fitbit charge 4 fitness wristband with gps nfc black black

Fitbit Charge 4 Fitness Wristband with GPS (NFC) is a high-quality wristband that helps you track your fitness.

Features:

• Battery life: 7 days
• Compatibility: Works with iOS and Android
• Built-in GPS: With built-in GPS, leave your phone behind and explore the outdoors quickly and at a distance from the wristband.
• Active Zone Minutes: This feature alerts you to the heart rate zone you're in so you can see if you're working hard enough to reach your goals.
• Sleep Stages and Score: The wristband tracks light, deep, and REM sleep stages and gives you a nightly sleep score in the Fitbit app.