See your heart rate anywhere
Step-by-step guides for keeping your zone in view while you train — over other apps, on the Lock Screen, or straight from a chest strap.
Guide
Chest Strap On iPhone Without A Watch
How to use a Bluetooth chest strap with Zonas on iPhone without Apple Watch, including pairing, workout saving, and what the app reads.
Read GuideHeart Rate In Dynamic Island
How Zonas shows live heart rate and zone data in the Dynamic Island through Live Activities during a workout.
Read GuidePicture-in-Picture Heart Rate
How Zonas uses iPhone Picture-in-Picture to keep live heart rate, zone, timer, and zone boundaries visible while you use other apps.
Read GuideSee Apple Watch Heart Rate On iPhone
How Zonas mirrors Apple Watch workout heart rate to iPhone so you can see zones on the phone while the Watch owns the workout.
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