This device can be placed beneath a headband, such as the Moov HR Sweat or Moov HR Swim, to produce accurate EKG-level heart rate readings. The Moov HR also measures blood oxygen content, calories burned, performance levels and progress. Heartbeats are shown in a waveform, and time and distance reports show wearers their progress. The device provides real-time coaching, utilising optimal zone-based heart rate training, and features a wide range of customisable workouts.