Yes, you can. Starting from version 1.5 Polar Beat offers an Apple Watch app for iPhone.
Here are a few tips on how to use it:
- On first launch, first start the app on your iPhone and then on your watch.
- Remember to keep the iPhone nearby or with you during your workout.
- To get your heart rate data, you must use the Polar H7 heart rate sensor with a chest strap and have it paired it with the Beat app in your phone.
- To select a Sport and a Target for your training session, press firmly (force touch) on the start display to bring up the options.
- To quickly select from your recent sports, just turn the Digital Crown on your Apple Watch and tap the one you want.
- To start a session, simply tap START.
- During training sessions, press firmly (force touch) on any of the training displays to Stop, Pause or Continue the session:
To wake your Apple Watch display to Polar Beat view during training sessions, you need to change a setting on your watch: Go to Settings > General > Activate on wrist raise > Toggle it on and choose Last Used App under RESUME TO.