Fitbit Charge 2 Heart Rate + Fitness Wristband ? Black Large ? FB407SBKL

The Fitbit Charge 2 offers a perfect balance of style, functionality, and wellness insight. SmartTrack? automatic exercise recognition, and call/text alerts, it keeps you informed and motivated?whether you?re at the gym or on the move. The includedÿlarge black band ensures a secure and comfortable fit for all-day wear.

Key Features

• All-Day Activity Tracking
  Logs steps, distance, floors climbed, calories burned, and active minutes.

• SmartTrack? Automatic Exercise Recognition
  Detects and logs select workouts like walking, running, and aerobic exercises automatically.

• Sleep & Rest Tracking
  Estimates rest patterns and sleep duration based on motion data?viewable in the Fitbit app.

• Cardio Fitness Score
  Provides a personalized estimate of your cardio fitness level using activity metrics.

• Smart Notifications
  Stay connected with call, text, and calendar alerts right on your wrist.

• Silent Alarms & Guided Breathing
  Vibration alarms wake you gently; guided breathing sessions help manage stress.

• Interchangeable Bands
  Comes with a large black band (fits wrists 6.7"?8.1") and supports additional Charge 2 styles.

• Battery Life
  Up to 5 days per charge; recharges in 1?2 hours.

Product Specifications

• Model Number: FB407SBKL

• Color: Black

• Band Size: Large (fits wrists 6.7"?8.1")

• Case Size: 21 ? 12 ? 11 mm

• Weight: Approx. 30 g

Display:

• Type: OLED tap-responsive (not a full touchscreen)

Processor & OS:

• Proprietary Fitbit chipset

• Fitbit OS (legacy version)

Connectivity:

• Bluetooth 4.0

• Connected GPS (via paired smartphone)

• No Wi-Fi

Memory:

• Stores 7 days of detailed motion data

• Stores 30 days of daily totals

Battery:

• Type: Lithium-polymer

• Battery Life: Up to 5 days

• Charging Time: 1?2 hours

• Charging Method: USB cable (included)

Water Resistance:

• Splash-resistant (not suitable for swimming or submersion)

Compatibility:

• Syncs with iOS, Android, and Windows devices via the Fitbit app

What?s in the Box

• Fitbit Charge 2 Tracker ? Black (Large, Model FB407SBKL)

• Large Black Wristband (pre-installed)

• USB Charging Cable