The vivofit 2 will autosync to your compatible smartphone once you reach 2000 steps within 60 minutes1 or after an activity is recorded.
In addition the following requirements must be met as well.
* The device must be in its normal page loop, not on the sleep page.
* The device will not sync when using HRM or in an activity.
* The device will only sync to connections that have successfully paired in the past.
The vivofit 2 will time out after 8 seconds when trying to autosync, or 30 seconds for the manual sync. By default the device will attempt only 8 auto-syncs per day, regardless of success or failure.
This count resets after every successful sync, manual or auto.
Is there some way to force an activity to upload to Garmin connect? My Vivoactive says it is connected by Bluetooth (and notifications from my phone are coming through on it fine) but the run I finished two hours ago still hasn't uploaded. This has happened a few times and I've managed to get them to upload by turning Bluetooth on and off, turning the phone on and off, playing around with Connect etc until somehow it magically decided to sync, but today nothing is working. If only there was a button I could press to tell it to sync now...
I have an iPhone and occasionally run into this. Usually it syncs whenever I open the GC ios app. When it doesn't, I can usually get it to sync by playing with it as you do. However, sometimes nothing works. If I try again later it magically works. I also wish there was a button to sync now. Have you updated your app to 3.2 (or now 3.2.1)? Seems to be better since then.