Který je lepší na focení Vivo x300pro nebo Xiamoz17ulta

Leica optics, mechanical zoom and high performance
The Xiaomi 17 Ultra smartphone combines the latest mobile technology, Leica optics, and a mechanical optical zoom. The triple-lens system, with a 200Mpx periscopic telephoto lens offering a seamless 75–100mm range, a 1-inch Light Fusion 1050L main sensor, and an ultra-wide-angle 14mm lens, covers every photographic situation from macro to distant details. Night shots taken with the Xiaomi 17 Ultra are elevated to a new level by LOFIC HDR technology, while it handles video up to 8K or 4K@120fps in Dolby Vision. The smartphone's computing power is supplied by the 3nm Snapdragon 8 Elite Gen 5, and the LTPO AMOLED display with up to 3500 nits of brightness provides an unprecedented visual experience. The Xiaomi 17 Ultra phone has a 6000mAh battery that supports 90W HyperCharge or 50W wireless charging.
The Xiaomi 17 Ultra comes with a 6.9-inch LTPO AMOLED panel with a resolution of 2608 × 1200px, which saves energy on static content thanks to its variable 1–120Hz refresh rate, while ensuring perfect smoothness when scrolling or gaming. A peak brightness of 3500 nits guarantees readability even in direct summer sunlight, while 2160Hz PWM dimming eliminates unpleasant flickering at low brightness. The Xiaomi 17 Ultra phone's display shows 68 billion colours in the DCI-P3 colour space, supports HDR10+ and Dolby Vision, and meets strict TÜV Rheinland certifications for low blue light, flicker-free operation, and compliance with the natural circadian rhythm. This means watching films or reading in the evening won't strain your eyes, even after hours.
Behind the exceptional image quality is the proprietary M10 panel with HyperRGB technology, the first in the industry to replace the traditional Pentile sub-pixel array with a full RGB grid. The result for the Xiaomi 17 Ultra phone is a visibly sharper image with more natural colour reproduction and a 26% reduction in the entire display's power consumption. A new red sub-pixel layer with 11.4% higher light efficiency makes it possible to achieve that record-breaking 3500-nit brightness without compromising battery life in any way. With the 17 Ultra, Xiaomi proves that a top-tier display and energy efficiency don't have to be at odds – on the contrary, they can go hand in hand.
The Xiaomi 17 Ultra features a triple-lens camera system designed in collaboration with the legendary German brand Leica, a name synonymous with optical excellence. Each of the three lenses has undergone a precise multi-layer coating process combining PVD, UARII, and MgF₂ technologies, which suppress reflections, haze, and other optical defects. The result is images with crystal-clear optics and true-to-life colours – exactly as you see them with your own eyes. Whether you're shooting architecture, portraits, or distant details, the Leica system has the right lens for every situation.
At the heart of the Xiaomi 17 Ultra phone's camera system is a 50Mpx Leica Summilux main lens with an f/1.67 aperture and a 23mm focal length, equipped with a large 1-inch Light Fusion 1050L sensor. Thanks to the sensor size and a 3.2μm Super Pixel, the camera captures multiple times more light than standard mobile phone cameras, which is particularly noticeable when shooting at night or in challenging backlit conditions. At the same time, LOFIC HDR technology pushes beyond the traditional limits of dynamic range, capturing both bright highlights and dark shadows without losing detail. OIS optical stabilisation then eliminates shaky hands and ensures a sharp image even with longer exposures.
The real star of the show is the 200Mpx periscopic telephoto lens with a unique mechanical optical zoom, which covers a focal range of 75–100mm seamlessly using three groups of moving lenses. Unlike digital zoom, there is no loss of quality – the image remains sharp and detailed at any zoom setting. With support for high-quality optical zoom up to 400mm and an equivalent of 17.2× optical-level zoom, the Xiaomi 17 Ultra ranks among the absolute world leaders in mobile telephoto photography. Furthermore, the Leica APO optical lenses effectively suppress chromatic aberrations, so the edges of your images remain clean and natural even at maximum zoom.
On the Xiaomi 17 Ultra smartphone, you can shoot video in up to 8K@30fps or in 4K@120fps Log format for professional post-production and colour grading, with everything recordable directly in Dolby Vision HDR 10-bit. Gyro-EIS stabilisation ensures smooth shots even when moving, and the four-microphone array with directional pickup, omnidirectional recording, and sound source tracking delivers studio-quality audio straight from your hand. The AI Audio Mixer with Dolby support then provides intuitive sound editing directly during the cutting process. For creative fans, the Xiaomi phone also offers a professional multi-camera setup with the ability to link other Xiaomi devices for real-time shot monitoring.
The front camera of the Xiaomi 17 Ultra features a 50Mpx sensor with autofocus and an f/2.2 aperture, capturing the natural texture of skin with exceptional depth and colour fidelity. Every portrait looks authentic and vibrant—without exaggerated smoothing or artificially altered skin tones. It handles selfie videos up to 4K@60fps with gyro-EIS stabilisation, so even handheld shots look professional. With just one tap, AI image enhancement can sharpen details or intelligently expand the background of a shot without disrupting the natural composition.
The Xiaomi 17 Ultra is powered by the latest Qualcomm Snapdragon 8 Elite Gen 5, built on a cutting-edge 3nm process, which delivers 20% higher CPU performance, a 23% faster GPU, and 37% more powerful AI processing compared to the previous generation. The Oryon V3 octa-core processor, with a clock speed of up to 4.6GHz, combined with the Adreno 840 graphics chip, handles demanding games, 4K video editing, and dozens of apps running in parallel. Fast LPDDR5X memory and UFS 4.1 storage ensure instant data loading and a snappy system response under all circumstances.
Performance on paper is one thing—sustaining it under long-term load is another. That's why the Xiaomi 17 Ultra comes with a proprietary 3D Dual-Channel IceLoop cooling system, which uses a bionic microstructure vapour chamber inspired by natural structures for maximum heat transfer. A vast 5500mm² heat dissipation area disperses heat evenly across the entire phone body, providing 50% higher thermal conductivity compared to conventional solutions.
The Xiaomi 17 Ultra phone has received dual IP68 certification, guaranteeing resistance to submersion in up to 6 metres of water for 30 minutes, as well as resistance to strong water jets. The front screen is protected by Xiaomi Shield Glass 3.0, offering 30% greater drop resistance than the previous generation, while the camera cover glass is made from durable Corning Gorilla Glass 7i. A robust aluminium frame and a composite fibreglass back give the phone superior durability.
With support for Google Gemini, the Xiaomi 17 Ultra brings elements of truly smart assistance to everyday use. Artificial intelligence helps you find information faster, summarise texts, plan tasks, or work with content across apps in a natural and understandable way. Gemini learns from your usage style and provides relevant suggestions exactly when you need them, increasing both efficiency and comfort when using your phone.
The HyperOS 3 system takes the user experience on the Xiaomi 17 Ultra another step further. It offers a clean, clear interface with an emphasis on fast responses, low system resource requirements, and better power management. Kernel-level optimisation ensures swift app launches and smooth multitasking, while thoughtful animations and a logical menu layout make daily operation more enjoyable. HyperOS 3 is designed to maintain the phone's high performance over the long term while providing a stable foundation for security updates and new features for years to come.
Xiaomi Technology Netherland B.V, Prinses Beatrixlaan 582, Postal 2595 BM, The Hague, The Netherlands, www.mi.com, [email protected]
Specifications can be changed without notice. Images are for illustrative purposes only.