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- C21 vs C31
Realme C21 vs Realme C31
What C21 does better (2) and where C31 wins (1) — every spec side by side.
Dimensions
Size comparison
C21C31
| C21 | C31 | Difference | |
|---|---|---|---|
| Height | 165.2 mm | 164.7 mm | +0.5 mm |
| Width | 76.4 mm | 76.1 mm | +0.3 mm |
| Thickness | 8.9 mm | 8.4 mm | +0.5 mm |
| Weight | 190 g | 197 g | −7 g |
Drawn to the same scale from the official dimensions (front and side).
Why is C21 better than C31?
- CPU frequency2.3 GHz vs 1.8 GHz+28%
- Weight190 g vs 197 g+4%
Why is C31 better than C21?
- Thickness8.9 mm vs 8.4 mm+6%
Specifications
Side by side
| Design | ||
| Weight | 190 g | 197 g |
| Thickness | 8.9 mm | 8.4 mm |
| Height | 165.2 mm | 164.7 mm |
| Width | 76.4 mm | 76.1 mm |
| Frame | Plastic | Plastic |
| Back | Plastic | Plastic |
| Glass protection | Corning Gorilla Glass 3 | Panda Glass |
| Colours | Cross Black, Cross Blue | Light Silver, Dark Green |
| Display | ||
| Screen size | 6.5″ | 6.5″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,600 px | 1,600 px |
| Pixel density | 270 ppi | 270 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Peak brightness | 400 nits | 400 nits |
| Screen-to-body ratio | 80.8% | 81.4% |
| Performance | ||
| Chipset | Mediatek MT6765G Helio G35 | Unisoc Tiger T612 |
| Chip maker | MediaTek | Unisoc |
| Process | 12 nm | 12 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.3 GHz | 1.8 GHz |
| GPU | PowerVR GE8320 | Mali-G57 |
| Memory | ||
| RAM | 4 GB | 4 GB |
| Storage (max) | 64 GB | 64 GB |
| Storage (base) | 32 GB | 32 GB |
| Storage type | eMMC 5.1 | UFS 2.2 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 13 MP | 13 MP |
| Main camera aperture | f/2.2 | f/2.2 |
| Main sensor size | 1/3.06" | 1/3.06" |
| 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 | 5,000 mAh |
| Wired charging | 10 W | 10 W |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | No |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 5 | 5 |
| NFC | No | No |
| USB | microUSB 2.0 | microUSB 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 | Side |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity |
| Software | ||
| OS at launch | Android 10 | Android 11 |
| Platform | Android | Android |
| Interface | — | realme UI R Edition |
