If you entered the wrong starting weight when you signed up, or want to adjust it, you can update it yourself from your profile. This works the same way whether you use a smart scale or log your weight manually.
Step 1: Open your profile
On the My Day screen, tap the profile icon in the top-right corner.
Step 2: Go to the About tab
At the top of My Profile, tap About. Under General, you'll see your Starting weight.
Step 3: Tap your starting weight
Tap the edit icon next to your current starting weight to open the weight selector.
Step 4: Adjust and save
Scroll the dial left or right until it shows the weight you want, then tap Update weight. If you change your mind, tap Cancel to keep your current weight.
That's it. Your new starting weight is saved, and your progress will be measured from it.