When I use the Bluetooth feature my activities are auto-uploaded as soon as I end the activity on the road. It works great, however, I also remember selecting 'delete activity after upload' on either the Garmin device, the Garmin Connect online dashboard, or my Android app. The problem is since the device is uploaded on the road, it eletes from the device right away and I can't view my stats, and sharing with Strava becomes more difficult.
I can't remember where I opted to delete activities after upload, so because now I want to opt out. I think.