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- 8 vs X51 5G
OnePlus 8 vs Vivo X51 5G
What 8 does better (7) and where X51 5G wins (7) — every spec side by side.
Dimensions
Size comparison
8X51 5G
| 8 | X51 5G | Difference | |
|---|---|---|---|
| Height | 160.2 mm | 158.5 mm | +1.7 mm |
| Width | 72.9 mm | 72.8 mm | +0.1 mm |
| Thickness | 8 mm | 8 mm | = |
| Weight | 180 g | 182 g | −2 g |
Drawn to the same scale from the official dimensions (front and side).
Why is 8 better than X51 5G?
- RAM12 GB vs 8 GB+50%
- Stereo speakersYes · X51 5G: No
- 4K video frame rate60 fps vs 30 fps2×
- CPU frequency2.84 GHz vs 2.4 GHz+18%
- USB version3.1 vs 2+55%
- Wi-Fi standardWi-Fi 6 vs Wi-Fi 5+20%
- Charged in 30 min68% vs 57%+19%
Why is X51 5G better than 8?
- Telephoto cameraNo · 8: Yes
- Wired charging30 W vs 33 W+10%
- Storage (base)128 GB vs 256 GB2×
- Rear cameras2 vs 42×
- Selfie camera16 MP vs 32 MP2×
- Main camera aperturef/1.8 vs f/1.6+12%
- Screen-to-body ratio88.7% vs 90.6%+2%
Specifications
Side by side
| Design | ||
| Weight | 180 g | 182 g |
| Thickness | 8 mm | 8 mm |
| Height | 160.2 mm | 158.5 mm |
| Width | 72.9 mm | 72.8 mm |
| Frame | Aluminium | Aluminium |
| Back | Glass | Glass |
| Glass protection | Corning Gorilla Glass 5 | — |
| Colours | Onyx Black, Glacial Green, Interstellar Glow, Polar Silver | Gray |
| Display | ||
| Screen size | 6.6″ | 6.6″ |
| Panel | Fluid AMOLED | AMOLED |
| OLED panel | Yes | Yes |
| Resolution (width) | 1,080 px | 1,080 px |
| Resolution (height) | 2,400 px | 2,376 px |
| Pixel density | 402 ppi | 398 ppi |
| Refresh rate | 90 Hz | 90 Hz |
| Peak brightness | 1,300 nits | — |
| Measured brightness | 803 nits | — |
| Screen-to-body ratio | 88.7% | 90.6% |
| HDR | Yes | Yes |
| Performance | ||
| Chipset | Qualcomm SM8250 Snapdragon 865 5G | Qualcomm SM7250 Snapdragon 765G 5G |
| Chip maker | Qualcomm | Qualcomm |
| Process | 7 nm | 7 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.84 GHz | 2.4 GHz |
| GPU | Adreno 650 | Adreno 620 |
| AnTuTu score | 564,708 | — |
| Geekbench 6 (multi-core) | 13,291 | — |
| 3DMark Wild Life Extreme | 1,116 | — |
| Memory | ||
| RAM | 12 GB | 8 GB |
| Storage (max) | 256 GB | 256 GB |
| Storage (base) | 128 GB | 256 GB |
| Storage type | UFS 3.0 | UFS 2.1 |
| Memory card slot | No | No |
| Camera | ||
| Main camera | 48 MP | 48 MP |
| Main camera aperture | f/1.8 | f/1.6 |
| Main sensor size | 1/2.0" | — |
| Rear cameras | 2 | 4 |
| Optical stabilisation | Yes | Yes |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | No | Yes |
| Optical zoom | — | 5× |
| Max video | 4K | 4K |
| 4K video frame rate | 60 fps | 30 fps |
| Selfie camera | 16 MP | 32 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 4,300 mAh | 4,315 mAh |
| Battery type | Li-Po | — |
| Wired charging | 30 W | 33 W |
| Charged in 30 min | 68% | 57% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | Yes | Yes |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 6 | Wi-Fi 5 |
| Bluetooth | 5.1 | 5.1 |
| NFC | Yes | Yes |
| USB | USB Type-C 3.1 | USB Type-C 2.0 |
| USB version | 3.1 | 2 |
| Video output | Yes | — |
| Dual-band GPS | Yes | — |
| Satellite navigation | GLONASS, GALILEO, BDS | GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | Yes | No |
| 3.5 mm headphone jack | No | No |
| Loudspeaker loudness | -22.5 LUFS | — |
| Fingerprint sensor | Under display | Under display |
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Software | ||
| OS at launch | Android 10 | Android 10 |
| Platform | Android | Android |
| Interface | OxygenOS 13 | Funtouch 10.0 |
