How to sync popular fitness apps to your Apple Watch

Apple Watch | Photo by Amelia Holowaty Krales / The Verge With about a quarter of the worldwide market, the Apple Watch is far and away the most popular fitness watch. Many of its wearers, though, want to track their activity with third-party applications. If you’re one of their number, don’t fret — happily, the Watch’s popularity means that many commonly used apps — such as MyFitnessPal, Couch to 5K, Strava, and Nike Training — have made that process pretty