- android.gs
- Compare
- G51 vs C21
BLU G51 vs Nokia C21
What G51 does better (7) and where C21 wins (5) — every spec side by side.
Dimensions
Size comparison
G51C21
| G51 | C21 | Difference | |
|---|---|---|---|
| Height | 155.3 mm | 169.9 mm | −14.6 mm |
| Width | 73.5 mm | 77.9 mm | −4.4 mm |
| Thickness | 9.5 mm | 8.8 mm | +0.7 mm |
| Weight | 166 g | 195 g | −29 g |
Drawn to the same scale from the official dimensions (front and side).
Why is G51 better than C21?
- Process12 nm vs 28 nm2.3×
- CPU frequency2 GHz vs 1.6 GHz+25%
- Max video1080p vs 720p
- Weight166 g vs 195 g+17%
- Pixel density276 ppi vs 269 ppi+3%
- Selfie camera8 MP vs 5 MP+60%
- Screen-to-body ratio81.4% vs 77.5%+5%
Why is C21 better than G51?
- RAM2 GB vs 3 GB+50%
- Storage (max)32 GB vs 64 GB2×
- CPU cores4 vs 82×
- Screen size6.1″ vs 6.5″+7%
- Thickness9.5 mm vs 8.8 mm+8%
Specifications
Side by side
| Design | ||
| Weight | 166 g | 195 g |
| Thickness | 9.5 mm | 8.8 mm |
| Height | 155.3 mm | 169.9 mm |
| Width | 73.5 mm | 77.9 mm |
| Frame | — | Aluminium |
| Back | — | Plastic |
| Colours | Black, Blue, Green, Silver, Gold | Dark Blue, Warm Gray |
| Display | ||
| Screen size | 6.1″ | 6.5″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,520 px | 1,600 px |
| Pixel density | 276 ppi | 269 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Screen-to-body ratio | 81.4% | 77.5% |
| Performance | ||
| Chipset | Mediatek MT6761 Helio A22 | Unisoc SC9863A |
| Chip maker | MediaTek | Unisoc |
| Process | 12 nm | 28 nm |
| CPU cores | 4 | 8 |
| CPU frequency | 2 GHz | 1.6 GHz |
| GPU | PowerVR GE8320 | IMG8322 |
| Memory | ||
| RAM | 2 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 | 3,000 mAh | 3,000 mAh |
| Battery type | Li-Po | 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, proximity | 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 |
