Fitbit Charge 4 Wristband Activity Tracker Black/Black

Take your goals further with a health & fitness tracker that packs built-in GPS for pace and distance, 24/7 heart rate tracking and more into a comfortable wristband.

Features:
- Built-in GPS
- 24/7 Heart Rate Tracking
- Made for Fitness
- Sleep Tracking
- Spotify control
- Fitbit App

Battery & Power
Battery life up to 7 days, or up to 5 hours with continuous GPS use. Battery life and charge cycles vary with use, settings, and other factors; actual results will vary. We recommend charging every few days to ensure you’re always tracking.

Battery type: Lithium-polymer
Charge time (0-100%): Two hours
Radio transceiver: Bluetooth 4.0

Memory
Saves 7 days of detailed motion and heart rate data, minute by minute. Saves daily totals for past 30 days. Measures heart rate data at 1-second intervals during exercise tracking and at 5-second intervals all other times

Water Resistance
Water resistant to 50 meters. After swimming or getting the band wet, we recommend drying the band because, as with any wearable device, it's best for your skin if the band is clean and dry. We do not recommend wearing Fitbit Charge 4™ in a hot tub or sauna.

Band Size
Small: Fits wrist 140 mm - 180 mm (5.5" - 7.1") in circumference
Large: Fits wrist 180 mm - 220 mm (7.1" - 8.7") in circumference

What's included:
Fitbit Charge 4
Classic wristbands (both small & large)
Charging cable