You can also check Garmin Vivosmart HR+ Activity Tracker Imperial Purple/Kona Purple Regular Fit and Garmin vívofit 4 activity tracker with 1+ year battery life and color display. Large, Black. 010-01847-03 for a better comparison at Activitytrackers.biz.

GeneralStrap material Width: 18.5 mm Thickness: 9.8 Length (small/medium): 197 mm 223 Circumference 122-188 mm Circumference (large): 148-215 mmTouchscreen YesDisplay x 0.76" x x pixelsDisplay Small/medium: 20.4 g 21.5 gBattery 5 ratingSwimMemory/History7 timed activities, of activity FeaturesTime/dateYes Automatic timeYes StopwatchYes wrist heart monitorYesBarometric AccelerometerYes light sensorYes Daily FeaturesConnectivityBluetooth® and notificationsYesWeatherYes smartphone PhoneYes My VIRB® RemoteYes compatibilityiPhone®, with Garmin Connect™ MobileYes Activity Tracking FeaturesStep counterYes Move (displays a period of of minutes to it)Yes Auto your activity level and assigns daily step goal)Yes Sleep total and of movement or restful sleep)Yes Calories burnedYes.
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