OnePlus 15 vs Xiaomi Mi 9
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi Mi 9 (2019) runs on the Qualcomm Snapdragon 855; estimated prices are $799 and $400. By overall MobileRank rating, the OnePlus 15 leads — 61/100 vs 19/100 (a 42-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 3300); the main camera is 50 MP vs 48 MP; the OnePlus 15 is faster in AnTuTu (3,621,671 vs 824,513); the Xiaomi Mi 9 is noticeably lighter (173g vs 213g).
OnePlus 15
Xiaomi Mi 9
- Higher AnTuTu: 3621671 vs 824513
- Better Geekbench Single: 3050 vs 968
- Better Geekbench Multi: 9300 vs 2731
- Bigger battery: 6500 vs 3300 mAh
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 120Hz vs 60Hz
- Higher performance (77/100 vs 1/100)
- Longer battery life (48/100 vs 5/100)
- Better display (100/100 vs 0/100)
- Lighter: 173g vs 213g
- Cheaper: $400 vs $799
- Better camera (39/100 vs 34/100)
- Better design/ergonomics (83/100 vs 33/100)
- Better value for money (82/100 vs 55/100)
Comparing the OnePlus 15 vs the Xiaomi Mi 9, the OnePlus 15 scores 42 points higher (61/100 vs 19/100). In the "performance" category, the OnePlus 15 leads (77/100 vs 1/100). In the "battery" category, the OnePlus 15 leads (48/100 vs 5/100). In the "value for money" category, the Xiaomi Mi 9 leads (82/100 vs 55/100). In the "performance" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (77/100 vs 1/100). In the "display" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (100/100 vs 0/100). In the "camera" category, the Xiaomi Mi 9 is a bit better (39/100 vs 34/100). In the "battery" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (48/100 vs 5/100). In the "design" category, the Xiaomi Mi 9 significantly outperforms the OnePlus 15 (83/100 vs 33/100). In the "value for money" category, the Xiaomi Mi 9 notably outperforms the OnePlus 15 (82/100 vs 55/100).
| Specification | OnePlus 15 | Xiaomi Mi 9 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 855 | |
| AnTuTu | 3621671 | 824513 | |
| Geekbench Single | 3050 | 968 | |
| Geekbench Multi | 9300 | 2731 | |
| Display | 6.8" AMOLED | 6.4" AMOLED | |
| Resolution | — | 2340x1080 | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 6500 mAh | 3300 mAh | |
| Charging | — | 27W | |
| Wireless charging | 0W | 20W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 0 MP | 16 MP | |
| Telephoto | 0 MP | 12 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB | 64GB / 128GB | |
| OS | — | Android 9 | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 161.4×76.7×8.1 mm | 157.5×74.7×7.6 mm | |
| Weight | 213 g | 173 g | |
| Price | $799 | $400 |
OnePlus 15
- Main: 50MP
- Front: 32MP
Xiaomi Mi 9
- Main: 48MP f/1.75
- Ultrawide: 16MP
- Telephoto: 12MP
- Front: 20MP
OnePlus 15
- 6.8" AMOLED
- Refresh rate: 120 Hz
Xiaomi Mi 9
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
OnePlus 15
- 6500 mAh
- No wireless charging
Xiaomi Mi 9
- 3300 mAh
- Wired: 27W
- Wireless: 20W
We compared OnePlus 15 and Xiaomi Mi 9, covering their specs and all relevant benchmarks.
OnePlus 15 leads Xiaomi Mi 9 by 339.2% in our overall performance rating.
Price difference: $399. Xiaomi Mi 9 is cheaper by $399.
performance
In the "performance" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (77/100 vs 1/100).
display
In the "display" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (100/100 vs 0/100).
camera
In the "camera" category, the Xiaomi Mi 9 is a bit better (39/100 vs 34/100).
battery
In the "battery" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (48/100 vs 5/100).
design
In the "design" category, the Xiaomi Mi 9 significantly outperforms the OnePlus 15 (83/100 vs 33/100).
value for money
In the "value for money" category, the Xiaomi Mi 9 notably outperforms the OnePlus 15 (82/100 vs 55/100).
Which is better: the OnePlus 15 or the Xiaomi Mi 9?
The OnePlus 15 significantly outperforms the Xiaomi Mi 9 by 42 points (61/100 vs 19/100).
What is the rating of the OnePlus 15 and the Xiaomi Mi 9?
The OnePlus 15 has a MobileRank rating of 61/100, the Xiaomi Mi 9 — 19/100.
Which has the better camera: the OnePlus 15 or the Xiaomi Mi 9?
The Xiaomi Mi 9 leads on camera score (39/100 vs 34/100).
Which is more powerful: the OnePlus 15 or the Xiaomi Mi 9?
The OnePlus 15 leads on performance (77/100 vs 1/100).
Should you choose the OnePlus 15 over the Xiaomi Mi 9?
The OnePlus 15 is a better fit for active users. The Xiaomi Mi 9 is a better fit for budget-conscious buyers.