The author mentions that he would design a system with a continuously monitored pulse oximeter that could trigger the EPS descent mode automatically. Do wrist-m

The author mentions that he would design a system with a continuously monitored pulse oximeter that could trigger the EPS descent mode automatically. Do wrist-mounted versions (fingertip ones would probably be too bulky/uncomfortable for continuous use by someone at the controls) of such continuous oximeters exist at the moment? The Apple Watch apparently has a sensor capable of measuring blood oxygen content, but disabled that functionality for unstated reasons (FDA regs?) [1], and I'm unaware of any extant wrist-worn device with that functionality enabled. [1] https://9to5mac.com/2015/04/24/apple-watch-blood-oxygen/ https://9to5mac.com/2015/04/24/apple-watch-blood-oxygen/ Some more information about the physiology of hypoxia can be found here: https://web.archive.org/web/20150318011408/dr-amy.com/rich/oxygen https://web.archive.org/web/20150318011408/dr-amy.com/rich/o...