They are closely matched: Xiaomi 17 Ultra scores 85/100 and Vivo X300 Ultra scores 84/100 in our overall comparison — within 1 point. Neither is a clear winner overall, so the decision comes down to the specific features and price that matter most to you.
Xiaomi 17 Ultra vs Vivo X300 Ultra
Updated Nov 2026 · Scored by the Let’s Compare Data Engine · How we score
The Xiaomi 17 Ultra and Vivo X300 Ultra are closely matched at 75 and 74/100. The Xiaomi 17 Ultra edges ahead on Memory and Storage, while the Vivo X300 Ultra leads on Display and Rear Camera — pick the one whose strengths match what you'll actually use.
Verdict
Our overall take, at a glance
Key takeaways
- Xiaomi 17 Ultra and Vivo X300 Ultra are closely matched overall (within 1 point).
- Xiaomi 17 Ultra stands out on Storage capacity: 512 GB (100% more), Design & Weight Dimensions: 7.76 × 16.29 × 0.83 cm, Memory RAM capacity: 16 GB (33% more).
- Vivo X300 Ultra counters with Rear camera (megapixels): 200 MP (300% more), Display Resolution: 1440 × 3168 px, Display Pixel density: 510 PPI (23% more).
Xiaomi 17 Ultra and Vivo X300 Ultra are closely matched
Xiaomi 17 Ultra
75
Vivo X300 Ultra
74
Where Xiaomi 17 Ultra stands out
- Storage capacity: 512 GB (100% more)
- Design & Weight Dimensions: 7.76 × 16.29 × 0.83 cm
- Memory RAM capacity: 16 GB (33% more)
Where Vivo X300 Ultra stands out
- Rear camera (megapixels): 200 MP (300% more)
- Display Resolution: 1440 × 3168 px
- Display Pixel density: 510 PPI (23% more)
In-depth analysisAI
AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Nov 2026.
Xiaomi 17 Ultra
The Xiaomi 17 Ultra is a premium, camera-focused flagship smartphone designed for mobile photography purists and power users. Running on Xiaomi's HyperOS, the device stands out with its massive rear camera array and extensive Leica branding.
Best for Enthusiasts seeking advanced mobile photography with Leica color tuningBest for Users who want a premium global smartphone with top-tier screen and battery…
Pros
- Highly capable camera system with deep Leica integration and versatile shooting parameters
- Runs on the refined HyperOS platform with global market availability
- High-quality display, strong audio performance, and dependable battery life
Cons
- The massive physical size of the camera module dominates the rear design, making it feel more like a dedicated camera than a traditional phone
- Camera interface requires diving into menus to preserve custom resolution and shooting parameters between sessions
Vivo X300 Ultra
The Vivo X300 Ultra is a high-end flagship smartphone designed for mobile photography enthusiasts and power users looking for professional-grade imaging capabilities. It is powered by the Snapdragon 8 Elite Gen 5 processor paired with LPDDR5X memory, featuring a large 6.82-inch 144Hz LTPO AMOLED display and an advanced multi-sensor camera array anchored by a 200MP main sensor and a 200MP periscope telephoto lens.
Best for long-range and telephoto mobile photographyBest for high-frame-rate 4K and 8K video captureBest for all-day heavy multimedia usage
Pros
- Extensive multi-focal length camera setup featuring high-resolution 200MP main and telephoto sensors with OIS
- High-capacity 6600mAh battery supporting 100W wired and 40W wireless charging
- Vibrant 6.82-inch LTPO AMOLED display with adaptive 1-144Hz refresh rate and Dolby Vision support
- Robust performance driven by the Snapdragon 8 Elite Gen 5 chip and UFS 4.1 storage
Cons
- Bulky physical footprint with a weight of 232g or more depending on the finish
- Lacks expandable storage via a microSD card slot
- Absence of a traditional 3.5mm headphone jack
Value for Money
Which is the better deal for the price
Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.
Xiaomi 17 Ultra
Vivo X300 Ultra
Performance
Higher benchmark score = faster
Xiaomi 17 Ultra2,777,490
Vivo X300 Ultra2,723,497
Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.
Battery capacity
Larger cell — a hardware spec, not battery life
Xiaomi 17 Ultra6,000 mAh
Vivo X300 Ultra6,600 mAh
Capacity is the raw battery size. Real-world battery life depends just as much on the processor, software and display.
Physical Comparison
Weigh them up, then compare real dimensions in 3D
Xiaomi 17 UltraVivo X300 Ultra
Vivo X300 Ultra is 14 g (6%) heavier than Xiaomi 17 Ultra.
Review Videos
Hand-picked expert reviews for each product
Detailed Specifications
The full spec sheet, side by side
Frequently Asked Questions
Common questions about Xiaomi 17 Ultra vs Vivo X300 Ultra comparison
Xiaomi 17 Ultra and Vivo X300 Ultra are compared side by side above across every spec in the smartphones category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 85/100 for Xiaomi 17 Ultra and 84/100 for Vivo X300 Ultra.
It's close — Xiaomi 17 Ultra (85/100) and Vivo X300 Ultra (84/100) score almost the same. Pick based on price and the individual specs that matter most to you; the comparison above shows where each one pulls ahead.
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