My smartwatch has literally changed my life. I got it because I needed to keep track of blood oxygen on a regular basis for a medical condition, and while the finger clip reader was okay I wanted something I had on me all the time. But the mere fact that I could see, on an ongoing basis, how many calories I was burning was extremely motivating to my adhd mind, and I started exercising, then tracking calories and dieting, I’ve built muscle, lost fat, and actually changed my lifestyle in general. And don’t tell me I could have done those things without a smartwatch— years of empirical evidence contradict that statement.