Same problem. Seems to be at about 1000 meters but might be time related since I am pretty consistent. I swim for 15 minutes, save the activity and then start another one. Means Strava looks a little strange with multiple swims but I have not had any problems doing this.
Sorry, just added this as a separate question:
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.
Hi,
I have exact the same issue with , had this a few times while swimming in a pool.
The problem appears when swimming longer than 30 minutes, after that as described my watch restarts with the blue triangle.
It's an really frustrating problem, and for a Garmin watch in this price categorie I expected a faster solution.
This happened to me last weekend, around 29:45 into a 30min swim. My daily activities on the watch showed 9:59:59 for the swim, but iConnect reported ~24 min.
The same thing happened today, near the end of a 30m swim, but daily view on the watch and the iConnect app were in sync (showing 42 minutes of my ~46min of swimming)
I just purchased the new Forerunner 245 Music. First swim went ok after some trial and errors but my next swim the watch automatically ended my swim after about 10 laps. I started again and it was fine but as I neared the end of my last 40 laps it again reset. I assume software is the same so wondering if anyone got this figured out. Thinking of returning if people find this a reoccuring issue and not a once every 100 swim type thing (which I can deal with).