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- Galaxy A51 5G vs Mi 8
Samsung Galaxy A51 5G vs Xiaomi Mi 8
What Galaxy A51 5G does better (6) and where Mi 8 wins (4) — every spec side by side.
vs
5.0Display6.6
2.9Battery2.5
7.1Features5.0
Dimensions
Size comparison
Galaxy A51 5GMi 8
| Galaxy A51 5G | Mi 8 | Difference | |
|---|---|---|---|
| Height | 158.9 mm | 154.9 mm | +4 mm |
| Width | 73.6 mm | 74.8 mm | −1.2 mm |
| Thickness | 8.7 mm | 7.6 mm | +1.1 mm |
| Weight | 187 g | 175 g | +12 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Galaxy A51 5G better than Mi 8?
- Battery capacity4,500 mAh vs 3,400 mAh+32%
- 5GYes · Mi 8: No
- RAM8 GB vs 6 GB+33%
- Memory card slotYes · Mi 8: No
- 3.5 mm headphone jackYes · Mi 8: No
- Screen size6.5″ vs 6.2″+5%
Why is Mi 8 better than Galaxy A51 5G?
- Peak brightness400 nits vs 600 nits+50%
- CPU frequency2.2 GHz vs 2.8 GHz+27%
- Weight187 g vs 175 g+7%
- Thickness8.7 mm vs 7.6 mm+14%
Specifications
Side by side
| Design | ||
| Weight | 187 g | 175 g |
| Thickness | 8.7 mm | 7.6 mm |
| Height | 158.9 mm | 154.9 mm |
| Width | 73.6 mm | 74.8 mm |
| Frame | Aluminium | Aluminium |
| Back | Plastic | Glass |
| Glass protection | Corning Gorilla Glass 3 | Gorilla Glass 5 |
| Colours | Prism Cube Black, Prism Cube White, Prism Cube Pink | — |
| Display | ||
| Screen size | 6.5″ | 6.2″ |
| Panel | Super AMOLED | AMOLED |
| OLED panel | Yes | Yes |
| Resolution (width) | 1,080 px | 1,080 px |
| Resolution (height) | 2,400 px | 2,248 px |
| Pixel density | 405 ppi | 402 ppi |
| Refresh rate | 60 Hz | — |
| Peak brightness | 400 nits | 600 nits |
| Measured brightness | 642 nits | — |
| Screen-to-body ratio | 87.2% | 88.5% |
| HDR | — | Yes |
| Performance | ||
| Chipset | Exynos 980 | Qualcomm Snapdragon 845 |
| Chip maker | Exynos | Qualcomm |
| Process | 8 nm | — |
| CPU cores | 8 | 8 |
| CPU frequency | 2.2 GHz | 2.8 GHz |
| GPU | Mali-G76 MP5 | Adreno 630 |
| AnTuTu score | 316,007 | — |
| Geekbench 6 (multi-core) | 1,867 | — |
| Memory | ||
| RAM | 8 GB | 6 GB |
| Storage (max) | 128 GB | — |
| Storage (base) | 128 GB | — |
| Storage type | UFS 2.1 | — |
| Memory card slot | Yes | No |
| Camera | ||
| Main camera | 48 MP | — |
| Main camera aperture | f/2 | — |
| Main sensor size | 1/2.0" | — |
| Rear cameras | 2 | — |
| Optical stabilisation | No | — |
| Ultra-wide camera | Yes | — |
| Telephoto camera | No | — |
| Optical zoom | — | 2× |
| Max video | 4K | — |
| 4K video frame rate | 30 fps | — |
| Selfie camera | 32 MP | — |
| 4K selfie video | Yes | — |
| Battery | ||
| Battery capacity | 4,500 mAh | 3,400 mAh |
| Battery type | Li-Po | — |
| Wired charging | 15 W | — |
| Charged in 30 min | 30% | — |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | Yes | No |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5 | 5 |
| NFC | Yes | Yes |
| USB | USB Type-C 2.0 | USB Type-C |
| USB version | 2 | — |
| Dual-band GPS | — | Yes |
| Satellite navigation | GLONASS, GALILEO, BDS | GPS, GLONASS, GALILEO, BDS, QZSS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | No |
| Loudspeaker loudness | -29.5 LUFS | — |
| Fingerprint sensor | Under display | Rear |
| Barometer | — | Yes |
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass | proximity, accelerometer, gyro, compass, barometer, fingerprint |
| SAR (head) | 0.5 W/kg | — |
| Software | ||
| OS at launch | Android 10 | Android 8.1 Oreo |
| Platform | Android | Android |
| Interface | One UI 5 | Miui V10 |
