OnePlus 15 vs Vivo X300 Ultra
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $799 and $950. By overall MobileRank rating, the Vivo X300 Ultra leads — 91/100 vs 86/100 (a 5-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 3,606,149); the OnePlus 15 is noticeably lighter (213g vs 230g).
Profile comparison
Category scores
OnePlus 15
Vivo X300 Ultra
What makes OnePlus 15 better?
- Faster charging: 120W vs 100W
- Faster wireless charging: 50W vs 40W
- Lighter: 213g vs 230g
- Cheaper at launch: $799 vs $950
- Longer battery life (89/100 vs 85/100)
- Better portability (50/100 vs 39/100)
What makes Vivo X300 Ultra better?
- Higher AnTuTu: 4247433 vs 3606149
- Bigger battery: 7000 vs 6500 mAh
- Better main camera: 200MP vs 50MP
- Higher performance (99/100 vs 97/100)
- Better camera (96/100 vs 78/100)
- Better display (89/100 vs 84/100)
Comparison verdict
Comparing the OnePlus 15 vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 5 points higher (91/100 vs 86/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 78/100). Value score: OnePlus 15 — 86/100, Vivo X300 Ultra — 94/100; 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 X300 Ultra and the OnePlus 15 are nearly equal (99/100 vs 97/100). In the "display" category, the Vivo X300 Ultra is a bit better (89/100 vs 84/100). In the "camera" category, the Vivo X300 Ultra notably outperforms the OnePlus 15 (96/100 vs 78/100). In the "battery" category, the OnePlus 15 and the Vivo X300 Ultra are nearly equal (89/100 vs 85/100). In the "portability" category, the OnePlus 15 is a bit better (50/100 vs 39/100).
Specs comparison
| Specification | OnePlus 15 | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 3606149 | 4247433 | |
| Geekbench Single | 3639 | 3639 | |
| Geekbench Multi | 11047 | 11047 | |
| Display | 6.8" AMOLED | 6.8" LTPO OLED | |
| Resolution | 1272x2772 | 3168x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6500 mAh | 7000 mAh | |
| Charging | 120W | 100W | |
| Wireless charging | 50W | 40W | |
| DXOMark (camera) | — | 170 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 50 MP | 200 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 16, OxygenOS 16 (Global), ColorOS 16 (China) | 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 | |
| Launch price | $799 | $950 |
Camera comparison
OnePlus 15
- Main: 50MP f/1.8
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo X300 Ultra
- Main: 200MP f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Display comparison
OnePlus 15
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 120 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Battery and charging
OnePlus 15
- 6500 mAh
- Wired: 120W
- Wireless: 50W
Vivo X300 Ultra
- 7000 mAh
- NanoReview test: web browsing 10:18 hrs, total 29:11 hrs
- Wired: 100W
- Wireless: 40W
Overall performance score
We compared OnePlus 15 and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads OnePlus 15 by 15.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $151. OnePlus 15 was $151 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo X300 Ultra and the OnePlus 15 are nearly equal (99/100 vs 97/100).
display
In the "display" category, the Vivo X300 Ultra is a bit better (89/100 vs 84/100).
camera
In the "camera" category, the Vivo X300 Ultra notably outperforms the OnePlus 15 (96/100 vs 78/100).
battery
In the "battery" category, the OnePlus 15 and the Vivo X300 Ultra are nearly equal (89/100 vs 85/100).
portability
In the "portability" category, the OnePlus 15 is a bit better (50/100 vs 39/100).
Frequently asked questions
Which is better: the OnePlus 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra edges out the OnePlus 15 by just 5 points — the two devices are very close in overall level.
What is the rating of the OnePlus 15 and the Vivo X300 Ultra?
The OnePlus 15 has a MobileRank rating of 86/100, the Vivo X300 Ultra — 91/100.
Which has the better camera: the OnePlus 15 or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 78/100).
Should you choose the OnePlus 15 over the Vivo X300 Ultra?
The OnePlus 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo X300 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.