If I unpair my watch will the data be lost?
If I unpair my watch from my phone because the phone is not being updated with info from my workout today, will my workout from today and past workouts be lost?
My experience is that workout data is passed to the phone very quickly, less than a minute if you have completed the workout. If you then unpair and re-pair as a new phone your workout data is transferred back to the phone. Other data such as wallet,music on the watch, or other app data may be lost.
I have done this many times and now have 2 watches paired to my X. If I change watches all workout data is synced although it may take 4-5 minutes.