In addition to manufacturing the main products, smartphones, Xiaomi is actively developing various new products in the field of mobile and computer devices. The expansion of the range of manufactured gadgets is due to the company’s investment activities in the field of small startups, among which very promising developments are constantly appearing. One of Xiaomi’s brainchildren was the WeLoop Hey 3S smart watch, whose appearance users immediately associated with the sports version of the Apple Watch. However, the Chinese version has two significant advantages over the gadget from the apple corporation: price and battery life. WeLoop Hey 3S is priced at $ 78, and the battery life is about 30 days, which is many times higher than Apple’s watch (for example, Watch Nike + works autonomously up to 18 hours). Other functions of the WeLoop Hey 3S watch allow you to estimate the number of steps taken, calories burned, and carry out a pulse count. Using Bluetooth 4.2, you can control the smartphone’s music player and receive notifications from the watch. Navigation is carried out due to the built-in GPS and GLONASS modules. The resolution of the 1.28-inch display is 176×176 pixels. The case is waterproof and allows immersion to a depth of 50 m. The watch weighs 38 grams and they are available in several color combinations.