Fitbit Charge 4 Smartwatch with NFC (Rosewood Red)

Easily monitor how your body responds to your activities, get regular updates on fitness progress, and measure multiple sleeping parameters each day with the Fitbit Charge 4 Fitness Tracker. It also comes with up to 7 days of battery life*, Fitbit Pay**, and notification support for added convenience.

Comprehensive Tracking
Fitbit Charge 4 Fitness Tracker comes with a built-in GPS, which allows you to track location-based statistics, such as the length of your speed and run straight from your wrist. With 24/7 heart rate monitoring, you can also precisely measure your calorie burn and get insights in how to optimise your training regimen.

Monitor Your Efforts
With its Active Zone Minutes feature, this fitness tracker keeps you updated on how long you train in multiple, personalised target heart rate zones. This setup makes it easy to keep track of your progress, as well as checking if you meet World Health Organisation recommendations.

Swimproof Construction
Water-resistant up to a depth of 50m, the Charge 4 Fitness Tracker is specially designed for use while swimming or worn when taking a shower. You can easily stay on top of your activities in different wet conditions.

Check Your Sleeping Habits
Built with a sleep tracker, the Charge 4 precisely measures how much time is spent in Light, Deep, and REM sleep stages. The sleep tracking function then gives a nightly Sleep Score in the Fitbit app (download required) to help you get better, refreshing sleep each night.

A Practical Touchscreen
Featuring an intuitive and convenient to use touchscreen with an adaptable backlight, this Fitbit Fitness Tracker lets you clearly see various stats in different environments and lighting conditions.

Mobile App Convenience
Made with support for the Fitbit app, this fitness tracker makes it easy to present a detailed and comprehensive overview of your health and fitness, including nutrition, exercise, sleep, and hydration, in an easily accessible dashboard.

Sensors & Components

• 3-axis accelerometer
• Optical heart rate monitor
• GPS
• Vibration motor
• NFC
• Altimeter

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.

Care
Give your wrist a rest by taking the band off every now and then. If the band gets wet or you sweat in it, remove and completely dry the band before putting it back on.

Materials
This tracker includes a plastic resin case and the band includes a stainless steel buckle. The classic band is made of a flexible, durable material similar to that used in many sports watches. The woven band is made from a comfortable polyester.

Heart Rate
Like all heart rate tracking technologies, accuracy is affected by physiology, location of device and different movements.

Environmental Requirements

• Operating temperature: -4° to 140° F
• Maximum operating altitude: 28,000 feet

Syncing
Syncs automatically and wirelessly to most popular phones and tablets using Bluetooth LE wireless technology.

• Syncing range: Up to 30 feet
• Certain features like smartphone notifications may require Android 7.0+. Check your device compatibility.
• Syncing to mobile devices requires Bluetooth LE and internet connection.
• Syncs with Mac OS X 12.2 and up, iPhone 5S and later, iPad 5 gen. and later, Android 7.0 and later.
• Music control via Bluetooth LE on Android and iOS devices.

Band Size

• Small: Fits wrist 5.5" - 7.1" in circumference
• Large: Fits wrist 7.1" - 8.7" in circumference

Dimensions

• 1.4in l x 0.9in w x 0.5in h

*Up to 5 hours when using GPS. Varies with use and other factors.
**See availability at fitbit.com/fitbit-pay/banks.