Product Price Heart Rate Accuracy (%) Waterproof Rating (IPX) Battery Life (hours) Compatibility Chest Strap Material Monitoring Range (beats per minute (bpm))
Coospo Coospo H9Z
US
£32.46 +1 bpm IP67 50 hours Bluetooth 5.0 and ANT+

The Coospo H9Z is a rechargeable chest-strap heart rate monitor that broadcasts heart-rate data via Bluetooth 5.0 and ANT+. It supports HRV and heart rate zone tracking with a 5-color LED, and is rated IP67 for sweat and rain. It's designed for workouts where you want more stable heart-rate sensing than wrist/optical options and need compatibility with common fitness apps and bike computers.

★ Ideal for

It's a budget-friendly chest strap option because it offers 50 hours battery life on each charge and dual Bluetooth 5.0 and ANT+ compatibility, plus IP67 waterproofing.