Training zones. Your heart rate now shows the zone you are in, from Zone 1 to Zone 5, and the whole display takes that zone's colour. Set your maximum heart rate and adjust where each zone starts in Settings. Heart rate variability. Chest straps report the interval between beats, and Heart Rate now reads it. Your HRV appears next to the battery level once enough beats have been seen, and is saved with every session. Sessions are kept. Each measurement is saved automatically and listed under the share button with its duration, average, maximum and HRV. Export any of them as a CSV with real timestamps. A clearer screen. The graph has been redrawn, settings have moved behind a gear in the corner, and the app now walks you through pairing a monitor the first time you use it. The screen stays awake while you are measuring, and the layout now fits iPad properly.