Fitbit Charge HR Armband activity tracker OLED Wireless Blue

14 - 16 cm, PurePulse, Bluetooth 4.0, LED, LiPo 5 h, Android, iOS, Windows, Mac <b>PurePulse Heart Rate</b>

Get continuous, automatic, wrist-based heart rate & simplified heart rate zones.

<b>Long Battery Life</b>

Lasts longer than competing trackers with a battery life up to 5 days

<b>Workouts + All-Day Activity</b>

Track workouts, heart rate, distance, calories burned, floors climbed, active minutes & steps

<b>Exercise Tracking</b>

Get real-time run stats & review routes, splits and workout summaries on the app

<b>SmartTrack</b>

Automatically recognizes select activities and records it in the exercise section of the Fitbit app

<b>Auto Sleep Tracking & Silent Alarms</b>

Monitor your sleep automatically & set a silent alarm
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Caller ID + Watch</b>
See daily stats & time of day, and get call notifications with compatible devices

<b>Wireless Syncing</b>

Sync stats wirelessly & automatically to leading smartphones and computers