Surely dives are in History on the watch like any other activity?
Compare that to any other dive computer ever and I'd say it compares pretty favourably.
Maybe DiveMate (DM) https://www.divemate.de/de/home-de/ , https://play.google.com/store/apps/d...emateusb&hl=en has the right answer: I'am using their product since May 2014.
I was able to test uploads. At the moment it does not appear to function properly locally without internet access. I can't stress the "at this moment" part enough. This is new functionality being added into GCM and it's possible that this feature is planned.
IAdditionally. I'm currently working on support for the Descent within Subsurface. This is a personal project of mine and unrelated to Garmin in any way, shape, or form. It's been slow going as I'm new to the project, but hope to have something soon.