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Suunto W's M4 heart rate monitor

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Suunto W's M4 heart rate monitor

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Suunto W's M4 heart rate monitor

The M4 helps you stay within the most effective training zone during your personnal training and automatically adapts exercise program according to your improvements to help you reach your goals.



  • Real-time guidance heart rate and calories burned
  • Large and easy-to-read display
  • Choice of three heart rate zones to reach personnal exercice targets (improved fitness, weight management and free training)
  • Automatically adapts your exercise program for the next seven days of training (according to ACSM)


  • Suunto Dual Comfort heart rate textile belt (included)
  • Workout achievement summaries


  • Belt compatible with most gym cardio equipment, with most Suunto cardiometers and the Suunto Fitness Solution
  • Possibility to upload data to with the optional Suunto Movestick

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