From the supplied ORB Sport guide
Step-by-step instructions
Step 1
From the 'Home' screen of the app, navigate to the 'Record' tab by tapping the 'Record' icon at the bottom navigation bar.
Step 2
Prior to initiating your session, you can select your sport. The default is set to your Primary Sport, which you can update anytime in your Profile Settings. Additionally, you can choose the Session type between Competition and Training. When you're ready to get active tap 'Start Session' at the bottom of your screen to kick things off.
Step 3
Now that your session is underway, you can focus on your performance.