pretty cool - anecdotally I've had a funny call or two involving Apple watches (as an EMT). My favorite was during a local celebration of the "Holi" festival

pretty cool - anecdotally I've had a funny call or two involving Apple watches (as an EMT). My favorite was during a local celebration of the "Holi" festival (aka Indian festival of colors). It was setup in a waterfront park and we had an EMS station and got a series of calls through the day. One case a young woman came up to our station to say a guy was maybe having a heart attack... We followed her to a tall, lanky college age kid seated on a stone bench freaking out - labored rapid breathing, etc Talked to him a bit to get some history and he kept showing us his watch - his skin and watch (and just about everything else) was caked in the fine dust which folks were throwing into the air and at each other. It was reading some absurdly high (or low I don't remember) pulse rate. But the guy was talking in full sentences - had good perfusion and seemed to know who he was and where he was, etc. I don't remember if we gave him oxygen - we took his vitals manually and eventually convinced him that the watch was not reading correctly. He calmed down and refused further attention and was back hurling packets of colored dust at his buddies in a few minutes... Its awesome people are using these devices (pulse ox devices are excellent for detectign silent hypoxia in Covid cases even before a person has obvious signs - see recent NYTimes opinion piece) Even if they are nto accurate (and they generally arent) they give the person a baseline. "Usually my pulse is x and now it is y" is useful information for an EMT anyway (we don't diagnose as we are not doctors - we look for obvious life threats and rate of change for various external signs). Just don't freak out if your device is malfuntioning. Have a second or third way to verify a vital sign...