Feeling a bit light headed? Want to know your heart rate? Need a quick automated medical exam? Maybe not, but even so the Zensorium Tinke ($119) is a fantastic little wellness and stress level monitor. It can be placed straight onto an Apple iPhone, and then a thumb placed on the device will begin reading vital medical information. Heart rate, blood oxygen, heart rhythm, and breathing rate are all monitored and all with just one pinch of the thumb.