As someone who owns a Fitbit, I think I'm qualified to tell that you have to be completely retarded to think that a Fitbit will help you lose weight.  Here's a what a Fitbit will do (Charge 2 HR in my case)  Count your steps with varying precision Roughly estimate the number of calories you burn. Pretty good app in which you can log in your calories, weight gain/loss goal, track your macros (unfortunately, only in % which can still be useful for doing keto) It shows your heartrate when you work out so it's useful in things like endurance cardio When synced to your phone, you see messages and calls on your watch for a fraction of the price of a smart watch  What a Fitbit won't do:  Make you go to the gym Make you count your calories. Stop you from ordering that extra large pizza when you already went your calorie limit for the day (not that a fat fuck would know that anyway) Making normal people believe that walking ten thousand steps in a day is impressive. Overcoming your terrible diet by reminding you to stand up for a minute every hour.   Only a fat fuck would believe that buying a watch is a first step towards weight loss. Weight loss is the only first step towards weight loss.