Your scale weigh-ins, in one running list — the same numbers the Coach nutrition card and your progress photos draw from.
The top card shows your latest weight. Below it, Log a weigh-in records a new entry in your weight unit for any date, and every entry you've logged appears in History underneath, most recent first, tagged with where it came from.
The source shown per entry is either Manual (logged here) or Health Connect (pulled in from that mirror) — both count the same way everywhere else in the app, including as the "nearest bodyweight" tag on your progress photos.
Related: "Body measurements", "Progress photos".