against 60 Hz
Specification comparison
Performance
| Specification | Poco C40 | Poco M8x |
|---|---|---|
| Processor Model | JLQ JR510 | Qualcomm Snapdragon 4 Gen 5 |
| Processor Process Size | 11 nm | 4 nm Best value |
| Graphics GPU | Mali-G57 MC1 | Qualcomm Adreno 613 |
| Storage Type | UFS 2.2 | UFS 2.2 |
| Maximum CPU Clock | 2 GHz | 2.4 GHz Best value |
| Maximum Storage Capacity | 64 GB | 128 GB Best value |
| AnTuTu Score | 128,944 | — |
| CPU Description | Octa-core CPU with four Cortex-A55 cores at 2.0 GHz and four Cortex-A55 cores at 1.5 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 | v9 | — |
Design
| Specification | Poco C40 | Poco M8x |
|---|---|---|
| Body Colors | Black, Green, Blue, Yellow | Green, Black, Blue |
| Body Thickness | 9.2 mm | 8.8 mm Best value |
| Body Width | 76.6 mm | 78.4 mm |
| Body Height | 169.6 mm | 170.1 mm |
| Weight | 204 g Best value | 232 g |
| Usable Surface | 82 % | 86.2 % Best value |
| Body Materials | Plastic | Glass, Plastic, Leather Best value |
| Resistance Features | Splash Resistant, Dust Resistant | IP64 |
Battery
| Specification | Poco C40 | Poco M8x |
|---|---|---|
| Battery Capacity | 6,000 mAh | 7,900 mAh Best value |
| Battery Type | Li-Polymer | — |
| Fast Charge Power | 18 W | 45 W Best value |
| Battery Features | Fast Charging, Non-Removable, Reverse Charging, Rechargeable, Battery Level Indicator, Charger Included | Fast Charging, Reverse Charging, Battery Level Indicator, Charger Included, Rechargeable |
Display
| Specification | Poco C40 | Poco M8x |
|---|---|---|
| Display Aspect Ratio | 20:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Peak Display Brightness | 400 nits | — |
| Display Diagonal | 6.71″ | 6.9″ Best value |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,650 px Best value | 1,600 px |
| Display Pixel Density | 268 ppi Best value | 254 ppi |
| Display Refresh Rate | 60 Hz | 120 Hz Best value |
| Display Features | Water Drop Notch, Scratch Resistant, Capacitive Touch, Multi-Touch, Frameless, IPS LCD | Gorilla Glass 7i, Capacitive Touch |
Sensors
| Specification | Poco C40 | Poco M8x |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Side |
Sensor
| Specification | Poco C40 | Poco M8x |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor, Light Sensor, Virtual Proximity Sensing | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass |
Software
| Specification | Poco C40 | Poco M8x |
|---|---|---|
| Operating System | Android 11 | Android 16 |
| OS Family | Android | Android |
| OS Version | 11 | 16 Best value |
| Google Services | Yes | — |
Connectivity
| Specification | Poco C40 | 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 1700 AWS, 3G UMTS 1900, 3G UMTS 2100, 3G UMTS B850, 3G UMTS B900, 3G UMTS B1, 3G UMTS B2, 3G UMTS B3, 3G UMTS B4, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 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 | GSM, HSPA, LTE, 5G Best value |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g/n/ac | Wi-Fi 5 (802.11ac) |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display | — |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.1 Best value |
| Bluetooth Profiles | A2DP, LE, EDR, HID | A2DP, LE |
| Navigation Systems | GPS, A-GPS, GLONASS, Galileo, BeiDou Best value | GPS, GLONASS, Galileo, BeiDou |
| Connectivity Features | USB Charging, USB Mass Storage, USB OTG, USB Type-C, NFC, 3.5 mm Audio Jack, FM Radio, Computer Sync, OTA Sync, Tethering, Infrared, VoLTE | 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 | — | 0.82 W/kg |
| SAR American Body | — | 0.67 W/kg |
| Max. download speed | — | 2,800 Mbps |
Audio
| Specification | Poco C40 | Poco M8x |
|---|---|---|
| Microphone Count | — | 2 |
| Audio Features | A2DP, LE, EDR, HID, Loudspeaker | Stereo Speakers, Hi-Res Audio Best value |
Technical
| Specification | Poco C40 | Poco M8x |
|---|---|---|
| Model numbers | 220333QPG | MZB0PXPIN |
