<ul><li>Xiaomi introduced a new Watch S4 version called the Xiaomi Watch S4 15th Anniversary Edition to celebrate the company's 15th birthday.</li><li>The new Xiaomi Watch S4 uses an in-house Xring T1 chip with a 4G LTE modem developed by Xiaomi, claiming to be 35% more efficient than the previous model.</li><li>The Watch S4 can last up to 9 days with network connectivity, up to 15 days when connected to a phone with raise-to-wake, and supports features like controlling the phone's camera remotely and animated wallpaper.</li><li>Xiaomi's first 4G modem in the Watch S4 marks its entry into the modem business, and the watch can also remotely unlock Xiaomi cars and operate trunk locks.</li></ul>

New Xiaomi Watch S4 version uses custom Xring T1 chipset - with Xiaomi's first 4G modem

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