With features like built-in GPS and altimeter, Apple Watch Nike+ is designed to help you take your run to the next level. You can even pair your watch wirelessly with compatible gym equipment. Automatically sync your playlists for more motivation. And because Apple Watch Nike+ is swimproof, you can take a post-run dip in the pool.
Apple Watch Series 3 (GPS) requires an iPhone 5s or later with iOS 11 or later.
 Compared with the previous generation.  ISO standard 22810:2010. Appropriate for shallow-water activities like swimming. Submersion below shallow depth and high-velocity water activities are not recommended.