No watch. Just zones.
Connect a compatible Bluetooth heart-rate strap directly to your phone.
Connect
No watch. Just zones.
Connect a compatible Bluetooth heart-rate strap directly to your phone.
BUILT FOR THE WORK
The heart-rate monitor that stays out of your way.
No account. No smartwatch. No social feed. Just your chest strap, your phone and the feedback you need to train with intent.
Five zones. Zero guesswork.
See your current zone instantly and keep every effort intentional.
Train without staring.
Voice, tone and vibration alerts keep you on target while you move.
Build the session you need.
Create timed zone blocks, repeats and structured workouts in seconds.
Live, even when locked.
Follow BPM, zone, pace and distance from the lock screen.
Your workout goes with you.
Review the route, time in zone and export TCX to your sports platform.
BLUETOOTH LOW ENERGY
Built for standard BLE heart-rate sensors
No account
Open the app, pair your sensor and move. Exact heart-rate and GPS route data stay on your device unless you export them.
No watch
Your phone becomes the training display, coach and workout recorder.
No guesswork
Live zones and alerts make intensity obvious while you train.
LEARN THE SIGNAL
Train smarter with heart-rate zones.
01
Zone 2 training
Build your aerobic base and learn how to stay in the right range.
↗ 02Bluetooth HR monitors
Turn a chest strap and your phone into a focused training system.
↗ 03Train without a watch
Everything you need for live heart-rate training, nothing you do not.
↗ 04Compatible sensors
See which Bluetooth chest straps and broadcasting devices work.
↗
YOUR STRAP IS READY
Get Strap Zone
Bluetooth chest strap. Phone. Purposeful training.