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- C7X vs C21
BLU C7X vs Nokia C21
What C7X does better (4) and where C21 wins (6) — every spec side by side.
Dimensions
Size comparison
C7XC21
| C7X | C21 | Difference | |
|---|---|---|---|
| Height | 165.6 mm | 169.9 mm | −4.3 mm |
| Width | 76.7 mm | 77.9 mm | −1.2 mm |
| Thickness | 9.8 mm | 8.8 mm | +1 mm |
| Weight | 203 g | 195 g | +8 g |
Drawn to the same scale from the official dimensions (front and side).
Why is C7X better than C21?
- Battery capacity4,000 mAh vs 3,000 mAh+33%
- Max video1080p vs 720p
- Selfie camera8 MP vs 5 MP+60%
- Screen-to-body ratio80.3% vs 77.5%+4%
Why is C21 better than C7X?
- RAM1 GB vs 3 GB3×
- Storage (max)32 GB vs 64 GB2×
- CPU frequency1.3 GHz vs 1.6 GHz+23%
- CPU cores4 vs 82×
- Weight203 g vs 195 g+4%
- Thickness9.8 mm vs 8.8 mm+11%
Specifications
Side by side
| Design | ||
| Weight | 203 g | 195 g |
| Thickness | 9.8 mm | 8.8 mm |
| Height | 165.6 mm | 169.9 mm |
| Width | 76.7 mm | 77.9 mm |
| Frame | — | Aluminium |
| Back | — | Plastic |
| Colours | Brown, Cyan, Dark Blue, Mint Green, Red | Dark Blue, Warm Gray |
| 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 | 269 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Screen-to-body ratio | 80.3% | 77.5% |
| Performance | ||
| Chipset | — | Unisoc SC9863A |
| Chip maker | — | Unisoc |
| Process | — | 28 nm |
| CPU cores | 4 | 8 |
| CPU frequency | 1.3 GHz | 1.6 GHz |
| GPU | — | IMG8322 |
| Memory | ||
| RAM | 1 GB | 3 GB |
| Storage (max) | 32 GB | 64 GB |
| Storage (base) | 32 GB | 32 GB |
| Storage type | eMMC 5.1 | eMMC 5.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 8 MP | 8 MP |
| Rear cameras | 1 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | 1080p | 720p |
| Selfie camera | 8 MP | 5 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 4,000 mAh | 3,000 mAh |
| Battery type | Li-Ion | Li-Ion |
| Connectivity | ||
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 4.2 | 4.2 |
| NFC | No | No |
| USB | microUSB 2.0 | microUSB 2.0 |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Rear | Rear |
| Sensors | Fingerprint (rear-mounted), accelerometer | Fingerprint (rear-mounted), accelerometer, proximity |
| SAR (head) | — | 0.43 W/kg |
| Software | ||
| OS at launch | Android 11 (Go edition) | Android 11 (Go edition) |
| Platform | Android | Android |
