OPPO K15 Pro vs Vivo X300s
The OPPO K15 Pro (2026) runs on the MediaTek Dimensity 8500, while the Vivo X300s (2026) runs on the Dimensity 9500; launch prices were $436 and $723. By overall MobileRank rating, the Vivo X300s leads — 89/100 vs 67/100 (a 22-point difference). Key differences: the OPPO K15 Pro has the bigger battery (7500 mAh vs 7100); the main camera is 50 MP vs 200 MP; the Vivo X300s is faster in AnTuTu (3,703,823 vs 2,254,164); the OPPO K15 Pro is noticeably lighter (200g vs 217g).
Profile comparison
Category scores
OPPO K15 Pro
Vivo X300s
What makes OPPO K15 Pro better?
- Bigger battery: 7500 vs 7100 mAh
- Lighter: 200g vs 217g
- Cheaper at launch: $436 vs $723
- Better portability (56/100 vs 42/100)
What makes Vivo X300s better?
- Higher AnTuTu: 3703823 vs 2254164
- Better Geekbench Single: 3293 vs 1555
- Better Geekbench Multi: 10243 vs 6405
- Faster charging: 90W vs 80W
- Better main camera: 200MP vs 50MP
- Higher performance (95/100 vs 78/100)
- Better camera (94/100 vs 35/100)
- Longer battery life (83/100 vs 69/100)
Comparison verdict
Comparing the OPPO K15 Pro vs the Vivo X300s, the Vivo X300s scores 22 points higher (89/100 vs 67/100). In the "performance" category, the Vivo X300s leads (95/100 vs 78/100). In the "camera" category, the Vivo X300s leads (94/100 vs 35/100). In the "battery" category, the Vivo X300s leads (83/100 vs 69/100). Value score: OPPO K15 Pro — 60/100, Vivo X300s — 92/100; 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 Vivo X300s notably outperforms the OPPO K15 Pro (95/100 vs 78/100). In the "display" category, both devices are on the same level — 94/100. In the "camera" category, the Vivo X300s significantly outperforms the OPPO K15 Pro (94/100 vs 35/100). In the "battery" category, the Vivo X300s is a bit better (83/100 vs 69/100). In the "portability" category, the OPPO K15 Pro is a bit better (56/100 vs 42/100).
Specs comparison
| Specification | OPPO K15 Pro | Vivo X300s | |
|---|---|---|---|
| Processor | MediaTek Dimensity 8500 | Dimensity 9500 | |
| AnTuTu | 2254164 | 3703823 | |
| Geekbench Single | 1555 | 3293 | |
| Geekbench Multi | 6405 | 10243 | |
| Display | 6.6" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 2760x1256 | 2800x1260 | |
| Refresh rate | 144 Hz | 144 Hz | |
| Battery | 7500 mAh | 7100 mAh | |
| Charging | 80W | 90W | |
| Wireless charging | 0W | 40W | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 16 MP | 50 MP | |
| RAM | 12GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 / OriginOS 6 | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | — | |
| Protection | IP68 | — | |
| Dimensions | 162.4×77.5×8.3 mm | — | |
| Weight | 200 g | 217 g | |
| Launch price | $436 | $723 |
Camera comparison
OPPO K15 Pro
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Vivo X300s
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 50MP
Display comparison
OPPO K15 Pro
- 6.6" AMOLED
- Resolution: 2760x1256
- Refresh rate: 144 Hz
Vivo X300s
- 6.8" LTPO AMOLED
- Resolution: 2800x1260
- Refresh rate: 144 Hz
Battery and charging
OPPO K15 Pro
- 7500 mAh
- Wired: 80W
- No wireless charging
Vivo X300s
- 7100 mAh
- Wired: 90W
- Wireless: 40W
Overall performance score
We compared OPPO K15 Pro and Vivo X300s, covering their specs and all relevant benchmarks.
Vivo X300s leads OPPO K15 Pro by 39.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $287. OPPO K15 Pro was $287 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo X300s notably outperforms the OPPO K15 Pro (95/100 vs 78/100).
display
In the "display" category, both devices are on the same level — 94/100.
camera
In the "camera" category, the Vivo X300s significantly outperforms the OPPO K15 Pro (94/100 vs 35/100).
battery
In the "battery" category, the Vivo X300s is a bit better (83/100 vs 69/100).
portability
In the "portability" category, the OPPO K15 Pro is a bit better (56/100 vs 42/100).
Frequently asked questions
Which is better: the OPPO K15 Pro or the Vivo X300s?
The Vivo X300s significantly outperforms the OPPO K15 Pro by 22 points (89/100 vs 67/100).
What is the rating of the OPPO K15 Pro and the Vivo X300s?
The OPPO K15 Pro has a MobileRank rating of 67/100, the Vivo X300s — 89/100.
Which has the better camera: the OPPO K15 Pro or the Vivo X300s?
The Vivo X300s leads on camera score (94/100 vs 35/100).
Which is more powerful: the OPPO K15 Pro or the Vivo X300s?
The Vivo X300s leads on performance (95/100 vs 78/100).
Should you choose the OPPO K15 Pro over the Vivo X300s?
The OPPO K15 Pro is a better fit for active users. The Vivo X300s is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.