OnePlus Ace 5 Ultra vs Xiaomi 15 Ultra
The OnePlus Ace 5 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $350 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 71/100 (a 14-point difference). Key differences: the OnePlus Ace 5 Ultra has the bigger battery (6700 mAh vs 6000); the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 2,948,304); the OnePlus Ace 5 Ultra is noticeably lighter (206g vs 225g).
OnePlus Ace 5 Ultra
Xiaomi 15 Ultra
- Bigger battery: 6700 vs 6000 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 206g vs 225g
- Cheaper: $350 vs $999
- Better display (94/100 vs 90/100)
- Better portability (54/100 vs 29/100)
- Higher AnTuTu: 3030376 vs 2948304
- Better Geekbench Single: 3050 vs 2729
- Better Geekbench Multi: 10200 vs 8430
- Higher performance (92/100 vs 89/100)
- Better camera (87/100 vs 35/100)
- Longer battery life (80/100 vs 70/100)
Comparing the OnePlus Ace 5 Ultra vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 14 points higher (85/100 vs 71/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 35/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 70/100). In the "performance" category, the Xiaomi 15 Ultra and the OnePlus Ace 5 Ultra are nearly equal (92/100 vs 89/100). In the "display" category, the OnePlus Ace 5 Ultra and the Xiaomi 15 Ultra are nearly equal (94/100 vs 90/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the OnePlus Ace 5 Ultra (87/100 vs 35/100). In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 70/100). In the "portability" category, the OnePlus Ace 5 Ultra notably outperforms the Xiaomi 15 Ultra (54/100 vs 29/100). In the "value for money" category, both devices are on the same level — 82/100.
| Specification | OnePlus Ace 5 Ultra | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2948304 | 3030376 | |
| Geekbench Single | 2729 | 3050 | |
| Geekbench Multi | 8430 | 10200 | |
| Display | 6.8" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1272x2800 | 3200x1440 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 6700 mAh | 6000 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 15, ColorOS 15 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 1400 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP65 | IP68 | |
| Dimensions | 163.4×77.0×8.1 mm | 161.3×75.3×9.4 mm | |
| Weight | 206 g | 225 g | |
| Price | $350 | $999 |
OnePlus Ace 5 Ultra
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
OnePlus Ace 5 Ultra
- 6.8" AMOLED
- Resolution: 1272x2800
- Refresh rate: 144 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
OnePlus Ace 5 Ultra
- 6700 mAh
- Wired: 100W
- No wireless charging
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared OnePlus Ace 5 Ultra and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads OnePlus Ace 5 Ultra by 2.7% in our overall performance rating.
Price difference: $649. OnePlus Ace 5 Ultra is cheaper by $649.
performance
In the "performance" category, the Xiaomi 15 Ultra and the OnePlus Ace 5 Ultra are nearly equal (92/100 vs 89/100).
display
In the "display" category, the OnePlus Ace 5 Ultra and the Xiaomi 15 Ultra are nearly equal (94/100 vs 90/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the OnePlus Ace 5 Ultra (87/100 vs 35/100).
battery
In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 70/100).
portability
In the "portability" category, the OnePlus Ace 5 Ultra notably outperforms the Xiaomi 15 Ultra (54/100 vs 29/100).
value for money
In the "value for money" category, both devices are on the same level — 82/100.
Which is better: the OnePlus Ace 5 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is noticeably better than the OnePlus Ace 5 Ultra — the overall rating gap is 14 points.
What is the rating of the OnePlus Ace 5 Ultra and the Xiaomi 15 Ultra?
The OnePlus Ace 5 Ultra has a MobileRank rating of 71/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the OnePlus Ace 5 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 35/100).
Should you choose the OnePlus Ace 5 Ultra over the Xiaomi 15 Ultra?
The OnePlus Ace 5 Ultra is a better fit for gamers and power users, budget-conscious buyers. The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.