• BUILT-IN GPS. During outdoor runs, rides, hikes, and more, use built-in GPS to see your pace and distance on Charge 4, then see a map of your workout in the Fitbit app.
• ACTIVE ZONE MINUTES. Feel a buzz when you reach your target heart rate zones during exercise, and celebrate when you earn extra minutes outside of exercise.
• 24/7 HEART RATE. Use 24/7 heart rate to track resting heart rate, better measure calorie burn, and optimize your workouts.
• LONG BATTERY LIFE. With a battery life of up to 7 days--and up to 5 hours when continuously using GPS Fitbit Charge 4 lets you do more with less charging. (Varies with use and other factors)
• GOAL-BASED EXERCISE MODES. Go into exercise mode during your favorite workouts to set a goal for each workout and see the real-time progress of your effort on screen.
• SLEEP STAGES & SLEEP SCORE. Charge 4 tracks your time in light, deep, and REM sleep stages and gives you a nightly Sleep Score in the Fitbit app, so you can quickly understand your sleep quality and work toward better rest.
• OXYGEN SATURATION (SPO2) MONITORING. See your SpO2 nightly average and range on your wrist, and view trends over the past week in the Fitbit app.
• SKIN TEMPERATURE VARIATION. Track your skin temperature each night to see how it varies from your personal baseline. View your nightly average and trends over the past week in the Health Metrics dashboard.
• NOTIFICATIONS & APPS. Stay connected with call, calendar, and smartphone app alerts, text notifications, and convenient apps like weather and timer. Plus, send quick replies, Android only. Available when the phone is nearby.
• SPOTIFY. With the Spotify app, you can control your music, like songs, and browse recent playlists & podcasts all from your wrist. A Spotify Premium subscription is required; not available in all countries.
• FITBIT PAY. Load your favorite credit and debit cards to your Wallet in the Fitbit app, then use your Charge 4 to tap and pay for purchases on the go--at transit stations, your favorite stores, and more.

Included: 

• Fitbit Charge 4 Pebble FB417 (Color Of Choice)