You can do that offline with Garmin watches right now, along with heart rate data, and can view GPS+HR using a variety of online platforms like Strava. The .FIT

You can do that offline with Garmin watches right now, along with heart rate data, and can view GPS+HR using a variety of online platforms like Strava. The .FIT files are stored on the watch itself and can be accessed over USB. The online features that aren't currently working involve syncing wirelessly with your phone and their servers, and more uniquely analytics on training (effectiveness, recovery, records, etc.) that your method doesn't seem to offer.