Just wondering how many other users are experiencing problems when swimming over 70 lengths of a 25m pool. My watch worked perfectly up until February but then it started crashing at around 1650m so I had it replaced under warranty, only for the second unit to have exactly the same issue. Garmin support are aware of the issue and deveopers are looking into it but 3 months and 3 updates later it's still the same problem. I keep sending zipped Garmin folders to the support team whenever the latest update is released and I try an uninterrupted swim.
I bought the watch specifically for swim tracking, I swim 3km three or four times per week. My work around for now is pausing the swim after 60 lengths then resuming for the next 60. However, stopping, holding the button to unlock the screen, releasing the button, holding the button to pause before pressing it and finally setting off again is becoming tiresome. I am seriously considering getting a refund so that I can get one of Samsung Galaxy watch's offerings.
Update: Software version 4.3 no longer crashes when swimming up to 3000m.