Apple Watch
Start and control workouts from Apple Watch while Pulse Link sends live heart rate and workout progress to the paired iPhone for Bluetooth broadcasting.
How It Works
- TrackStart a workout using Apple Watch, or use compatible AirPods with heart-rate sensing on iOS 26 or later.
- RelayPulse Link securely relays the live workout state to the iPhone.
- BroadcastThe iPhone appears to nearby compatible equipment and apps as a standard Bluetooth heart-rate monitor.
Bluetooth broadcasting happens locally between your devices. Internet access is not required for the live heart-rate connection.
Apple Watch or compatible AirPodsiPhoneFitness equipment or app
Choose Your Heart-Rate Source
Compatible AirPods
On iOS 26 or later, compatible AirPods with heart-rate sensing can power an iPhone-owned workout. You can monitor it from Apple Watch and take over with Apple Watch sensors when needed.
Feature Highlights
- Standard Bluetooth heart rate — Connect to compatible fitness equipment and training apps as a Bluetooth heart-rate monitor.
- Broadcast Warmup — Start broadcasting before a workout so receivers have time to connect. A manually started warmup stays available after the workout until you stop it.
- Live workout status — Follow heart rate, workout time, zone, and connection state from the iPhone, Apple Watch, and supported Live Activities.
- Cross-device control — Start from the workout owner and request a stop from either device while Pulse Link keeps both screens in sync.
- Workout summaries — Review duration, average and maximum heart rate, active energy, and time in each heart-rate zone.
- Apple Health choices — Save workouts automatically, or choose whether to keep or delete a completed workout when automatic saving is disabled.
Train with the Zone Method That Suits You
Pulse Link provides five training zones and keeps the selected boundaries consistent throughout each workout, including alerts and summaries.
- Karvonen
- Uses maximum and resting heart rate to calculate zones from heart-rate reserve. Age and resting heart rate can be read from Apple Health or entered manually.
- Simple
- Uses age and the empirical 220 − age maximum-heart-rate estimate. Resting heart rate is not required.
Compatibility
Pulse Link requires iOS 17.6 or later and watchOS 10.6 or later for the Apple Watch experience. Apple Watch Series 4 or later is supported. AirPods heart-rate workouts require iOS 26 or later and compatible AirPods with heart-rate sensing. Bluetooth receiving features depend on the equipment or app supporting the standard Bluetooth Heart Rate Service.
Designed for Privacy
Your workout data stays on your devices and in Apple Health according to your choices. Pulse Link has no account, analytics, advertising, or cloud workout processing. Live heart rate is relayed locally between Apple Watch, iPhone, and connected Bluetooth receivers.
What’s New in Pulse Link 2.0
Pulse Link 2.0 adds heart-rate workouts using compatible AirPods with heart-rate sensing on iOS 26 or later, Live Activities, Broadcast Warmup, Karvonen and Simple training-zone methods, stronger cross-device recovery, and improved workout summaries. Existing settings are migrated automatically. Update both the iPhone and Apple Watch apps for the complete experience.
Frequently Asked Questions
- Does Pulse Link need an internet connection?
- No internet connection is required for live heart-rate relay or Bluetooth broadcasting. Apple services and App Store functions may have their own connectivity requirements.
- Why start Broadcast Warmup before a workout?
- Broadcast Warmup lets nearby equipment or a training app connect to the iPhone before heart-rate data begins. If you start warmup manually, it remains active after the workout until you stop it.
- Can I use AirPods for heart rate?
- AirPods heart-rate workouts require iOS 26 or later and compatible AirPods with heart-rate sensing. Otherwise, Pulse Link uses Apple Watch as its heart-rate source.
- What happens when heart rate is below Zone 1?
- Pulse Link displays the live heart rate as below Zone 1. This is a valid reading, not a missing heart-rate signal.
- What happens if the heart-rate signal is interrupted?
- Pulse Link marks the reading as unavailable when sensor data becomes stale and resumes broadcasting fresh heart rate when the connection recovers.
- How are my training zones calculated?
- Karvonen uses maximum and resting heart rate. Simple uses age and the empirical 220 − age maximum-heart-rate estimate. You can manage the method and profile values in iPhone Settings.
- Is my workout saved to Apple Health?
- Automatic saving is enabled by default. If you turn it off, Pulse Link asks whether to keep or delete the completed workout.
Support
For help or questions, email pulse-link@humblemars.com.