Apple in WWDC 2015 introduced its new OS for its Apple Watch called as the Watch OS 2 . The Watch OS 2 will be available as a free update this fall, and will work on every Apple Watch. So here is the list of all the new feature you will see in Watch OS 2 :

  • You can pick an image from the Photos app on your watch and set it as your watch face.Or set a different image from any photo album you select to appear each time you raise your wrist. 

  • Another new watch face, called Time-Lapse, shows iconic locations around the world shot over 24 hours.

  • watchOS 2 lets you see information from third-party apps on your watch face. 

  • When you turn the Digital Crown, Time Travel lets you see things like upcoming events and temperatures.

    You can go forward and back up to 72 hours. 

  • When Apple Watch is on its side and charging, it automatically goes into Nightstand mode.

    The Digital Crown transforms to snooze and the side button turns off an alarm. 

  • You can have multiple screens for friends and even add new people right from your watch. 

  • You can use multiple colors to draw and send more colorful sketches. 

  • Reply to email directly from your wrist with smart replies, emoji, and dictation. 

  • Other fitness apps, like Strava, can contribute directly to your Activity rings on Apple Watch. 

  • You can use Siri to start and end workouts, like a bike ride or a 30-minute outdoor run. 

  • Share your Activity and Workout achievements via Facebook, Twitter, and Messages. 

  • All the new features of Apple Pay are also available on Apple Watch.

    In addition to debit and credit cards, you can add everything from reward cards to private-label cards. 

  • Use the Transit feature in Maps to see public transportation routes and directions right on your wrist. 

  • With HomeKit, you can directly control lights and other things in your home from Apple Watch apps.   

We’re really excited to have Apple Watch out in the world.  We can’t wait to see what developers will do with watchOS. – Tim Cook