What you are looking at is not some kind of Bluetooth earphone, but it is one of those wearable devices. The SensoTRACK is not one that wears on the wrist like many health trackers, but on the ear, near a temporal artery. So what does it measure? It can do respiration, heart rates, real-time blood pressure reading, and it even detect oxygen saturation in your body. Then … [Read more...] about SensoTRACK, a wearable health and activity monitor