BATTERY LIFE: Up to 7 days
COMPATIBILITY: Works with iOS & Android
BUILT-IN GPS: With built-in GPS, leave your phone behind and explore the outdoors with pace and distance on your tracker.
ACTIVE ZONE MINUTES: This feature alerts you to which heart rate zone you’re in so you can see if you’re working hard enough to reach your goals.
SLEEP STAGES & SCORE: Charge 4 tracks your time in light, deep and REM sleep stages and gives you a nightly Sleep Score in the Fitbit app

SMART FEATURES
Apps
Syncs Wirelessly
App Dashboard
Sleep Mode
Payments
Spotify - Connect & Control
Do Not Disturb Mode
Up to 7-Day Battery Life
On-Wrist Stats
Smartphone Notifications

EXERCISE FEATURES

Real-Time Pace & Distance using Built-In GPS
Active Zone Minutes
Floors Climbed
Reminders to Move
SmartTrack™ Automatic Exercise Recognition
Swimproof
20+ Goal-Based Exercise Modes
Personalized Reminders
Workout Intensity Map
Heart Rate Zones

DESIGN STYLE FEATURES

Greyscale Touchscreen
Accessories
Customizable Clock Face

HEALTH FEATURES

Cardio Fitness Score
Sleep Tracking with Light, Deep, REM
Female Health Tracking
Guided Breathing Sessions
24/7 Heart Rate Tracking
All-Day Activity Tracking
Sleep Score
Resting Heart Rate
Sleep Tracking
All-Day Calorie Burn