Fitbit Charge 4 Fitness Wristband with GPS ( NFC ) - Black/Black

Display:

• Display Type: OLED
• Touchscreen: Yes

Connectivity:

• Wireless Connectivity: Bluetooth 4.0 LE
• Global Positioning: GPS
• Wireless Range: 30' / 9.1 m

Performance:

• Operating System: Proprietary OS
• Vibration Motor: Yes
• Sensors: Accelerometer, Barometer (Altimeter), Touch
• OS Compatibility: macOS 12.2 or Later, Android 7 or Later, iOS 5 or Later

Memory:

• Memory Retention: 7 Days (Motion Data)

Battery:

• Estimated Battery Life:
  • 7 Days (GPS Off)
  • 5 Hours (GPS On)
• Rechargeable Battery Chemistry: Lithium-Ion Polymer
• Charging Time: 2 Hours

Band:

• Band Circumference:
  • 5.5 to 7.1" / 140 to 180 mm
  • 7.1 to 8.7" / 180 to 220 mm

General:

• Water Resistance Depth: 164.04' / 50 m
• Splash Proof: Yes
• Operating Temperature: -4 to 140°F / -20 to 60°C
• Operating Altitude: 28,001' / 8535 m
• Dimensions: 1.4 x 0.9 x 0.5" / 3.56 x 2.29 x 1.27 cm

Warranty: 1 year