About this item

• Get a daily Stress Management Score
• Track your heart health with high & low heart rate notifications and a compatible ECG app 
•  track SpO2, heart rate variability, skin temperature variation and more 
•  GPS 
•  up to 7-day battery (varies with use and other factors)
• Track calorie burn and optimize workouts with 24/7 heart rate tracking 
• Active Zone Minutes, which guide you toward your desired intensity level