: New units are listed for around $99.99 , with pre-owned modules often available at lower price points. Essential Accessories To keep your in peak condition, consider these replacement parts: MZ-3 Heart Rate Monitor - Myzone

: Offers the monitor with a belt for approximately $149.00 .

: A single charge lasts up to 300 hours of active use (roughly 3–6 months depending on activity).

The is a high-precision chest strap heart rate monitor known for its 99.4% accuracy , comparable to professional EKG machines. It is designed to "gamify" fitness by tracking effort through Myzone Effort Points (MEPs) , allowing users to compete with friends and community members regardless of their fitness level. Key Features & Performance

: Integrated with Bluetooth 4.0, ANT+, and Analog protocols to connect with smartphones, Apple Watch, and various gym cardio equipment.