After the watch shipped, I discovered that I wasn’t the only
person interested in the watch’s ability to be used during swim
workouts. Ray Maker at the DC Rainmaker blog did a series of
including diving off a 10 meter (33 foot) platform and 40 meter
(130 foot) pressure test. The Apple Watch passed these tests
with flying colors, and along with the research below, I was
convinced I wouldn’t have any problems. So far, that analysis
has proven correct. I suspect that the watch’s water resistance
has been undersold by Apple just like battery life: it’s better
to under-promise and over-deliver. Still, it’s a personal
decision on whether you want to ignore Apple’s recommendation.
You’re not likely to get much sympathy at any subsequent trips
to the Genius Bar.
Lots of great information on what makes water so problematic for electronics. Loved his suggestion on the side button and workouts, too:
This situation reminds me a lot of the problem with a shutter
switch on the iPhone. When your attention needs to be focused on
framing your photo, finding a virtual button is counterproductive.
A physical button is much simpler and more practical, even if it’s
normally used to adjust the volume.
So why can’t the side button be used during a workout? A single
click could start or pause the workout; a double-click could stop
the workout. Maybe a triple-click could do something more advanced
like a lap time.