OnePlus 15 vs Xiaomi Mi 9
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Xiaomi Mi 9 (2019) runs on the Qualcomm Snapdragon 855; launch prices were $799 and $400. By overall MobileRank rating, the OnePlus 15 leads — 86/100 vs 47/100 (a 39-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 (3,606,149 vs 824,513); the Xiaomi Mi 9 is noticeably lighter (173g vs 213g).
Profile comparison
Category scores
OnePlus 15
Xiaomi Mi 9
What makes OnePlus 15 better?
- Higher AnTuTu: 3606149 vs 824513
- Better Geekbench Single: 3639 vs 968
- Better Geekbench Multi: 11047 vs 2731
- Bigger battery: 6500 vs 3300 mAh
- Faster charging: 120W vs 27W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 120Hz vs 60Hz
- Faster wireless charging: 50W vs 20W
- Higher performance (97/100 vs 54/100)
- Better camera (78/100 vs 44/100)
- Longer battery life (89/100 vs 22/100)
- Better display (84/100 vs 56/100)
What makes Xiaomi Mi 9 better?
- Lighter: 173g vs 213g
- Cheaper at launch: $400 vs $799
- Better portability (79/100 vs 50/100)
Comparison verdict
Comparing the OnePlus 15 vs the Xiaomi Mi 9, the OnePlus 15 scores 39 points higher (86/100 vs 47/100). In the "performance" category, the OnePlus 15 leads (97/100 vs 54/100). In the "camera" category, the OnePlus 15 leads (78/100 vs 44/100). In the "battery" category, the OnePlus 15 leads (89/100 vs 22/100). Value score: OnePlus 15 — 86/100, Xiaomi Mi 9 — 22/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (97/100 vs 54/100). In the "display" category, the OnePlus 15 notably outperforms the Xiaomi Mi 9 (84/100 vs 56/100). In the "camera" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (78/100 vs 44/100). In the "battery" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (89/100 vs 22/100). In the "portability" category, the Xiaomi Mi 9 notably outperforms the OnePlus 15 (79/100 vs 50/100).
Specs comparison
| Specification | OnePlus 15 | Xiaomi Mi 9 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 855 | |
| AnTuTu | 3606149 | 824513 | |
| Geekbench Single | 3639 | 968 | |
| Geekbench Multi | 11047 | 2731 | |
| Display | 6.8" AMOLED | 6.4" AMOLED | |
| Resolution | 1272x2772 | 2340x1080 | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 6500 mAh | 3300 mAh | |
| Charging | 120W | 27W | |
| Wireless charging | 50W | 20W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 50 MP | 16 MP | |
| Telephoto | 50 MP | 12 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB | 64GB / 128GB | |
| OS | Android 16, OxygenOS 16 (Global), ColorOS 16 (China) | 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 | |
| Launch price | $799 | $400 |
Camera comparison
OnePlus 15
- Main: 50MP f/1.8
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Xiaomi Mi 9
- Main: 48MP f/1.75
- Ultrawide: 16MP
- Telephoto: 12MP
- Front: 20MP
Display comparison
OnePlus 15
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 120 Hz
Xiaomi Mi 9
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Battery and charging
OnePlus 15
- 6500 mAh
- Wired: 120W
- Wireless: 50W
Xiaomi Mi 9
- 3300 mAh
- Wired: 27W
- Wireless: 20W
Overall performance score
We compared OnePlus 15 and Xiaomi Mi 9, covering their specs and all relevant benchmarks.
OnePlus 15 leads Xiaomi Mi 9 by 337.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $399. Xiaomi Mi 9 was $399 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (97/100 vs 54/100).
display
In the "display" category, the OnePlus 15 notably outperforms the Xiaomi Mi 9 (84/100 vs 56/100).
camera
In the "camera" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (78/100 vs 44/100).
battery
In the "battery" category, the OnePlus 15 significantly outperforms the Xiaomi Mi 9 (89/100 vs 22/100).
portability
In the "portability" category, the Xiaomi Mi 9 notably outperforms the OnePlus 15 (79/100 vs 50/100).
Frequently asked questions
Which is better: the OnePlus 15 or the Xiaomi Mi 9?
The OnePlus 15 significantly outperforms the Xiaomi Mi 9 by 39 points (86/100 vs 47/100).
What is the rating of the OnePlus 15 and the Xiaomi Mi 9?
The OnePlus 15 has a MobileRank rating of 86/100, the Xiaomi Mi 9 — 47/100.
Which has the better camera: the OnePlus 15 or the Xiaomi Mi 9?
The OnePlus 15 leads on camera score (78/100 vs 44/100).
Which is more powerful: the OnePlus 15 or the Xiaomi Mi 9?
The OnePlus 15 leads on performance (97/100 vs 54/100).
Should you choose the OnePlus 15 over the Xiaomi Mi 9?
The OnePlus 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.