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- Smart 9 HD vs C51
Infinix Smart 9 HD vs Oukitel C51
What Smart 9 HD does better (9) and where C51 wins (4) — every spec side by side.
4.4Display3.7
3.4Camera2.7
3.5Battery5.0
4.0Features3.5
Dimensions
Size comparison
Smart 9 HDC51
| Smart 9 HD | C51 | Difference | |
|---|---|---|---|
| Height | 165.7 mm | 168.1 mm | −2.4 mm |
| Width | 77.1 mm | 78.2 mm | −1.1 mm |
| Thickness | 8.4 mm | 9.4 mm | −1 mm |
| Weight | 188 g | 205 g | −17 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Smart 9 HD better than C51?
- Refresh rate90 Hz vs 60 Hz+50%
- Stereo speakersYes · C51: No
- CPU frequency2.2 GHz vs 1.6 GHz+38%
- Dual SIMYes · C51: No
- Peak brightness500 nits vs 450 nits+11%
- Weight188 g vs 205 g+9%
- Selfie camera8 MP vs 5 MP+60%
- Main camera aperturef/1.9 vs f/2.2+16%
- Thickness8.4 mm vs 9.4 mm+12%
Why is C51 better than Smart 9 HD?
- RAM4 GB vs 6 GB+50%
- Storage (max)64 GB vs 128 GB2×
- Battery capacity5,000 mAh vs 5,150 mAh+3%
- Storage (base)64 GB vs 128 GB2×
Specifications
Side by side
| Design | ||
| Weight | 188 g | 205 g |
| Thickness | 8.4 mm | 9.4 mm |
| Height | 165.7 mm | 168.1 mm |
| Width | 77.1 mm | 78.2 mm |
| Frame | Plastic | — |
| Back | Plastic | — |
| Ingress protection | IP54 | — |
| Water resistance (IPx) | IPx4 | — |
| Glass protection | — | Corning Gorilla Glass 5 |
| Colours | Metallic Black, Neo Titanium, Mint Green, Coral Gold | Gray, Blue, Purple |
| Display | ||
| Screen size | 6.7″ | 6.8″ |
| 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 | 262 ppi | 258 ppi |
| Refresh rate | 90 Hz | 60 Hz |
| Peak brightness | 500 nits | 450 nits |
| Screen-to-body ratio | 84.8% | 84.9% |
| Performance | ||
| Chipset | Mediatek Helio | Unisoc T606 |
| Chip maker | MediaTek | Unisoc |
| Process | — | 12 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.2 GHz | 1.6 GHz |
| GPU | Mali-G57 MC1 | Mali-G57 MP1 |
| Memory | ||
| RAM | 4 GB | 6 GB |
| Storage (max) | 64 GB | 128 GB |
| Storage (base) | 64 GB | 128 GB |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 13 MP | 13 MP |
| Main camera aperture | f/1.9 | f/2.2 |
| Main sensor size | — | 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 | 8 MP | 5 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 5,150 mAh |
| Battery type | — | Li-Po |
| Wired charging | 10 W | 10 W |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | No |
| eSIM | No | No |
| Dual SIM | Yes | No |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | — | 5 |
| NFC | No | No |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Satellite navigation | — | GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | Yes | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Side | Side |
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass | Fingerprint (side-mounted), accelerometer, proximity |
| Software | ||
| OS at launch | Android 14 (Go edition) | Android 13 |
| Platform | Android | Android |
| Interface | XOS 14 | — |
