OnePlus Ace 6 Ultra vs Xiaomi 12S Ultra
The OnePlus Ace 6 Ultra (2026) runs on the MediaTek Dimensity 9500, while the Xiaomi 12S Ultra (2022) runs on the Qualcomm Snapdragon 8+ Gen 1. By overall MobileRank rating, the OnePlus Ace 6 Ultra leads — 66/100 vs 49/100 (a 17-point difference). Key differences: the OnePlus Ace 6 Ultra has the bigger battery (8600 mAh vs 4800); the main camera is 50 MP vs 3 MP; the OnePlus Ace 6 Ultra is faster in AnTuTu (3,429,868 vs 1,627,862).
OnePlus Ace 6 Ultra
Xiaomi 12S Ultra
- Higher AnTuTu: 3429868 vs 1627862
- Better Geekbench Single: 3228 vs 1761
- Better Geekbench Multi: 9553 vs 4688
- Bigger battery: 8600 vs 4800 mAh
- Faster charging: 120W vs 67W
- Better main camera: 50MP vs 3MP
- Higher refresh rate: 165Hz vs 120Hz
- Lighter: 217g vs 225g
- Higher performance (76/100 vs 24/100)
- Longer battery life (82/100 vs 43/100)
- Better design/ergonomics (28/100 vs 18/100)
- Better value for money (72/100 vs 55/100)
- Better camera (70/100 vs 31/100)
Comparing the OnePlus Ace 6 Ultra vs the Xiaomi 12S Ultra, the OnePlus Ace 6 Ultra scores 17 points higher (66/100 vs 49/100). In the "performance" category, the OnePlus Ace 6 Ultra leads (76/100 vs 24/100). In the "camera" category, the Xiaomi 12S Ultra leads (70/100 vs 31/100). In the "battery" category, the OnePlus Ace 6 Ultra leads (82/100 vs 43/100). In the "value for money" category, the OnePlus Ace 6 Ultra leads (72/100 vs 55/100). In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi 12S Ultra (76/100 vs 24/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Xiaomi 12S Ultra significantly outperforms the OnePlus Ace 6 Ultra (70/100 vs 31/100). In the "battery" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi 12S Ultra (82/100 vs 43/100). In the "design" category, the OnePlus Ace 6 Ultra is a bit better (28/100 vs 18/100). In the "value for money" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi 12S Ultra (72/100 vs 55/100).
| Specification | OnePlus Ace 6 Ultra | Xiaomi 12S Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Qualcomm Snapdragon 8+ Gen 1 | |
| AnTuTu | 3429868 | 1627862 | |
| Geekbench Single | 3228 | 1761 | |
| Geekbench Multi | 9553 | 4688 | |
| Display | 6.8" AMOLED | 6.7" LTPO2 AMOLED | |
| Resolution | 1272x2772 | 1440x3200 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8600 mAh | 4800 mAh | |
| Charging | 120W | 67W | |
| DXOMark (camera) | — | 136 | |
| Main camera | 50 MP | 3 MP | |
| Ultrawide | 8 MP | 48 MP | |
| Telephoto | 0 MP | 48 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 16 | Android 12, MIUI 13 | |
| Brightness (peak) | 1800 nits | 1500 nits | |
| NFC | yes | yes | |
| Protection | IP66 | IP68 | |
| Dimensions | 162.5×77.5×8.5 mm | 163.2×75.0×9.1 mm | |
| Weight | 217 g | 225 g | |
| Price | $555 | — |
OnePlus Ace 6 Ultra
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Xiaomi 12S Ultra
- Main: 3MP f/f/1.9
- Ultrawide: 48MP
- Telephoto: 48MP
- Front: 32MP
OnePlus Ace 6 Ultra
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 165 Hz
Xiaomi 12S Ultra
- 6.7" LTPO2 AMOLED
- Resolution: 1440x3200
- Refresh rate: 120 Hz
OnePlus Ace 6 Ultra
- 8600 mAh
- Wired: 120W
- No wireless charging
Xiaomi 12S Ultra
- 4800 mAh
- Wired: 67W
- No wireless charging
We compared OnePlus Ace 6 Ultra and Xiaomi 12S Ultra, covering their specs and all relevant benchmarks.
OnePlus Ace 6 Ultra leads Xiaomi 12S Ultra by 110.7% in our overall performance rating.
Xiaomi 12S Ultra
Price unknownperformance
In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi 12S Ultra (76/100 vs 24/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Xiaomi 12S Ultra significantly outperforms the OnePlus Ace 6 Ultra (70/100 vs 31/100).
battery
In the "battery" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi 12S Ultra (82/100 vs 43/100).
design
In the "design" category, the OnePlus Ace 6 Ultra is a bit better (28/100 vs 18/100).
value for money
In the "value for money" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi 12S Ultra (72/100 vs 55/100).
Which is better: the OnePlus Ace 6 Ultra or the Xiaomi 12S Ultra?
The OnePlus Ace 6 Ultra is noticeably better than the Xiaomi 12S Ultra — the overall rating gap is 17 points.
What is the rating of the OnePlus Ace 6 Ultra and the Xiaomi 12S Ultra?
The OnePlus Ace 6 Ultra has a MobileRank rating of 66/100, the Xiaomi 12S Ultra — 49/100.
Which has the better camera: the OnePlus Ace 6 Ultra or the Xiaomi 12S Ultra?
The Xiaomi 12S Ultra leads on camera score (70/100 vs 31/100).
Which is more powerful: the OnePlus Ace 6 Ultra or the Xiaomi 12S Ultra?
The OnePlus Ace 6 Ultra leads on performance (76/100 vs 24/100).
Should you choose the OnePlus Ace 6 Ultra over the Xiaomi 12S Ultra?
The OnePlus Ace 6 Ultra is a better fit for active users, those who care about battery life. The Xiaomi 12S Ultra is a better fit for everyday use.