Number 2 and number 4 - this is what a "smart" watch should aim for. Being able to detect an early heart attack or low/high insulin levels and send out warning

Number 2 and number 4 - this is what a "smart" watch should aim for. Being able to detect an early heart attack or low/high insulin levels and send out warning SOS's to hospitals is a great idea. The amount of costs this would save, the lives this would save...but sending smiley face to someone is innovation. It amazes me how companies that have so much resources at their disposal cannot conduct research in these kind of domains.