Xiaomi announced the 17T and 17T Pro smartphones, both co-developed with Leica and carrying forward the camera-focused positioning that has defined the partnership between the two companies since it was formalized several years ago.

The two models share a triple rear camera configuration, though with differences in the primary sensor. The standard 17T is the smaller of the two, with a 6.56-inch display, and uses a 50-megapixel main camera built around a Type 1/1.55 sensor with an equivalent focal length of 23mm and an aperture of f/1.7. The 17T Pro has a 6.83-inch screen and a larger Type 1/1.31 sensor of the same resolution and focal length, also at f/1.7. Both devices use an optical design that Xiaomi and Leica describe as UltraPure, incorporating a hybrid Summilux lens structure. The Summilux designation is borrowed from Leica’s own lens naming conventions, where it traditionally denotes a fast prime with specific optical characteristics.

The telephoto camera is identical across both models and represents a new addition to the T series: a 50-megapixel periscope telephoto with 5x optical zoom and an equivalent focal length of 115mm at f/3. The sensor used here is smaller, at Type 1/2.76. Xiaomi states the lens is also capable of macro photography and supports what the company calls 10x optical-grade zoom, a term that encompasses the periscope mechanism’s effective range. Beyond that, both phones offer a 120x zoom mode that relies on AI processing, marketed as AI Ultra Zoom. The ultra-wide camera is also shared between the two models: a 12-megapixel unit with a Type 1/3.06 sensor, covering a 120-degree field of view equivalent to approximately 15mm.