I use FitBit for sleep, exercise, steps but have discovered NOOM which I use to log food, weight and other things. I love the graph for the weight which is a daily event. Shows the ups and downs from day to day, but for some reason, it helps me stay more focused on my health. I’m 74 with Hashimoto’s (for years) and for the past three or four I’ve been able to not increase my medications. Takes a lot of effort to lose a few pounds but at least I’m able to stay within the norms for my age and height. Soooo, the more we move, the healthier I truly believe we can be. AND, any device that helps—-go for it!