Features:

• ALL-DAY ACTIVITY TRACKING 
  Track steps, distance, calories burned, active minutes, and hourly activity. 
  
  
• SWIM-PROOF 
  Wear it in the shower, ocean or pool. Track swimming automatically and see workout summaries in the Fitbit® app. 
  
  
• INTERCHANGEABLE ACCESSORIES 
  Style the ultra-slim, removable tracker by hiding it inside wristband, bangle and pendant accessories. 
  
  
• AUTO SLEEP TRACKING 
  Automatically track how long and how well you sleep and set a silent vibrating alarm.
  
  
• AUTO EXERCISE RECOGNITION 
  SmartTrack™ automatically recognizes select exercises like runs and bike rides and records them for you in the Fitbit app. 
  
  
• REMINDERS TO MOVE 
  Get friendly Reminders to Move that encourage you to reach an hourly goal of 250 steps. 
  
  
• SMARTPHONE NOTIFICATIONS 
  Get call and text notifications with unique vibration patterns and color-coded lights (when your phone is nearby).
  
  
• LED DISPLAY 
  Tap to see progress to your daily goal, and see the display light up when you get calls, texts & Reminders to Move. 
  
  
• LONG BATTERY LIFE 
  Battery life up to 5 days so you can track all day and night without needing a charge.*
  
  
• WIRELESS SYNCING 
  Sync stats wirelessly and automatically to your computer and 200+ leading iOS, Android and Windows™ devices. 
  
  
• INSPIRE + COMPETE 
  Share your stats and compete with friends on the leaderboard, and in Fitbit Challenges

* Battery life and charge cycles vary with use, settings, and other factors; actual results will vary.