On October 19, it was reported by foreign media that Samsung was developing a smart ring to help users monitor their health. According to foreign media, Samsung is cooperating with many companies to obtain the parts and modules needed for the ring. Last year, Samsung also applied to USPTO (United States Patent and Trademark Office) for a patent of smart ring. The ring has an optical heart rate monitor and an ECG (electrocardiogram) sensor, and can be used to control smartphones, tablets, or televisions. Market research companies believe that smart rings will become more and more popular in the coming years, because users can wear them for a long time and monitor their health more accurately through this device. At the same time, in general, the life of the smart ring is longer than that of the smart watch, because the former is not equipped with a display screen. (Liu Xinshe)