Xiaomi Watch S4 is a smartwatch that lets you change the whole look on a whim.

The interchangeable bezel system — one of the most distinctive design features in the lineup — lets you twist off the bezel and swap in a new one, with the watch face automatically switching to match. Combined with swappable bands, you can take the Watch S4 from sporty to dressy without buying a different watch.

The 1.43-inch AMOLED display now hits 2,200 nits peak brightness — brighter than many flagship smartwatches at twice the price — behind scratch-resistant sapphire glass. HyperOS 2 powers the experience, with gesture controls letting you reject calls, take photos remotely, and open apps with a wrist flick. NFC contactless payments support Mastercard and Visa.

Health tracking covers continuous heart rate, SpO2, stress, sleep stages, and 100+ sport profiles with built-in GPS. Smart home control via Xiaomi's ecosystem rounds out the connected experience.