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if you get a smartwatch by yourself look that you get one with a working ECG. you can measure your blood pressure by the one channel ECG. smartwatches have a super wide application field. you could literary control your smart home with it and control your pc with it. besides the medical applications and the stuff what's already possible. so leaving your smartphone at home and go for a jog and still track your gps, while you track your health data and you can (could with mine) listen to music. smartwatches are very rudimentary in their present state. desu the government should have a program to make good medical smartwatches so they can collect health data of the people and use them in supercomputers so they can help the people by health. would be great as a warning system and would safe many lives. as in keeping them living and improving their life quality by government directed interventions. people with depression and other health issues could profit dramatically from it. children with bad medical data and bad grades could be send a doctor to their school so they could help them, which would go undetected in present society.