Oppo K15s vs Vivo iQOO 15 Ultra
The Oppo K15s (2026) runs on the MediaTek Dimensity 6360 Max, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 49/100 (a 40-point difference). Key differences: the Oppo K15s has the bigger battery (8000 mAh vs 7400); the Oppo K15s is noticeably lighter (205g vs 227g).
Profile comparison
Category scores
Oppo K15s
Vivo iQOO 15 Ultra
What makes Oppo K15s better?
- Bigger battery: 8000 vs 7400 mAh
- Lighter: 205g vs 227g
- Better portability (47/100 vs 35/100)
What makes Vivo iQOO 15 Ultra better?
- Better Geekbench Single: 3639 vs 850
- Better Geekbench Multi: 11047 vs 2250
- Faster charging: 120W vs 45W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (99/100 vs 43/100)
- Better camera (78/100 vs 30/100)
- Longer battery life (92/100 vs 64/100)
- Better display (99/100 vs 80/100)
Comparison verdict
Comparing the Oppo K15s vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 40 points higher (89/100 vs 49/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 43/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 64/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Oppo K15s (99/100 vs 43/100). In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Oppo K15s (99/100 vs 80/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Oppo K15s (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Oppo K15s (92/100 vs 64/100). In the "portability" category, the Oppo K15s is a bit better (47/100 vs 35/100).
Specs comparison
| Specification | Oppo K15s | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6360 Max | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | — | 4602290 | |
| Geekbench Single | 850 | 3639 | |
| Geekbench Multi | 2250 | 11047 | |
| Display | 6.6" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1080x2372 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 8000 mAh | 7400 mAh | |
| Charging | 45W | 120W | |
| Wireless charging | 0W | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB / 24GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 16, ColorOS 16 | Android 16 | |
| Brightness (peak) | 1400 nits | 8000 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 159.1×75.8×8.8 mm | 163.7×76.8×8.7 mm | |
| Weight | 205 g | 227 g | |
| Launch price | — | $799 |
Camera comparison
Oppo K15s
- Main: 50MP f/1.9
- Front: 8MP
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Oppo K15s
- 6.6" AMOLED
- Resolution: 1080x2372
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Oppo K15s
- 8000 mAh
- Wired: 45W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Benchmarks
Launch prices and where to check today's
Oppo K15s
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Oppo K15s (99/100 vs 43/100).
display
In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Oppo K15s (99/100 vs 80/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Oppo K15s (78/100 vs 30/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Oppo K15s (92/100 vs 64/100).
portability
In the "portability" category, the Oppo K15s is a bit better (47/100 vs 35/100).
Frequently asked questions
Which is better: the Oppo K15s or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Oppo K15s by 40 points (89/100 vs 49/100).
What is the rating of the Oppo K15s and the Vivo iQOO 15 Ultra?
The Oppo K15s has a MobileRank rating of 49/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Oppo K15s or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 30/100).
Which is more powerful: the Oppo K15s or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 43/100).
Should you choose the Oppo K15s over the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.