Vivo iQOO 15 Ultra vs Vivo X300 Pro
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo X300 Pro (2025) runs on the Dimensity 9500; launch prices were $799 and $899. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 88/100 (a 1-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 6510); the main camera is 50 MP vs 200 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 3,326,259).
Profile comparison
Category scores
Vivo iQOO 15 Ultra
Vivo X300 Pro
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 3326259
- Better Geekbench Single: 3639 vs 3293
- Better Geekbench Multi: 11047 vs 10243
- Bigger battery: 7400 vs 6510 mAh
- Faster charging: 120W vs 90W
- Higher refresh rate: 144Hz vs 120Hz
- Faster wireless charging: 50W vs 40W
- Cheaper at launch: $799 vs $899
- Higher performance (99/100 vs 94/100)
- Longer battery life (92/100 vs 81/100)
- Better display (99/100 vs 84/100)
What makes Vivo X300 Pro better?
- Better main camera: 200MP vs 50MP
- Lighter: 226g vs 227g
- Better camera (96/100 vs 78/100)
- Better portability (43/100 vs 35/100)
Comparison verdict
Comparing the Vivo iQOO 15 Ultra vs the Vivo X300 Pro, the Vivo iQOO 15 Ultra scores 1 points higher (89/100 vs 88/100). In the "camera" category, the Vivo X300 Pro leads (96/100 vs 78/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 81/100). Value score: Vivo iQOO 15 Ultra — 92/100, Vivo X300 Pro — 88/100; 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 iQOO 15 Ultra is a bit better (99/100 vs 94/100). In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Vivo X300 Pro (99/100 vs 84/100). In the "camera" category, the Vivo X300 Pro notably outperforms the Vivo iQOO 15 Ultra (96/100 vs 78/100). In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 81/100). In the "portability" category, the Vivo X300 Pro is a bit better (43/100 vs 35/100).
Specs comparison
| Specification | Vivo iQOO 15 Ultra | Vivo X300 Pro | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Dimensity 9500 | |
| AnTuTu | 4602290 | 3326259 | |
| Geekbench Single | 3639 | 3293 | |
| Geekbench Multi | 11047 | 10243 | |
| Display | 6.8" LTPO AMOLED | 6.8" AMOLED | |
| Resolution | 1440x3168 | 1260x2800 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7400 mAh | 6510 mAh | |
| Charging | 120W | 90W | |
| Wireless charging | 50W | 40W | |
| DXOMark (camera) | — | 171 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB / 24GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 8000 nits | 4500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.7×76.8×8.7 mm | 161.2×75.5×8.0 mm | |
| Weight | 227 g | 226 g | |
| Launch price | $799 | $899 |
Camera comparison
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo X300 Pro
- Main: 200MP f/1.57
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo X300 Pro
- 6.8" AMOLED
- Resolution: 1260x2800
- Refresh rate: 120 Hz
Battery and charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo X300 Pro
- 6510 mAh
- NanoReview test: web browsing 13:30 hrs, total 24:37 hrs
- Wired: 90W
- Wireless: 40W
Overall performance score
We compared Vivo iQOO 15 Ultra and Vivo X300 Pro, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Vivo X300 Pro by 38.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $100. Vivo iQOO 15 Ultra was $100 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra is a bit better (99/100 vs 94/100).
display
In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Vivo X300 Pro (99/100 vs 84/100).
camera
In the "camera" category, the Vivo X300 Pro notably outperforms the Vivo iQOO 15 Ultra (96/100 vs 78/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 81/100).
portability
In the "portability" category, the Vivo X300 Pro is a bit better (43/100 vs 35/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 Ultra or the Vivo X300 Pro?
The Vivo iQOO 15 Ultra edges out the Vivo X300 Pro by just 1 points — the two devices are very close in overall level.
What is the rating of the Vivo iQOO 15 Ultra and the Vivo X300 Pro?
The Vivo iQOO 15 Ultra has a MobileRank rating of 89/100, the Vivo X300 Pro — 88/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo X300 Pro?
The Vivo X300 Pro leads on camera score (96/100 vs 78/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo X300 Pro?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 94/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo X300 Pro?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo X300 Pro is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.