I have the Edge 510. What is the check mark by your activities data on the Garmin Connect site? There is a check mark by the data I uploaded to Garmin Connect. Thanks.
I am talking about Garmin Connect Mobile app on my phone.
I don't use the mobile app, but it might be similar to the check box you see after you've done "upload all activities" while on the web-site. It's just re-use of the page they'd show you if you'd selected to "upload selected activities". Save programing time and program memory usage. Remember "go green" re-use stuff! <grin>