[DocL]

I'm really glad to hear about the medical benefits that some of you have mentioned. They are good at alerting you if are having an irregular heart rate, or low SaO2. However I can also say with confidence that they don't usually provide all the information completely objectively.

I treat patients for OSA and one of my patients was using his AW and an app to monitor his sleep while he was using my appliance therapy. He called me up pissed off that my treatment was making him worse according to his watch and app. I had him come in and I administered a home sleep study (HST) and compared it to the original HST I did on him. My treatment resulted in a 75% reduction in his AHI and I told him to remove the sleep app from his phone.

So for basic cardiac information these watches and apps are vey useful. I don't have an Apple Watch, but I do wear a Samsung Galaxy SW and rarely wear any analog watches from my collection.