Xiaomi and Samsung have set a new standard with their flagships, the Xiaomi 15 Ultra and the Galaxy S25 Ultra. These are the top smartphones you can buy right now. They have the latest technology, great cameras, and powerful processors. They’re the best options for those who want to use a premium smartphone. But which one should you get? If you want to buy the best flagship, read this comparison.

Xiaomi 15 Ultra – The Beast of Performance and Cameras

The best hardware and performance belong to the Xiaomi 15 Ultra, which also has a premium design that makes it a flagship contender. It has a curved display, a solid metal frame, and a glass or eco-leather back panel. It is light but sturdy and has an IP68 rating that makes it dust- and water-resistant.

Its screen is one of the brightest you’ll find at 3200 nits, and it has QHD+ resolution and a brisk 120Hz refresh rate so that everything looks sharp. Whether you’re gaming or watching videos, the screen will look great.

The Snapdragon 8 Gen 3 Elite processor inside the Xiaomi 15 Ultra means it’ll be blazingly fast. It runs on Xiaomi’s HyperOS that’s optimized for smooth performance and comes with four years of software updates. It also has a huge 6000mAh battery with super-fast 90W wired and 80W wireless charging, so you can get back to 100% in under 40 minutes.

The camera system of the Xiaomi 15 Ultra is also a highlight. The main 50MP 1-inch sensor captures more light, so you can take better photos in low light. The periscope telephoto lens has a 4. 3x optical zoom and a high-resolution 200MP sensor. You can take detailed shots even from far away. The front camera has a 32MP sensor, so selfies will be much sharper and more vivid. With Leica tuning, the camera system of the Xiaomi 15 Ultra gives you a natural and professional photography experience.

Camera Test and Real-World Shots

In real-world shots, the colors look natural and dynamic range is good. Low-light shots have good detail, and the larger sensor lets you have better background blur. The 200MP periscope lens takes super detailed zoom shots, making it one of the best telephoto cameras you can get. Night mode is well-optimized for noise reduction while maintaining details. Video recording is smooth, and with 8K support and AI stabilization, you can have shake-free videos.

Galaxy S25 Ultra – The Samsung Experience at Its Best

Samsung Galaxy S25 Ultra is about refinement and reliability The Samsung Galaxy S25 Ultra is still very much the boxy, metal-framed, Gorilla Glass-covered Samsung we’ve come to know and love, but it has a new fingerprint sensor, a bigger 6. 4-inch FHD+ display, and an IP68 rating that makes it waterproof and dust-tight.

It’s a LTPO AMOLED panel with QHD+ resolution and a 120Hz refresh rate, and Samsung has also thrown in an anti-reflective coating for good measure. It’s not quite as bright as the Xiaomi 15 Ultra, but it still has great viewing angles and offers an excellent experience. It’s not quite as bright as the Xiaomi 15 Ultra, but it still has great viewing angles and offers an excellent experience. The S Pen remains one of its best features, offering extra functionality for productivity, note-taking and creative tasks.

Samsung’s flagship has the Snapdragon 8 Gen 3 Elite chipset too – same as the Xiaomi, but with a slightly higher clock speed. You won’t really feel the difference in day-to-day use, but it will give the S25 Ultra a little bit more performance. You also get One UI 7 with its AI-powered features and seven years of software updates for long-term support and security. There’s a 5000mAh battery with only 45W wired and 15W wireless charging support, but Samsung has optimized battery life so you can go a full day without any problems.

The main sensor is 200MP for ultra-high-res shots, and there are two telephoto cameras (3x optical zoom and 5x periscope zoom) to make it more versatile in different shooting scenarios. Samsung’s AI processing is very important here, automatically enhancing details and colors. The 12MP selfie camera is optimized for social media with built-in enhancements that make photos look great straight out of the camera.

Camera Test and Real-World Shots

In our tests, the S25 Ultra’s 200MP sensor produced sharp, colorful images with plenty of detail. Samsung’s image processing is on the aggressive side, so colors tend to look more vivid than they would in real life. That can be good for social media, but not so good for people who prefer more natural tones. The dual-zoom system gives it an edge over the Xiaomi 15 Ultra, too, as you’ll have more flexibility when it comes to zoom shots. Night mode is powered by AI and automatically reduces noise and enhances clarity. Samsung’s video recording is also among the best, with 8K and Super Steady modes producing cinematic results.

Which One Should You Choose?

Both phones are great, but they’re both doing something a little different. If you want the fastest charging, the biggest battery, and the best camera system with a Leica tuning, pick the Xiaomi 15 Ultra. If you want longer software support, an optimized camera system with AI enhancements, and the additional functionality of the S Pen, you’ll want to pick the Galaxy S25 Ultra.