MyZone’s hybrid fitness tracker breaks free of the chest strap

MyZone has announced an upgraded heart-rate tracker that doesn’t have to wrap around your torso to track your workouts and activity. The MZ-Switch is apparently the first device in the world that monitors both PPG (photoplethysmography) and ECG (electrocardiography) readings for more accurate activity monitoring with less “blind spots”.

source https://www.engadget.com/myzone-mz-switch-heart-rate-monitor-130550081.html