The flagship space in 2026 has reached a new high with the launch of the Xiaomi 17 Ultra and the Samsung Galaxy S26 Ultra, two of the most feature-packed smartphones to hit the market.
Both brands aim to redefine the Ultra experience, but they take very different approaches to design, imaging systems, performance, and software. Letβs break it down to see which one might deserve your hard-earned money.
Design and Build
Xiaomi introduced a flat display for the first time in its Ultra lineup with the 17 Ultra. The phone features a 6.9-inch display with ultra-thin bezels and a clean, linear design. Xiaomi reduced the size of the camera module and placed it higher to improve balance. At 8.29mm thick, it is the thinnest Ultra model Xiaomi has ever created.
Samsung made the Galaxy S26 Ultra slimmer than its predecessors, with a thickness of just 7.9mm. The phone features a 6.9-inch flat screen and a Privacy Display. This hardware-software integration restricts viewing angles, improving privacy in public spaces.
Both phones feel premium and relatively light for their class, but Samsung gains a slight edge thanks to its slimmer profile and the added practicality of the built-in Privacy Display.
Display
Xiaomi used its 12-bit M10 OLED LTPO screen for the 17 Ultra. The display delivers up to 3500 nits of peak brightness, making it the brightest among flagships. Xiaomi integrated HyperRGB technology, which combines 2K clarity with lower power consumption compared to standard 1.5K displays. The screen also supports HDR10+ and Dolby Vision, and is protected by Xiaomi Shield Glass 3.0.
Samsung equipped the S26 Ultra with its 10-bit Dynamic AMOLED display. The screen supports 1-120Hz adaptive refresh rates, HDR10+, and Gorilla Armor 2 protection. While the display delivers excellent visuals, it falls short of Xiaomiβs brightness and efficiency.
Xiaomi has the edge in display performance with its brighter and more power-efficient screen.
Performance
Xiaomi and Samsung both use the Snapdragon 8 Elite Gen 5 chipset, but Samsung integrates the Snapdragon 8 Elite Gen 5 for Galaxy, a customized version optimized specifically for Galaxy devices. This custom chip enhances gaming, AI performance, and power efficiency, making it a standout feature for the Galaxy S26 Ultra.
Samsung pairs the chipset with 12GB or 16GB of LPDDR5x RAM and storage options of 256GB, 512GB, or 1TB UFS 4.1. It introduces its largest Vapor Chamber ever, which dissipates heat faster and more efficiently, ensuring consistent performance during intensive tasks. Samsung combines this with a tailored thermal interface material (TIM), resulting in 21% greater thermal performance compared to previous models.
Xiaomi equips the 17 Ultra with 16GB of LPDDR5x RAM and options for 512GB or 1TB of UFS 4.1 storage. It features the Xiaomi 3D Dual-Channel IceLoop cooling system, which brings a new capillary structure and improves thermal conductivity by 50% over the previous generation. This advanced cooling system ensures sustained performance during heavy gaming and multitasking.
Performance is top-tier on both devices, so day-to-day use feels equally smooth and responsive regardless of which one you choose.
Software
Xiaomi ships the 17 Ultra with HyperOS 3.0 based on Android 16. The software delivers a clean user experience but lacks major AI-driven features. Xiaomi does not match Samsungβs promise of long-term software support.
Samsung made software a priority with the Galaxy S26 Ultra. The phone runs Android 15 with One UI 8.5 and will receive seven generations of Android updates and seven years of security patches. Samsung also introduced advanced AI features like Now Nudge for contextual suggestions and Now Brief for real-time summaries. These features make the phone smarter and more intuitive.
Samsung leads in software innovation and long-term support, making it the better choice for users who prioritize longevity.
Cameras
Xiaomi developed the 17 Ultraβs camera system in collaboration with Leica, focusing on professional-grade photography. The phone features a 50MP Leica 1-inch Ultra Dynamic Camera powered by the Light Fusion 1050L sensor, which improves dynamic range and detail in challenging lighting conditions. The 200MP Leica telephoto camera uses a 1/1.4-inch HPE sensor with true optical zoom between 75mm and 100mm, maintaining full resolution without relying on digital cropping. The setup also includes a 50MP ultra-wide camera with a 115Β° field of view and macro support, while Leica APO certification helps reduce chromatic aberration for sharper, more color-accurate images.
Xiaomi also offers optional Photography Kits designed for camera enthusiasts. The standard kit includes a grip with physical buttons and magnetic charging, while the Pro kit adds a larger battery, trigger buttons, and a zoom lever.
Samsung equipped the Galaxy S26 Ultra with a quad-camera system that prioritizes versatility. The 200MP main sensor features a wider aperture for improved low-light performance. The phone includes a 50MP ultra-wide sensor and two telephoto lenses: a 10MP 3x optical zoom lens and a 50MP periscope telephoto lens with 5x optical zoom, supporting up to 100x Space Zoom. Samsung enhanced its Nightography Video for clearer low-light videos and improved Super Steady stabilization for smoother handheld recording.
Xiaomi offers superior still photography with its Leica-powered hardware. Samsung delivers better video performance and excels in low-light scenes.
Battery
Xiaomi equips the 17 Ultra with a 6000mAh battery, supporting 90W wired charging, 50W wireless charging, and PPS (Programmable Power Supply) for optimized and efficient charging speeds.
Samsung uses a smaller 5000mAh battery and features Super Fast Charging 3.0, which charges the phone to 75% in just 30 minutes with its 60W charger. It also supports 25W Qi2 wireless charging and reverse wireless charging.
Xiaomi takes the lead in this category, offering both higher capacity and faster charging options.
Which Ultra Should You Choose?
The Xiaomi 17 Ultra stands out for its brighter display, larger battery, and Leica-powered photography system. It is the ideal choice for users who prioritize cutting-edge camera technology and hardware performance.
The Samsung Galaxy S26 Ultra excels in AI features, long-term software support, and low-light video performance. It is better suited for users who want a phone that stays relevant for years and integrates advanced AI into daily use.
Both phones are excellent in their own right, but the choice ultimately depends on whether you value photography (Xiaomi) or software and AI (Samsung).
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The post Galaxy S26 Ultra vs Xiaomi 17 Ultra: Which Ultra is the Better Pick? appeared first on Gizmochina.