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).
OPPO K15 Pro
Vivo X300s
- Bigger battery: 7500 vs 7100 mAh
- Lighter: 200g vs 217g
- Cheaper at launch: $436 vs $723
- Better portability (56/100 vs 42/100)
- Higher AnTuTu: 3703823 vs 2254164
- Better Geekbench Single: 3228 vs 1553
- Better Geekbench Multi: 9553 vs 6403
- Faster charging: 90W vs 80W
- Better main camera: 200MP vs 50MP
- Higher performance (94/100 vs 78/100)
- Better camera (94/100 vs 35/100)
- Longer battery life (83/100 vs 69/100)
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 (94/100 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 — 68/100, Vivo X300s — 90/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo X300s notably outperforms the OPPO K15 Pro (94/100 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).
| Specification | OPPO K15 Pro | Vivo X300s | |
|---|---|---|---|
| Processor | MediaTek Dimensity 8500 | Dimensity 9500 | |
| AnTuTu | 2254164 | 3703823 | |
| Geekbench Single | 1553 | 3228 | |
| Geekbench Multi | 6403 | 9553 | |
| 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 |
OPPO K15 Pro
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Vivo X300s
- Main: 200MP f/f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 50MP
OPPO K15 Pro
- 6.6" AMOLED
- Resolution: 2760x1256
- Refresh rate: 144 Hz
Vivo X300s
- 6.8" LTPO AMOLED
- Resolution: 2800x1260
- Refresh rate: 144 Hz
OPPO K15 Pro
- 7500 mAh
- Wired: 80W
- No wireless charging
Vivo X300s
- 7100 mAh
- Wired: 90W
- Wireless: 40W
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.
Launch price difference: $287. OPPO K15 Pro was $287 cheaper at launch.
performance
In the "performance" category, the Vivo X300s notably outperforms the OPPO K15 Pro (94/100 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).
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 (94/100 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.