OPPO K15 Pro+ vs Xiaomi 15 Ultra
The OPPO K15 Pro+ (2026) runs on the MediaTek Dimensity 9500s, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $509 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 71/100 (a 14-point difference). Key differences: the OPPO K15 Pro+ has the bigger battery (8000 mAh vs 6000); the OPPO K15 Pro+ is faster in AnTuTu (3,121,723 vs 3,030,376); the OPPO K15 Pro+ is thinner (8.3mm vs 9.4mm).
OPPO K15 Pro+
Xiaomi 15 Ultra
- Higher AnTuTu: 3121723 vs 3030376
- Bigger battery: 8000 vs 6000 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 165Hz vs 120Hz
- Lighter: 219g vs 225g
- Cheaper: $509 vs $999
- Better display (94/100 vs 90/100)
- Better portability (44/100 vs 29/100)
- Better Geekbench Single: 3050 vs 2680
- Better Geekbench Multi: 10200 vs 8358
- Higher performance (92/100 vs 89/100)
- Better camera (87/100 vs 35/100)
- Longer battery life (80/100 vs 75/100)
- Better value for money (82/100 vs 66/100)
Comparing the OPPO K15 Pro+ vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 14 points higher (85/100 vs 71/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 35/100). In the "value for money" category, the Xiaomi 15 Ultra leads (82/100 vs 66/100). In the "performance" category, the Xiaomi 15 Ultra and the OPPO K15 Pro+ are nearly equal (92/100 vs 89/100). In the "display" category, the OPPO K15 Pro+ and the Xiaomi 15 Ultra are nearly equal (94/100 vs 90/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the OPPO K15 Pro+ (87/100 vs 35/100). In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 75/100). In the "portability" category, the OPPO K15 Pro+ notably outperforms the Xiaomi 15 Ultra (44/100 vs 29/100). In the "value for money" category, the Xiaomi 15 Ultra notably outperforms the OPPO K15 Pro+ (82/100 vs 66/100).
| Specification | OPPO K15 Pro+ | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500s | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3121723 | 3030376 | |
| Geekbench Single | 2680 | 3050 | |
| Geekbench Multi | 8358 | 10200 | |
| Display | 6.8" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 2772x1272 | 3200x1440 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8000 mAh | 6000 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 12GB | 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 1800 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 162.4×77.5×8.3 mm | 161.3×75.3×9.4 mm | |
| Weight | 219 g | 225 g | |
| Price | $509 | $999 |
OPPO K15 Pro+
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
OPPO K15 Pro+
- 6.8" AMOLED
- Resolution: 2772x1272
- Refresh rate: 165 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
OPPO K15 Pro+
- 8000 mAh
- Wired: 100W
- No wireless charging
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared OPPO K15 Pro+ and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
OPPO K15 Pro+ leads Xiaomi 15 Ultra by 3.0% in our overall performance rating.
Price difference: $490. OPPO K15 Pro+ is cheaper by $490.
performance
In the "performance" category, the Xiaomi 15 Ultra and the OPPO K15 Pro+ are nearly equal (92/100 vs 89/100).
display
In the "display" category, the OPPO K15 Pro+ and the Xiaomi 15 Ultra are nearly equal (94/100 vs 90/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the OPPO K15 Pro+ (87/100 vs 35/100).
battery
In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 75/100).
portability
In the "portability" category, the OPPO K15 Pro+ notably outperforms the Xiaomi 15 Ultra (44/100 vs 29/100).
value for money
In the "value for money" category, the Xiaomi 15 Ultra notably outperforms the OPPO K15 Pro+ (82/100 vs 66/100).
Which is better: the OPPO K15 Pro+ or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is noticeably better than the OPPO K15 Pro+ — the overall rating gap is 14 points.
What is the rating of the OPPO K15 Pro+ and the Xiaomi 15 Ultra?
The OPPO K15 Pro+ has a MobileRank rating of 71/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the OPPO K15 Pro+ or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 35/100).
Should you choose the OPPO K15 Pro+ over the Xiaomi 15 Ultra?
The OPPO K15 Pro+ 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.