OnePlus 15 vs Xiaomi 15 Ultra
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $799 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 74/100 (a 11-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 6000); the OnePlus 15 is faster in AnTuTu (3,621,671 vs 3,030,376); the OnePlus 15 is thinner (8.1mm vs 9.4mm).
OnePlus 15
Xiaomi 15 Ultra
- Higher AnTuTu: 3621671 vs 3030376
- Bigger battery: 6500 vs 6000 mAh
- Lighter: 213g vs 225g
- Cheaper: $799 vs $999
- Higher performance (94/100 vs 92/100)
- Longer battery life (86/100 vs 80/100)
- Better portability (50/100 vs 29/100)
- Better Geekbench Single: 3050 vs 3041
- Better Geekbench Multi: 10200 vs 9494
- Better camera (87/100 vs 37/100)
- Better display (90/100 vs 85/100)
- Better value for money (82/100 vs 60/100)
Comparing the OnePlus 15 vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 11 points higher (85/100 vs 74/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 37/100). In the "value for money" category, the Xiaomi 15 Ultra leads (82/100 vs 60/100). In the "performance" category, the OnePlus 15 and the Xiaomi 15 Ultra are nearly equal (94/100 vs 92/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 85/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the OnePlus 15 (87/100 vs 37/100). In the "battery" category, the OnePlus 15 is a bit better (86/100 vs 80/100). In the "portability" category, the OnePlus 15 notably outperforms the Xiaomi 15 Ultra (50/100 vs 29/100). In the "value for money" category, the Xiaomi 15 Ultra notably outperforms the OnePlus 15 (82/100 vs 60/100).
| Specification | OnePlus 15 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3621671 | 3030376 | |
| Geekbench Single | 3041 | 3050 | |
| Geekbench Multi | 9494 | 10200 | |
| Display | 6.8" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | — | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6500 mAh | 6000 mAh | |
| Charging | — | 90W | |
| Wireless charging | 50W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | — | Android 15 / HyperOS 2 | |
| Brightness (peak) | 1800 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 161.4×76.7×8.1 mm | 161.3×75.3×9.4 mm | |
| Weight | 213 g | 225 g | |
| Price | $799 | $999 |
OnePlus 15
- Main: 50MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
OnePlus 15
- 6.8" AMOLED
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
OnePlus 15
- 6500 mAh
- Wireless: 50W
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared OnePlus 15 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
OnePlus 15 leads Xiaomi 15 Ultra by 19.5% in our overall performance rating.
Price difference: $200. OnePlus 15 is cheaper by $200.
performance
In the "performance" category, the OnePlus 15 and the Xiaomi 15 Ultra are nearly equal (94/100 vs 92/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 85/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the OnePlus 15 (87/100 vs 37/100).
battery
In the "battery" category, the OnePlus 15 is a bit better (86/100 vs 80/100).
portability
In the "portability" category, the OnePlus 15 notably outperforms the Xiaomi 15 Ultra (50/100 vs 29/100).
value for money
In the "value for money" category, the Xiaomi 15 Ultra notably outperforms the OnePlus 15 (82/100 vs 60/100).
Which is better: the OnePlus 15 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is noticeably better than the OnePlus 15 — the overall rating gap is 11 points.
What is the rating of the OnePlus 15 and the Xiaomi 15 Ultra?
The OnePlus 15 has a MobileRank rating of 74/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the OnePlus 15 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 37/100).
Should you choose the OnePlus 15 over the Xiaomi 15 Ultra?
The OnePlus 15 is a better fit for gamers and power users, those who care about battery life. 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.