Chest Straps Sigma

Experience precise heart‑rate tracking with the Sigma STS R1 Zender Smart, featuring a lightweight Comfortex chest strap that delivers clear ANT+ and Bluetooth signals for seamless data sync to any compatible device.

Discover the Sigma R1 Bluetooth Comfortex heart rate monitor and chest strap combo, perfect for seamless fitness tracking. Ideal for cycling enthusiasts, this unisex device ensures accurate readings and reliable connectivity, enhancing your workouts.

Sigma R1 ANT+ Comfortex Chest Strap compatible with ROX 10.0/11.0, provides heart rate data to compatible devices and ensures a secure and comfortable fit during workouts.

Experience precise heart rate monitoring with the Sigma 25.10 HRM Chest Belt. Designed for optimal comfort, this strap features an innovative elastic band and easy-to-use sensor placement, ensuring accurate readings during all your workouts.