Super boring, but we just bought a Braun ear digital thermometer, on the suggestion of a health care professional that ear measurements are the most accurate after, well, you know the other measurement. Down there...
I haven't checked whether the Braun has bluetooth or an app. I know that Omron offers bluetooth blood pressure devices. My Omron is an older/simpler version without bluetooth.
I'm probably going to get the 6 lead Kardia ekg device sometime this year. I read an NIH study that suggests the 6 lead device is as effective as a 12 lead device for indicating concerns.
Has anyone started using, or added new, digital DIY home health tools?