Inaccurate Sync Data
Before the Google Health app, Fitbit provided accurate data. Since Google Health took over the syncing of the wearable to the app is totally inaccurate and judging by social medium forums, I am not the only one. For example I went for a gentle 2 mile walk the other day. My wearable showed a maximum
HR of 96. But when I synced it to the app, the app showed 147. The same happens with swims or workout in the gym with incorrect readings of 157 when they should be around 108. The app is totally useless unless you want it as a step count.

