Xiaomi 15 Ultra vs Xiaomi 17 Ultra: Comparison

In the ever-evolving world of smartphones, Xiaomi continues to push boundaries and set new standards with their latest releases. In this article, we will be comparing two of Xiaomi's high-end smartphones, the Xiaomi 15 Ultra and the Xiaomi 17 Ultra.

Let's start with the Xiaomi 15 Ultra, which was released in February 2025. This powerhouse of a smartphone boasts a stunning design and top-of-the-line materials. With a 6.73-inch AMOLED screen with a resolution of 1440x3200 (WQHD+), a refresh rate of 120 Hz, and a peak brightness of 3200 cd/m², the display on the Xiaomi 15 Ultra is truly a sight to behold. The screen is protected by Corning Gorilla Glass Victus 2, ensuring durability and scratch resistance.

The Xiaomi 15 Ultra also features a top-notch audio experience with stereo speakers, Hi-Res Audio, and Dolby Atmos support. The materials used in the construction of the phone include aluminium alloy, ceramics, and titanium, giving it a premium feel and added durability. The device has a usable surface of 89.6% and comes in varying thicknesses and weights depending on the color variant.

Under the hood, the Xiaomi 15 Ultra is powered by the Qualcomm Snapdragon 8 Elite processor, paired with up to 16GB of RAM and up to 1TB of storage. The AnTuTu benchmark score of 2966580 indicates that this smartphone is a performance beast. In terms of security, the phone features a fingerprint display and a cooling system to prevent overheating during intensive use.

When it comes to photography, the Xiaomi 15 Ultra does not disappoint. It features a quadruple camera setup with impressive specs, including a 50.0MP standard camera, a wide-angle + macro lens, a telephoto lens, and a telephoto + portrait lens. The selfie camera is also impressive, with a 32.0MP sensor. Other camera features include optical stabilization, 4K and 8K video recording, and up to 120x digital zoom.

Connectivity options on the Xiaomi 15 Ultra include Bluetooth 6.0, dual SIM support, NFC, WiFi 6, GPS, infrared, and eSIM. The phone is powered by a sizable 5410mAh battery with 90.0W fast charging, wireless charging, and reverse charging capabilities.

Moving on to the Xiaomi 17 Ultra, which was released in December 2025, we see another top-tier offering from Xiaomi. This smartphone features a slightly larger 6.90-inch AMOLED screen with a resolution of 1200x2608 (QHD) and a peak brightness of 3500 cd/m². The display also supports HDR10+ for vibrant and true-to-life colors.

Like its predecessor, the Xiaomi 17 Ultra sports stereo speakers, Hi-Res Audio, and Dolby Atmos for an immersive audio experience. The materials used in the construction of this phone include aluminium alloy and titanium, giving it a sleek and modern look. One standout feature is the green color variant, which adds a unique touch to the design.

Under the hood, the Xiaomi 17 Ultra is powered by the Qualcomm Snapdragon 8 Elite Gen 5 processor, paired with up to 16GB of RAM and up to 1TB of storage. The AnTuTu benchmark score of 4027702 indicates that this smartphone is a performance powerhouse. Security features include a fingerprint display and a cooling system to keep temperatures in check.

In the camera department, the Xiaomi 17 Ultra features a triple camera setup with a focus on quality and versatility. The 50.0MP standard camera, wide-angle + macro lens, and telephoto lens deliver stunning images and videos. The selfie camera is also impressive, with a 50.0MP sensor. Additional features include optical stabilization, 4K and 8K video recording, and advanced zoom capabilities.

Connectivity options on the Xiaomi 17 Ultra mirror those of the Xiaomi 15 Ultra, with Bluetooth 6.0, dual SIM support, NFC, WiFi 6, GPS, infrared, and eSIM. The phone is powered by a massive 6000mAh battery with 90.0W fast charging, wireless charging, and reverse charging capabilities.

In conclusion, both the Xiaomi 15 Ultra and the Xiaomi 17 Ultra are prime examples of Xiaomi's commitment to innovation and excellence in the smartphone market. With top-of-the-line features, cutting-edge technology, and stunning design, these smartphones are sure to impress even the most discerning tech enthusiasts. Whether you opt for the Xiaomi 15 Ultra or the Xiaomi 17 Ultra, you can rest assured that you are getting a truly premium smartphone experience.