The functions of smart watches seem to be more and more, but basically there are two types: sports functions and health functions. The movement function revolves around some common movement ways. Watches play the role of recording and reminding. Whether bracelets or watches, the movement function is basically similar, and even the movement sensors used by different brands of watches come from the same supplier.

Health function tests the R & D ability of manufacturers, and it is also the place with the highest gold content of technology on smart watches. If you only consider sports, a smart bracelet with less than 300 yuan is the best choice, and if you want more experience, you have to consider the health function.

At present, the health-related functions on smart watches include biochemical functions such as heart rate monitoring and blood oxygen saturation detection, as well as accidental detection such as falls and collisions. Although these functions seem too conceptual, they will really save people's lives at critical moments in specific use.

Heart rate monitoring

Apple watch has been equipped with heart rate monitoring function earlier. Many users have been saved by wearing Apple watch, and many media have reported it for many times. For example, in April, 2018, when Skylar Joslin, an Oklahoma student, was in school, his watch gave a warning of abnormal heart rate. Joslin had suffered from tachycardia before, so he specially sent this reminder to his mother by text message. Subsequently, Joslin's mother immediately picked him up to the nearby emergency room for treatment, which took 7.5 hours before Joslin turned the corner.

Blood oxygen saturation detection

Blood oxygen saturation detection has been delegated to many smart watches. This function may not be commonly used in peacetime, but it really shows a sense of existence in the National Day holiday just past.

Many users who travel to plateau areas report that when there is a serious altitude reaction, the watch shows that the blood oxygen saturation is close to 80%, while the normal figure is between 95% and 100%. Many users basically adjust the stroke and oxygen intake rhythm according to the reminder of the watch. In addition, pneumonia often drops sharply with blood oxygen saturation. The UK provides oximeters to people in all high-risk areas, and smart watches equipped with blood oxygen saturation detection function have also become a hot commodity.

Fall detection

There are more examples of fall detection. When the user falls, the watch will judge the user's state. If the user cannot move, the watch will automatically send an alarm and send positioning information.

This function can provide potential protection for elderly users and users who love cycling and other sports. A young couple who were hiking in New Jersey accidentally fell off a cliff. They thought they would lose their life and die because of the fracture when they fell. Unexpectedly, their watch automatically dialed 911 to help them call rescue workers. On the Chinese Internet, a user shared a similar experience. He fell down riding at night and his mobile phone was unavailable on the spot. Apple watch contacted the "emergency contact" and was finally rescued. The user sent a thank-you letter to Apple CEO Tim Cook and received a reply.