You already have the ability to edit weight on your device which will be uploaded to GC.
And 5 years later this is still not possible.
It is, see
Nope. That is a third party app. This should be a built in glance or control.
EDIT: also I just tried that app. To enter your weight you have to drill down 3 or 4 menus. It is not quick or easy.
I've tried other third party apps too. All have issues. The best of a bad bunch still has the same issue as all ConnectIQ apps, if the app is updated you lose all your data. Plus it only stores 60 readings.
This is a basic fitness metric and needs a simple control or glance built in by Garmin so users can enter and track it from the watch.
Yes, the app provides much more metrics than weight, and starting it from the widget there is one menue to input data.
And it's the only CIQ app i know which provides upload of health data to garmin connect, and therefore you do not loose data.
Or do you want to keep all the history on the watch?
Maybe the App could be drilled down only for weight.