OnePlus 15 vs Vivo X300 Ultra
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; estimated prices are $799 and $950. By overall MobileRank rating, the Vivo X300 Ultra leads — 87/100 vs 61/100 (a 26-point difference). Key differences: the Vivo X300 Ultra has the bigger battery (7000 mAh vs 6500); the main camera is 50 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 3,621,671); the OnePlus 15 is noticeably lighter (213g vs 230g).
OnePlus 15
Vivo X300 Ultra
- Lighter: 213g vs 230g
- Cheaper: $799 vs $950
- Better design/ergonomics (33/100 vs 12/100)
- Better value for money (55/100 vs 44/100)
- Higher AnTuTu: 4247433 vs 3621671
- Better Geekbench Single: 3640 vs 3050
- Better Geekbench Multi: 11033 vs 9300
- Bigger battery: 7000 vs 6500 mAh
- Better main camera: 200MP vs 50MP
- Higher performance (96/100 vs 77/100)
- Better camera (96/100 vs 34/100)
- Longer battery life (77/100 vs 48/100)
Comparing the OnePlus 15 vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 26 points higher (87/100 vs 61/100). In the "performance" category, the Vivo X300 Ultra leads (96/100 vs 77/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 34/100). In the "battery" category, the Vivo X300 Ultra leads (77/100 vs 48/100). In the "value for money" category, the OnePlus 15 leads (55/100 vs 44/100). In the "performance" category, the Vivo X300 Ultra notably outperforms the OnePlus 15 (96/100 vs 77/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo X300 Ultra significantly outperforms the OnePlus 15 (96/100 vs 34/100). In the "battery" category, the Vivo X300 Ultra notably outperforms the OnePlus 15 (77/100 vs 48/100). In the "design" category, the OnePlus 15 notably outperforms the Vivo X300 Ultra (33/100 vs 12/100). In the "value for money" category, the OnePlus 15 is a bit better (55/100 vs 44/100).
| Specification | OnePlus 15 | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 3621671 | 4247433 | |
| Geekbench Single | 3050 | 3640 | |
| Geekbench Multi | 9300 | 11033 | |
| Display | 6.8" AMOLED | 6.8" LTPO OLED | |
| Resolution | — | 3168x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6500 mAh | 7000 mAh | |
| Charging | — | 100W | |
| Wireless charging | 0W | 40W | |
| DXOMark (camera) | — | 170 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | — | Android 16 | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | IP69 | |
| Dimensions | 161.4×76.7×8.1 mm | 163.0×76.8×8.2 mm | |
| Weight | 213 g | 230 g | |
| Price | $799 | $950 |
OnePlus 15
- Main: 50MP
- Front: 32MP
Vivo X300 Ultra
- Main: 200MP f/f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
OnePlus 15
- 6.8" AMOLED
- Refresh rate: 120 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
OnePlus 15
- 6500 mAh
- No wireless charging
Vivo X300 Ultra
- 7000 mAh
- NanoReview test: web browsing 10:18 hrs, total 29:11 hrs
- Wired: 100W
- Wireless: 40W
We compared OnePlus 15 and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads OnePlus 15 by 14.7% in our overall performance rating.
Price difference: $151. OnePlus 15 is cheaper by $151.
performance
In the "performance" category, the Vivo X300 Ultra notably outperforms the OnePlus 15 (96/100 vs 77/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Vivo X300 Ultra significantly outperforms the OnePlus 15 (96/100 vs 34/100).
battery
In the "battery" category, the Vivo X300 Ultra notably outperforms the OnePlus 15 (77/100 vs 48/100).
design
In the "design" category, the OnePlus 15 notably outperforms the Vivo X300 Ultra (33/100 vs 12/100).
value for money
In the "value for money" category, the OnePlus 15 is a bit better (55/100 vs 44/100).
Which is better: the OnePlus 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra significantly outperforms the OnePlus 15 by 26 points (87/100 vs 61/100).
What is the rating of the OnePlus 15 and the Vivo X300 Ultra?
The OnePlus 15 has a MobileRank rating of 61/100, the Vivo X300 Ultra — 87/100.
Which has the better camera: the OnePlus 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 34/100).
Which is more powerful: the OnePlus 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on performance (96/100 vs 77/100).
Should you choose the OnePlus 15 over the Vivo X300 Ultra?
The OnePlus 15 is a better fit for active users. The Vivo X300 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life.