OPPO Reno 15 vs Xiaomi 15 Ultra
The OPPO Reno 15 (2026) runs on the Qualcomm Snapdragon 7 Gen 4, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $350 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 63/100 (a 22-point difference). Key differences: the OPPO Reno 15 has the bigger battery (6500 mAh vs 6000); the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 1,394,716); the OPPO Reno 15 is noticeably lighter (186g vs 225g).
Profile comparison
Category scores
OPPO Reno 15
Xiaomi 15 Ultra
What makes OPPO Reno 15 better?
- Bigger battery: 6500 vs 6000 mAh
- Lighter: 186g vs 225g
- Cheaper at launch: $350 vs $999
- Better portability (73/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Higher AnTuTu: 3030376 vs 1394716
- Better Geekbench Single: 3050 vs 1270
- Better Geekbench Multi: 10200 vs 4106
- Faster charging: 90W vs 80W
- Higher performance (92/100 vs 66/100)
- Better camera (87/100 vs 40/100)
- Longer battery life (80/100 vs 78/100)
- Better display (90/100 vs 80/100)
Comparison verdict
Comparing the OPPO Reno 15 vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 22 points higher (85/100 vs 63/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 66/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 40/100). Value score: OPPO Reno 15 — 60/100, Xiaomi 15 Ultra — 80/100; 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 Xiaomi 15 Ultra notably outperforms the OPPO Reno 15 (92/100 vs 66/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 80/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the OPPO Reno 15 (87/100 vs 40/100). In the "battery" category, the Xiaomi 15 Ultra and the OPPO Reno 15 are nearly equal (80/100 vs 78/100). In the "portability" category, the OPPO Reno 15 significantly outperforms the Xiaomi 15 Ultra (73/100 vs 29/100).
Specs comparison
| Specification | OPPO Reno 15 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 7 Gen 4 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1394716 | 3030376 | |
| Geekbench Single | 1270 | 3050 | |
| Geekbench Multi | 4106 | 10200 | |
| Display | 6.7" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 2412x1080 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6500 mAh | 6000 mAh | |
| Charging | 80W | 90W | |
| Wireless charging | — | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 8GB / 12GB | 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 15 / HyperOS 2 | |
| Brightness (peak) | — | 3200 nits | |
| NFC | — | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 161.3×75.3×9.4 mm | |
| Weight | 186 g | 225 g | |
| Launch price | $350 | $999 |
Camera comparison
OPPO Reno 15
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
OPPO Reno 15
- 6.7" AMOLED
- Resolution: 2412x1080
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
OPPO Reno 15
- 6500 mAh
- Wired: 80W
- Wireless charging: no data
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared OPPO Reno 15 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads OPPO Reno 15 by 54.0% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $649. OPPO Reno 15 was $649 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Xiaomi 15 Ultra notably outperforms the OPPO Reno 15 (92/100 vs 66/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 80/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the OPPO Reno 15 (87/100 vs 40/100).
battery
In the "battery" category, the Xiaomi 15 Ultra and the OPPO Reno 15 are nearly equal (80/100 vs 78/100).
portability
In the "portability" category, the OPPO Reno 15 significantly outperforms the Xiaomi 15 Ultra (73/100 vs 29/100).
Frequently asked questions
Which is better: the OPPO Reno 15 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the OPPO Reno 15 by 22 points (85/100 vs 63/100).
What is the rating of the OPPO Reno 15 and the Xiaomi 15 Ultra?
The OPPO Reno 15 has a MobileRank rating of 63/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the OPPO Reno 15 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 40/100).
Which is more powerful: the OPPO Reno 15 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 66/100).
Should you choose the OPPO Reno 15 over the Xiaomi 15 Ultra?
The OPPO Reno 15 is a better fit for active 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.