Smart watches differ from hybrid watches because they have a digital screen. You can use them as an extension of your smartphone. For example, it's possible to make calls and receive and send messages via a smartwatch. Brief introduction of watch function

Why does blood pressure value deviate from sphygmomanometer?

The deviation between watch and sphygmomanometer is determined by a variety of factors. The sphygmomanometer is measured in brachial artery, and the watch is measured in the two main branches of arterioles. Under normal circumstances, aortic blood pressure measured and blood pressure measured in the arterioles will differ from thirty to forty. Flow of blood in the artery is in centrifugal direction, when the sphygmomanometer measurement strap tightens your elbow below the middle part of the pressure state, temporarily blood can not flow smoothly to the artery branch below; If you use the watch and a sphygmomanometer to measure at the same time, increased vascular tension will lead to greater deviation in upper and lower blood pressure measurements.

Why can’t you wear a watch to take a hot bath?

emperature of the bath water is relatively high, which produces a lot of water vapor, and the water vapor may infiltrate from the watch shell gap. When the temperature falls down the vapor will condense into liquid droplets, causing an internal short circuit, damaging the circuit board of the watch.