Fitbit Charge 2 Heart Rate & Fitness Wristband – Black Small – FB407SBKS

Fitbit Charge 2 – Black (Small, Model FB407SBKS)

The Fitbit Charge 2 is a slim and versatile fitness tracker engineered for daily comfort and ongoing health monitoring. Featuring PurePulse® continuous SmartTrack® automatic workout detection, and smart notifications, it helps keep you connected and motivated. The tap-responsive OLED display gives you easy access to your stats, while the small black elastomer band ensures a secure and comfortable fit.

Key Features

• All-Day Activity Tracking – Records steps, distance, calories burned, floors climbed, and minutes of activity.
  
• Sleep Monitoring – Tracks motion during rest to estimate sleep duration and quality (details viewable in the Fitbit app).
  
• SmartTrack® Exercise Recognition – Automatically detects and logs popular workouts like walking, running, and aerobic exercise.
  
• Smartphone Notifications – Receive call, text, and calendar alerts right on your wrist via Bluetooth.
  
• Cardio Fitness Score & Guided Breathing – Get personalized cardio fitness insights and guided breathing sessions via the Fitbit app.
  
• Interchangeable Bands – Includes a small black band (fits wrists 5.5″–6.7″); compatible with other Charge 2 bands (sold separately).
  
• Battery Life – Up to 5 days on a full charge; recharges in approximately 1–2 hours.

Product Specifications

• Color: Black
  
• Band Size: Small (fits wrists 5.5″–6.7″)
  
• Case Dimensions: 21 × 12 × 11 mm
  
• Weight: Approx. 30 g

Display

• OLED tap-responsive (non-touchscreen)

Processor & OS

• Proprietary Fitbit processor
  
• Fitbit OS (legacy version)

Connectivity

• Bluetooth 4.0
  
• Connected GPS (requires smartphone)
  
• Wi-Fi: Not included

Battery

• Type: Lithium-polymer
  
• Life: Up to 5 days
  
• Charging Time: 1–2 hours
  
• Method: USB charging cable (included)

Memory

• Stores 7 days of detailed motion data
  
• Stores daily totals for 30 days

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 (Small, Model FB407SBKS)
  
• Small Black Wristband (pre-installed)
  
• USB Charging Cable