OnePlus 15 vs Xiaomi 12S Ultra
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi 12S Ultra (2022) runs on the Qualcomm Snapdragon 8+ Gen 1. By overall MobileRank rating, the OnePlus 15 leads — 61/100 vs 49/100 (a 12-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 4800); the main camera is 50 MP vs 3 MP; the OnePlus 15 is faster in AnTuTu (3,621,671 vs 1,627,862); the OnePlus 15 is thinner (8.1mm vs 9.1mm).
OnePlus 15
Xiaomi 12S Ultra
- Higher AnTuTu: 3621671 vs 1627862
- Better Geekbench Single: 3050 vs 1761
- Better Geekbench Multi: 9300 vs 4688
- Bigger battery: 6500 vs 4800 mAh
- Better main camera: 50MP vs 3MP
- Lighter: 213g vs 225g
- Higher performance (77/100 vs 24/100)
- Longer battery life (48/100 vs 43/100)
- Better design/ergonomics (33/100 vs 18/100)
- Better camera (70/100 vs 34/100)
Comparing the OnePlus 15 vs the Xiaomi 12S Ultra, the OnePlus 15 scores 12 points higher (61/100 vs 49/100). In the "performance" category, the OnePlus 15 leads (77/100 vs 24/100). In the "camera" category, the Xiaomi 12S Ultra leads (70/100 vs 34/100). In the "performance" category, the OnePlus 15 significantly outperforms the Xiaomi 12S Ultra (77/100 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 15 (70/100 vs 34/100). In the "battery" category, the OnePlus 15 is a bit better (48/100 vs 43/100). In the "design" category, the OnePlus 15 notably outperforms the Xiaomi 12S Ultra (33/100 vs 18/100). In the "value for money" category, both devices are on the same level — 55/100.
| Specification | OnePlus 15 | Xiaomi 12S Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8+ Gen 1 | |
| AnTuTu | 3621671 | 1627862 | |
| Geekbench Single | 3050 | 1761 | |
| Geekbench Multi | 9300 | 4688 | |
| Display | 6.8" AMOLED | 6.7" LTPO2 AMOLED | |
| Resolution | — | 1440x3200 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6500 mAh | 4800 mAh | |
| Charging | — | 67W | |
| DXOMark (camera) | — | 136 | |
| Main camera | 50 MP | 3 MP | |
| Ultrawide | 0 MP | 48 MP | |
| Telephoto | 0 MP | 48 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB | 256GB / 512GB | |
| OS | — | Android 12, MIUI 13 | |
| Brightness (peak) | 1800 nits | 1500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 161.4×76.7×8.1 mm | 163.2×75.0×9.1 mm | |
| Weight | 213 g | 225 g | |
| Price | $799 | — |
OnePlus 15
- Main: 50MP
- Front: 32MP
Xiaomi 12S Ultra
- Main: 3MP f/f/1.9
- Ultrawide: 48MP
- Telephoto: 48MP
- Front: 32MP
OnePlus 15
- 6.8" AMOLED
- Refresh rate: 120 Hz
Xiaomi 12S Ultra
- 6.7" LTPO2 AMOLED
- Resolution: 1440x3200
- Refresh rate: 120 Hz
OnePlus 15
- 6500 mAh
- No wireless charging
Xiaomi 12S Ultra
- 4800 mAh
- Wired: 67W
- No wireless charging
We compared OnePlus 15 and Xiaomi 12S Ultra, covering their specs and all relevant benchmarks.
OnePlus 15 leads Xiaomi 12S Ultra by 122.5% in our overall performance rating.
Xiaomi 12S Ultra
Price unknownperformance
In the "performance" category, the OnePlus 15 significantly outperforms the Xiaomi 12S Ultra (77/100 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 15 (70/100 vs 34/100).
battery
In the "battery" category, the OnePlus 15 is a bit better (48/100 vs 43/100).
design
In the "design" category, the OnePlus 15 notably outperforms the Xiaomi 12S Ultra (33/100 vs 18/100).
value for money
In the "value for money" category, both devices are on the same level — 55/100.
Which is better: the OnePlus 15 or the Xiaomi 12S Ultra?
The OnePlus 15 is noticeably better than the Xiaomi 12S Ultra — the overall rating gap is 12 points.
What is the rating of the OnePlus 15 and the Xiaomi 12S Ultra?
The OnePlus 15 has a MobileRank rating of 61/100, the Xiaomi 12S Ultra — 49/100.
Which has the better camera: the OnePlus 15 or the Xiaomi 12S Ultra?
The Xiaomi 12S Ultra leads on camera score (70/100 vs 34/100).
Which is more powerful: the OnePlus 15 or the Xiaomi 12S Ultra?
The OnePlus 15 leads on performance (77/100 vs 24/100).
Should you choose the OnePlus 15 over the Xiaomi 12S Ultra?
The OnePlus 15 is a better fit for active users. The Xiaomi 12S Ultra is a better fit for everyday use.