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 — 74/100 vs 71/100 (a 3-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).
Profile comparison
Category scores
OnePlus Ace 6 Ultra
Xiaomi 12S Ultra
What makes OnePlus Ace 6 Ultra better?
- Higher AnTuTu: 3429868 vs 1627862
- Better Geekbench Single: 3293 vs 1761
- Better Geekbench Multi: 10243 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 (94/100 vs 73/100)
- Longer battery life (82/100 vs 64/100)
- Better display (94/100 vs 90/100)
- Better portability (43/100 vs 32/100)
What makes Xiaomi 12S Ultra better?
- Better camera (70/100 vs 35/100)
Comparison verdict
Comparing the OnePlus Ace 6 Ultra vs the Xiaomi 12S Ultra, the OnePlus Ace 6 Ultra scores 3 points higher (74/100 vs 71/100). In the "performance" category, the OnePlus Ace 6 Ultra leads (94/100 vs 73/100). In the "camera" category, the Xiaomi 12S Ultra leads (70/100 vs 35/100). In the "battery" category, the OnePlus Ace 6 Ultra leads (82/100 vs 64/100). In the "performance" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi 12S Ultra (94/100 vs 73/100). In the "display" category, the OnePlus Ace 6 Ultra and the Xiaomi 12S Ultra are nearly equal (94/100 vs 90/100). In the "camera" category, the Xiaomi 12S Ultra significantly outperforms the OnePlus Ace 6 Ultra (70/100 vs 35/100). In the "battery" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi 12S Ultra (82/100 vs 64/100). In the "portability" category, the OnePlus Ace 6 Ultra is a bit better (43/100 vs 32/100).
Specs comparison
| Specification | OnePlus Ace 6 Ultra | Xiaomi 12S Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Qualcomm Snapdragon 8+ Gen 1 | |
| AnTuTu | 3429868 | 1627862 | |
| Geekbench Single | 3293 | 1761 | |
| Geekbench Multi | 10243 | 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 | |
| Wireless charging | 0W | 50W | |
| 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 | |
| Launch price | $555 | — |
Camera comparison
OnePlus Ace 6 Ultra
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Xiaomi 12S Ultra
- Main: 3MP f/1.9
- Ultrawide: 48MP
- Telephoto: 48MP
- Front: 32MP
Display comparison
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
Battery and charging
OnePlus Ace 6 Ultra
- 8600 mAh
- Wired: 120W
- No wireless charging
Xiaomi 12S Ultra
- 4800 mAh
- Wired: 67W
- Wireless: 50W
Overall performance score
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.
Benchmarks
Launch prices and where to check today's
Xiaomi 12S Ultra
Price unknownDetailed category analysis
performance
In the "performance" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi 12S Ultra (94/100 vs 73/100).
display
In the "display" category, the OnePlus Ace 6 Ultra and the Xiaomi 12S Ultra are nearly equal (94/100 vs 90/100).
camera
In the "camera" category, the Xiaomi 12S Ultra significantly outperforms the OnePlus Ace 6 Ultra (70/100 vs 35/100).
battery
In the "battery" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi 12S Ultra (82/100 vs 64/100).
portability
In the "portability" category, the OnePlus Ace 6 Ultra is a bit better (43/100 vs 32/100).
Frequently asked questions
Which is better: the OnePlus Ace 6 Ultra or the Xiaomi 12S Ultra?
The OnePlus Ace 6 Ultra edges out the Xiaomi 12S Ultra by just 3 points — the two devices are very close in overall level.
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 74/100, the Xiaomi 12S Ultra — 71/100.
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 35/100).
Which is more powerful: the OnePlus Ace 6 Ultra or the Xiaomi 12S Ultra?
The OnePlus Ace 6 Ultra leads on performance (94/100 vs 73/100).
Should you choose the OnePlus Ace 6 Ultra over the Xiaomi 12S Ultra?
The OnePlus Ace 6 Ultra is a better fit for gamers and power users, those who care about battery life. The Xiaomi 12S Ultra is a better fit for active users.