Good for you and congratulations, but it was most likely due to your own hard work along with dietary adjustment, so you need not diminish your accomplishment by giving a device as much credit as you give yourself. The Watch really didn't do anything but keep time; you yourself did everything and filled the time.
Comparing egotistical obsession to neatness and an Apple Watch gathering absurdly detailed metrics in a running application to a calendar is both false analogy and oversimplification. The last part is ad hominem attack.