Use the Apple Watch in the Water
If you buy the Apple Watch 2 (Apple Watch Series 2) you can now go swimming with your Apple Watch. The new model is water proof up to 50 meters thanks to an upgraded sealed design.
With this new Apple Watch you can swim, run in the rain, run a Tough Mudder and more without worrying about your Apple Watch. This works in fresh water, in pools and in the ocean.
The Apple Watch and Apple Watch Series 1 are not waterproof to this level, so don't try this with those models.