POCO M8x 5G vs vivo X100 Ultra
20Performance64.4
50.5Display67.6
29Camera75.8
71.3Battery75.5
62.7Features86.7
4 spec wins — POCO M8x 5G6 spec wins — vivo X100 Ultra
InnoReviews verdict
vivo X100 Ultra wins this phone face-off, 71.8 to 42.4, pulling ahead mainly in camera (+47) and performance (+44). POCO M8x 5G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the POCO M8x 5G
- 44% higher capacity: 7,900 mAh vs 5,500 mAh
- Has 3.5mm jack — the other doesn't
Reasons to pick the vivo X100 Ultra
- Stronger performance score: 64 vs 20
- Stronger display score: 68 vs 51
- Stronger camera score: 76 vs 29
- Stronger battery score: 76 vs 71
- Stronger features score: 87 vs 63
Display
| Spec | POCO M8x 5G | vivo X100 Ultra |
|---|---|---|
| Screen size | 6.9 ″+2% | 6.78 ″ |
| Panel type | LCD | LTPO AMOLED |
| Resolution | 720x1600 | 1440x3200 |
| Pixel density | 254 ppi | 517 ppi+104% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | — | 3,000 nits |
| Screen-to-body | — | 89.8 % |
Performance
| Spec | POCO M8x 5G | vivo X100 Ultra |
|---|---|---|
| Chipset | Qualcomm Snapdragon 4 Gen 5 | Qualcomm Snapdragon 8 Gen 3 |
| RAM (max) | 6 GB | 16 GB+167% |
| Storage options | 128GB | 256/512GB/1TB |
| Storage type | UFS 2.2 | UFS 4.0 |
Camera
| Spec | POCO M8x 5G | vivo X100 Ultra |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.8 | f/1.75 |
| Ultra-wide | — | 50 MP |
| Telephoto | — | 200 MP |
| Optical zoom | — | 3.7 x |
| Max video | — | 8K@30fps |
| Front camera | 8 MP | 50 MP+525% |
| OIS | — | Yes |
Battery
| Spec | POCO M8x 5G | vivo X100 Ultra |
|---|---|---|
| Capacity | 7,900 mAh+44% | 5,500 mAh |
| Wired charging | 45 W | 80 W+78% |
| Wireless charging | 0 W | 30 W |
| Active use endurance | — | 12.9 h |
Design
| Spec | POCO M8x 5G | vivo X100 Ultra |
|---|---|---|
| Weight | 232 g | 229 g+1% |
| Thickness | 8.8 mm+5% | 9.2 mm |
| IP rating | IP64 | IP68/IP69 |
| Frame material | — | Aluminum |
Connectivity
| Spec | POCO M8x 5G | vivo X100 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | — | Wi-Fi 7 |
| Bluetooth | 5.1 | 5.4 |
| NFC | — | Yes |
| USB | — | USB-C 3.2 |
| eSIM | — | No |
Software
| Spec | POCO M8x 5G | vivo X100 Ultra |
|---|---|---|
| OS at launch | Android 16 (HyperOS 3) | Android 14 (OriginOS 4) |
| OS update pledge | 4 years | — |
Audio
| Spec | POCO M8x 5G | vivo X100 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | Yes | No |