One thing that people have not been able to figure out is how the iWatch is going to monitor all of the different health features that are rumored to be included. A Chinese analyst might have found the answer.
According to Apple Balla, a variety of features will be monitored using sensors that are optical based. Unfortunately, he also says that the glucose monitoring feature was sidelined after running into problems finding a non-invasive way of checking it that would be effective.
According to his sources, the iWatch is going to use pulse oximetry devices to accomplish the job. With these kinds of devices, they have traditionally been attached to fingers to function, something that might not work well with the iWatch. They focus on sending two different light wavelengths through a users skin, where it then pays attention to the way that the two light sources are absorbed.
This measures the amount of oxygen that is in the blood and can be a very helpful thing to monitor in the iWatch. It will also be useful for monitoring pulse. They have normally been difficult to pull off in a wrist based form, but if there was ever a company to do it it would be Apple. This kind of technology is incredibly new when it comes to monitoring the pulse rate, though. There have been a few devices that pulled it off, but monitoring heart rate normally requires a chest strap that can pay close attention to the heart.
How exactly Apple will pull it off remains to be seen. We know that there were a lot of different health professionals brought on board, meaning they might have put together enough man power to overcome almost any problem that they have with monitoring different health aspects.