I use the FR645 which has no body battery while my wife has the fr245 which has body battery. She never wears her FR245 at night so sleep traking is not an issue for her.
However, I thought I might like the body battery concept so I have worn her watch the last 2 nights for sleeping. It is on her account so I synced wih her GArmin Connect. However, I do not get any sleep or body battery results.
Do I have to turn on a setting that is possibly off, or is sleep and bb working at the moment?
TIA.