TidBITS:

Thanks to its health monitoring features, the new Apple Watch Series 4 will save lives, probably within weeks of launch. I’ve been on real calls that may have had happier endings had the person been wearing one. I don’t know if wearing one would have saved that first victim—probably not—but Apple should get full credit for building a mainstream device that will save some lives.

That doesn’t mean it’s perfect.

Rich Mogull is not only my go-to Mac Security guy, but he’s also been a licensed paramedic for many years. His perspective on this particular feature is very interesting.