Had to swap out my 620 on warranty. I synced it up with my phone prior to it going back. My new 620 is now synced up to the app also. However, I cannot remove the first 620 from the app. Am I missing a setting somewhere or is this functionality not there? I tried unistalling and reinstalling the app... no luck.
Unfortunately, there is not currently a way to remove devices from the Android version of the Garmin Connect Mobile application. Please feel free to suggest adding this ability to the application in the Garmin Connect Mobile Ideas and Suggestions thread. We value your feedback and use it to improve our products and applications. Thank you!