Item Type: Digital Wristwatches
Display Panel: 0.49 inch OLED
Water Resistance Depth: 3Bar
Movement: Smart
Band Width: 0.71 inch
Band Length: 9.45 inch
Weight: Item only 22g, with Package 122g
Feature: Sleep Tracker,Water Resistant,Heart Rate Monitor,LED display
Boxes & Cases Material: Paper
Clasp Type: Buckle
Style: Sport
Dial Window Material Type: Plastic
Band Material Type: Silicone
Gender: Men,Women
Case Material: Plastic
Case Thickness: 0.35 inch
Case Shape: Rectangle

• 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 (running, biking and more) and records them for you in the Fitbit app.
• Heart Rate Monitoting: Continuous, automatic, wrist-based heart rate tracking without an uncomfortable chest strap.
• Daily Reminder:Sedentary reminder,Drinking reminder,Clocking reminder.
• Sync data via Bluetooth with iOS and Android smart phones. NOTE : OS must be IOS 7.1(or above)and Android4.3(or above)phone which with Bluetooth 4.4.

Auto Sleep Tracking: Automatically track how long and how well you sleep and set a silent vibrating alarm.LILY