Fitbit FB421SRBU Charge 5 Fitness Tracker Steel Blue/Platinum Stainless Steel

Monitoring and maintaining a healthier lifestyle is made easier with the Fitbit Charge 5 Fitness & Health Tracker. Built-in sensors monitor your body throughout the day and the Fitbit mobile app keeps stats to help you track trends over time. When it comes to health, the on-wrist heart rate monitor and ECG app can detect if you have an irregular rhythm and an EDA scan can tell when you're stressed. These sensors also assist in other health metrics, such as SpO2, HRV, breathing, sleep, and more.

Sleep Management
Wearing your Charge 5 throughout the night will give you a daily Sleep Score and graphs of the quality of your sleep, showing you how much time you spent in light, deep, and REM sleep.

Fitbit Premium Features
With the purchase of a Charge 5, Fitbit includes 6 months of Fitbit Premium membership. Here are some of the features you can enjoy with Premium:
Daily Readiness score that uses a combination of exercise, sleep, and HRV information to let you know if you’re ready for a workout or need to recover
Recommended workouts and guided audio workouts
Mindfulness sessions
Detailed breakdown of your Stress Management Score
Compete in fun challenges
See your personal range and trends for each metric from the past month

Additional Health Features
Receive heart rate notifications when it is above or below your threshold
View a workout intensity map in the Fitbit app to see pace and heart rate zones
Log your mood in the app from Very Stressed to Very Calm, and follow the changes over time
Track skin temperature variation every night for signs of fever or ovulation
Women can use the app to log periods, record menstrual symptoms, and discover patterns in their cycle
Get alerts to stay hydrated, go to sleep on time, and to exercise

Additional Fitness Features
Active Zone Minutes will use your heart rate to guide you to your desired intensity level
PurePulse provides continuous heart rate and calorie burn tracking, and shows your resting heart rate and cardio fitness level
SmartTrack automatically recognizes and records elliptical workouts, runs, swims, and more
See pace and heart rate zones along your outdoor GPS route on the Fitbit app
Track basic activities all day, such as steps, distance, Active Zone Minutes, and calories burned
Learn your VO2 max to help improve your cardio fitness

Additional Smart Features
Receive notifications for calls, texts, calendar events, and smartphone apps, such as Gmail, WhatsApp & Facebook
Send quick replies to messages from your wrist when paired with an Android smartphone Use Sleep Mode to mute notifications and prevent your screen from waking up
Use the touchscreen to set Sleep Mode to turn on automatically
Smart Wake will activate an alarm during an optimal sleep stage within 30 minutes of the set time
Do Not Disturb mode mutes calls, texts, calendar alerts, and app notifications

Additional Design Features
Color touchscreen is made from Corning Gorilla Glass 3 to protect it from scratches and other damage
Always-on mode leaves your screen on so you can see stats and the time at a glance
Infinity bands are replaceable via a quick-release mechanism