I had my first chance to use the Ultra in the water the last couple of weeks - both in a chlorinated pool and the ocean.
Water detection works. Every time the watch knew it was under water, it turned on water lock automatically.
The Depth app didn't always turn on automatically, though. There were many times that the watch was just showing my watch face (though, as I said, it did properly water lock). But when it did work, it was accurate for depth, and I assume as well for water temperature.
Water detection works. Every time the watch knew it was under water, it turned on water lock automatically.
The Depth app didn't always turn on automatically, though. There were many times that the watch was just showing my watch face (though, as I said, it did properly water lock). But when it did work, it was accurate for depth, and I assume as well for water temperature.