Runkeeper got an updated app for Apple Watch that requires the new version of the platform, watchOS 2. What makes it better than the original release is that it can work even without an iPhone around; actually, you’ll need to bring the iPhone along for couple of runs/walks so that the app can calibrate, but after those few times – you’re no longer required to carry the phone on your runs.

The application provides current heart rate while on the run, which will then be synced with the Runkeeper app on the iPhone to provide a heart rate chart in the activity summary screen. Also, on the Watch, users will get a recap of their run’s stats, including distance, duration, average pace, and average heart rate.

Since the Apple Watch lacks GPS, a map of the run won’t be available in the Runkeeper app on the iPhone.However, since the Apple Watch lacks GPS, a map of the run won’t be available in the Runkeeper app on the iPhone. Also, the post-activity summary for runs tracked in untethered mode shows average pace, not split times or pace charts. Due to these limitations, you can’t share activities tracked solely on the Watch on Facebook and Twitter.

Going forward, the Runkeeper team hopes to add pace charts, split times, heart-rate zones, and more.

Finally, the iPhone app also got a small update to include post-run music analytics, to provide users with information which song best affects their pace (for instance).