I use an edge 25 daily for commuting and I have 1000 that I use when I go on what I'd call proper runs out, with the 1000 without fail once a ride is saved its transferred straight to the Garmin app on my iPhone 6S however the 25 refuses to do this! I end up having to plug it into my Mac at the end of a week to load all the rides onto the Garmin connect app, I don't get it, it just will not send the data yet it comes up as connected to the phone!
Any ideas folks please?