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- Poco C31 vs Poco C40
Xiaomi Poco C31 vs Xiaomi Poco C40
What Poco C31 does better (3) and where Poco C40 wins (6) — every spec side by side.
Dimensions
Size comparison
Poco C31Poco C40
| Poco C31 | Poco C40 | Difference | |
|---|---|---|---|
| Height | 164.9 mm | 169.6 mm | −4.7 mm |
| Width | 77.1 mm | 76.6 mm | +0.5 mm |
| Thickness | 9 mm | 9.2 mm | −0.2 mm |
| Weight | 194 g | 204 g | −10 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Poco C31 better than Poco C40?
- CPU frequency2.3 GHz vs 2 GHz+15%
- Weight194 g vs 204 g+5%
- Thickness9 mm vs 9.2 mm+2%
Why is Poco C40 better than Poco C31?
- Wired charging10 W vs 18 W+80%
- NFCNo · Poco C31: Yes
- Battery capacity5,000 mAh vs 6,000 mAh+20%
- Screen size6.5″ vs 6.7″+3%
- Wi-Fi standardWi-Fi 4 vs Wi-Fi 5+25%
- Process12 nm vs 11 nm+9%
Specifications
Side by side
| Design | ||
| Weight | 194 g | 204 g |
| Thickness | 9 mm | 9.2 mm |
| Height | 164.9 mm | 169.6 mm |
| Width | 77.1 mm | 76.6 mm |
| Glass protection | — | Corning Gorilla Glass |
| Colours | Royal Blue, Shadow Gray | Power Black, Coral Green, Poco Yellow |
| Display | ||
| Screen size | 6.5″ | 6.7″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,600 px | 1,650 px |
| Pixel density | 269 ppi | 268 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Peak brightness | — | 400 nits |
| Screen-to-body ratio | 81% | 82% |
| Performance | ||
| Chipset | Mediatek MT6765G Helio G35 | JLQ JR510 |
| Chip maker | MediaTek | — |
| Process | 12 nm | 11 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.3 GHz | 2 GHz |
| GPU | PowerVR GE8320 | Mali-G57 MC1 |
| Memory | ||
| RAM | 4 GB | 4 GB |
| Storage (max) | 64 GB | 64 GB |
| Storage (base) | 32 GB | 32 GB |
| Storage type | eMMC 5.1 | — |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 13 MP | 13 MP |
| Main camera aperture | f/2.2 | f/2.2 |
| Rear cameras | 1 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 5 MP | 5 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 6,000 mAh |
| Battery type | Li-Po | Li-Po |
| Wired charging | 10 W | 18 W |
| Wireless charging | No | No |
| Connectivity | ||
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 5 |
| Bluetooth | 5 | 5 |
| NFC | No | Yes |
| USB | microUSB 2.0 | USB Type-C 2.0 |
| USB version | — | 2 |
| Satellite navigation | GLONASS, BDS | GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Rear | Rear |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | Fingerprint (rear-mounted), accelerometer, proximity |
| SAR (head) | 0.51 W/kg | — |
| Software | ||
| OS at launch | Android 10 | Android 11 |
| Platform | Android | Android |
| Interface | MIUI 12 | MIUI 13 for POCO |









