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vivo X300 vs OnePlus 15: specs, scores & best pick
Compare the vivo X300 and OnePlus 15 smartphones with detailed specs and performance insights, display analysis, camera capabilities, battery and charging, buyer guide, pros & cons, FAQs, and expert verdict.
Updated: 2025-12-22
Buyer guide
vivo X300
- You want a compact flagship with excellent ZEISS-tuned camera performance.
- You prefer a smaller display and balanced specs.
- Photography and day-to-day performance matter most.
OnePlus 15
- You want the biggest screen and longest battery life.
- Gaming and high refresh rate experience matters.
- You want flagship-level performance and endurance.
Quick rule: Pick vivo X300 if you prefer a compact, camera-centric flagship. Pick OnePlus 15 if display size, battery life, and overall flagship performance are your priority.
vivo X300
FLIPKART • MOBHHZBCQRGMFFHY
Flagship Android • 12/16 GB • 256/512 GB • Android 16 (OriginOS 6)
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View detailsBuy
OnePlus 15
FLIPKART • MOBHHNF53GG7JW7S
Flagship Android • 12/16 GB • 256/512 GB • Android 16 (OxygenOS 16)
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View detailsBuy
Price-to-performance score
vivo X300
8.7/10
Strong imaging capabilities and flagship performance at competitive pricing in its segment.
OnePlus 15
9.2/10
Superior performance, larger display, and class-leading battery make it a top flagship choice.
Price comparison
vivo X300
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OnePlus 15
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Quick comparison
performance
vivo X300
Powered by MediaTek Dimensity 9500 chipset — flagship-level performance with strong multicore and balanced efficiency. :contentReference[oaicite:0]{index=0}
OnePlus 15
Powered by Snapdragon 8 Elite Gen 5 — top flagship performance with excellent benchmarks and gaming results. :contentReference[oaicite:1]{index=1}
display
vivo X300
6.31" AMOLED display with 120 Hz refresh rate — compact but bright and smooth visuals. :contentReference[oaicite:2]{index=2}
OnePlus 15
6.78" AMOLED display with 165 Hz refresh rate — larger and smoother experience for gaming and scrolling. :contentReference[oaicite:3]{index=3}
camera
vivo X300
Triple-camera system with a 200 MP primary sensor + 50 MP ultra-wide + 50 MP telephoto; strong detail and Zeiss-tuned imaging. :contentReference[oaicite:4]{index=4}
OnePlus 15
Triple camera setup (50 MP primary + 50 MP ultra-wide + 50 MP telephoto) with OnePlus’ DetailMax processing engine. :contentReference[oaicite:5]{index=5}
battery and charging
vivo X300
6,040 mAh battery with 90 W wired and 40 W wireless charging support. :contentReference[oaicite:6]{index=6}
OnePlus 15
7,300 mAh battery with 120 W wired and 50 W wireless charging support — excellent real-world endurance. :contentReference[oaicite:7]{index=7}
software
vivo X300
OriginOS 6 based on Android 16 — feature-rich UI with focus on customization and imagery.
OnePlus 15
OxygenOS 16 based on Android 16 — clean, responsive UI with gaming and performance optimizations.
Highlights table
| Feature | vivo X300 — | OnePlus 15 — |
|---|---|---|
| Processor | Dimensity 9500 | Snapdragon 8 Elite Gen 5 |
| Display | 6.31" AMOLED, 120 Hz | 6.78" AMOLED, 165 Hz |
| Rear Cameras | 200 MP + 50 MP + 50 MP | 50 MP + 50 MP + 50 MP |
| Front Camera | 50 MP | 32 MP |
| Battery | 6040 mAh | 7300 mAh |
| Charging | 90W / 40W | 120W / 50W |
| OS | OriginOS 6 | OxygenOS 16 |
Pros & Cons
vivo X300
Pros
- —
Cons
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OnePlus 15
Pros
- Larger, smoother display
- Massive battery with rapid charging
- Excellent overall performance
Cons
- Front camera resolution slightly lower
- Software updates promise shorter runway than Apple
Full specifications comparison
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| Feature | vivo X300 | OnePlus 15 |
|---|
FAQ
Which phone has a better battery?
The OnePlus 15 has a larger 7,300 mAh battery with faster charging, compared to vivo X300’s 6,040 mAh battery. :contentReference[oaicite:8]{index=8}
Which has a better camera?
vivo X300’s 200 MP main sensor and ZEISS tuning make it very capable, while OnePlus 15’s triple 50 MP setup is balanced and reliable for everyday use. :contentReference[oaicite:9]{index=9}
Is the displays difference significant?
OnePlus 15’s larger 165 Hz panel offers smoother visuals and more immersive media experience, whereas vivo X300’s 120 Hz panel is compact and great for one-handed usage. :contentReference[oaicite:10]{index=10}
Verdict
The OnePlus 15 and vivo X300 are both excellent flagship phones, with OnePlus leading in battery life, display size, and overall performance, while vivo X300 brings a strong camera setup and a more compact form factor. Your choice should hinge on whether you value larger screen and endurance or imaging prowess and portability.