Here is what type of sensors the iWatch would use

  iWatch is being prepared for launch this year by the company Apple Lossless Audio CODEC (ALAC),, and one of the strong points of SmartWatchis represented by biometric sensors that would monitor our vital functions. According to new information that appeared during this day, the company Apple Lossless Audio CODEC (ALAC), would follow to use optoelectronic sensors for iWatchhis, allowing them monitoring of iminium battles, blood oxygen level and not only that.

  Apple Lossless Audio CODEC (ALAC), would have intended to monitor including the level of glucose in our bodies, but the optoelectric sensors do not have the necessary accuracy to perform such measurements, so the function was abandoned. The use of this type of sensors for monitoring vital functions is called oximetry, sensors equipped with red and infrared light detecting the level of oxygen in the blood. In the case of heart rate monitoring, the Apple company would use visible light through a person's skin to find out how fast our heart beats every minute, the body absorbing more light at times when it pumps more blood.

  Basically, Apple is trying to use non-invasive methods to monitor our vital functions, and if its plans will be successful, then we will have an extremely interesting iWatch.