The other big improvement in Apple Watch Series 2 is that it’s waterproof

Explained

ATM

Not a cash machine – here, ATM is short for ‘atmospheres’ and is used to describe the water resistance of swimming watches. Apple Watch Series 2 is water-resistant to a depth of 50m, which is equivalent to 5ATM, although some watches go up to 10ATM.

Water Mus ic On Th e Ru n

The Nike+ version of Watch Series 2 includes a special lightweight strap, and the Run Club app that lets you share performance data with your friends and provides a Complication that enables you to quickly open the app. Apple can be really smart sometimes – Watch Series 2 uses the vibrations of its tiny built-in speaker to shake out any water after you’ve been swimming.