Category Breakdown
Camera
≈ Tie
Main sensor resolution
≈ TieBattery
Poco M8x
Battery capacity (7,900 mAh)
WinsCharging
12S Ultra
Wired charging speed (67W)
WinsPerformance
12S Ultra
AnTuTu benchmark (1,039,412 pts)
WinsDisplay
Poco M8x
Screen size (6.9")
WinsWeight
12S Ultra
Total weight (225g)
WinsValue
12S Ultra
Specs-per-dollar (server score) (9.2/10)
WinsFull Spec Comparison
| Spec | 12S Ultra | Poco M8x |
|---|---|---|
Display | ||
| 6.73" | 6.9" | |
| 1,440 × 3,200 | 720 × 1,600 | |
| LTPO2 AMOLED | IPS LCD | |
| 120Hz | 120Hz | |
| 1,500 nits | — | |
Camera | ||
| 50 MP | 50 MP | |
| Triple | Dual | |
| 5x | — | |
| Yes | No | |
| Fingerprint (under display, Fingerprint (under display, optical), accelerometer, barometer, compass, gyro, optical) | Fingerprint (side-mounted), accelerometer, compass, proximity | |
Performance | ||
| Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) | Snapdragon 4 Gen 5 | |
| 1,039,412 | — | |
| 12 GB | 6 GB | |
| 512 GB | 128 GB | |
Battery | ||
| 4,860 mAh | 7,900 mAh | |
| 67W | 45W | |
| 50W | No | |
Build | ||
| 225g | 232g | |
| 9.1mm | 8.8mm | |
| Glass front (Gorilla Glass Victus), eco leather back, aluminum frame | Glass front (Gorilla Glass 7i), plastic back or silicone polymer (eco leather), plastic frame | |
| IP68 | none | |
| Flagship | Budget | |
Who Each Phone Is Really For
If your priorities differ from the verdict above, start here.
Best overall value
Xiaomi 12S Ultra
Highest value score — most specs per dollar.
Budget pick
Xiaomi Poco M8x
Lowest price while still competitive.
Photography
Xiaomi Poco M8x
Highest resolution main camera.