Oppo K15s vs Xiaomi 17 Ultra (China)
The Oppo K15s (2026) runs on the MediaTek Dimensity 6360 Max, while the Xiaomi 17 Ultra (China) (2025) runs on the Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Xiaomi 17 Ultra (China) leads — 87/100 vs 49/100 (a 38-point difference). Key differences: the Oppo K15s has the bigger battery (8000 mAh vs 6800); the Oppo K15s is noticeably lighter (205g vs 224g).
Profile comparison
Category scores
Oppo K15s
Xiaomi 17 Ultra (China)
What makes Oppo K15s better?
- Bigger battery: 8000 vs 6800 mAh
- Lighter: 205g vs 224g
- Better portability (47/100 vs 42/100)
What makes Xiaomi 17 Ultra (China) better?
- Better Geekbench Single: 3639 vs 850
- Better Geekbench Multi: 11047 vs 2250
- Faster charging: 90W vs 45W
- Higher performance (98/100 vs 43/100)
- Better camera (87/100 vs 30/100)
- Longer battery life (83/100 vs 64/100)
- Better display (81/100 vs 80/100)
Comparison verdict
Comparing the Oppo K15s vs the Xiaomi 17 Ultra (China), the Xiaomi 17 Ultra (China) scores 38 points higher (87/100 vs 49/100). In the "performance" category, the Xiaomi 17 Ultra (China) leads (98/100 vs 43/100). In the "camera" category, the Xiaomi 17 Ultra (China) leads (87/100 vs 30/100). In the "battery" category, the Xiaomi 17 Ultra (China) leads (83/100 vs 64/100). In the "performance" category, the Xiaomi 17 Ultra (China) significantly outperforms the Oppo K15s (98/100 vs 43/100). In the "display" category, the Xiaomi 17 Ultra (China) and the Oppo K15s are nearly equal (81/100 vs 80/100). In the "camera" category, the Xiaomi 17 Ultra (China) significantly outperforms the Oppo K15s (87/100 vs 30/100). In the "battery" category, the Xiaomi 17 Ultra (China) notably outperforms the Oppo K15s (83/100 vs 64/100). In the "portability" category, the Oppo K15s is a bit better (47/100 vs 42/100).
Specs comparison
| Specification | Oppo K15s | Xiaomi 17 Ultra (China) | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6360 Max | Snapdragon 8 Elite Gen 5 | |
| AnTuTu | — | 3950082 | |
| Geekbench Single | 850 | 3639 | |
| Geekbench Multi | 2250 | 11047 | |
| Display | 6.6" AMOLED | 6.9" LTPO AMOLED | |
| Resolution | 1080x2372 | 1200x2608 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 8000 mAh | 6800 mAh | |
| Charging | 45W | 90W | |
| Wireless charging | 0W | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 8 MP | 50 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 512GB / 1TB | |
| OS | Android 16, ColorOS 16 | Android 16 | |
| Brightness (peak) | 1400 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 159.1×75.8×8.8 mm | 162.9×77.6×8.3 mm | |
| Weight | 205 g | 224 g | |
| Launch price | — | $892 |
Camera comparison
Oppo K15s
- Main: 50MP f/1.9
- Front: 8MP
Xiaomi 17 Ultra (China)
- Main: 50MP f/1.7
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Display comparison
Oppo K15s
- 6.6" AMOLED
- Resolution: 1080x2372
- Refresh rate: 120 Hz
Xiaomi 17 Ultra (China)
- 6.9" LTPO AMOLED
- Resolution: 1200x2608
- Refresh rate: 120 Hz
Battery and charging
Oppo K15s
- 8000 mAh
- Wired: 45W
- No wireless charging
Xiaomi 17 Ultra (China)
- 6800 mAh
- Wired: 90W
- Wireless: 50W
Benchmarks
Launch prices and where to check today's
Oppo K15s
Price unknownDetailed category analysis
performance
In the "performance" category, the Xiaomi 17 Ultra (China) significantly outperforms the Oppo K15s (98/100 vs 43/100).
display
In the "display" category, the Xiaomi 17 Ultra (China) and the Oppo K15s are nearly equal (81/100 vs 80/100).
camera
In the "camera" category, the Xiaomi 17 Ultra (China) significantly outperforms the Oppo K15s (87/100 vs 30/100).
battery
In the "battery" category, the Xiaomi 17 Ultra (China) notably outperforms the Oppo K15s (83/100 vs 64/100).
portability
In the "portability" category, the Oppo K15s is a bit better (47/100 vs 42/100).
Frequently asked questions
Which is better: the Oppo K15s or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) significantly outperforms the Oppo K15s by 38 points (87/100 vs 49/100).
What is the rating of the Oppo K15s and the Xiaomi 17 Ultra (China)?
The Oppo K15s has a MobileRank rating of 49/100, the Xiaomi 17 Ultra (China) — 87/100.
Which has the better camera: the Oppo K15s or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) leads on camera score (87/100 vs 30/100).
Which is more powerful: the Oppo K15s or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) leads on performance (98/100 vs 43/100).
Should you choose the Oppo K15s over the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.