Fitbit Charge 4

Advanced Fitness Tracker

24/7 Heart Rate

Use 24/7 heart rate to better track calorie burn, optimise workouts and uncover health trends.

Resting Heart Rate

Record your resting heart rate, track heart rate trends over time and follow your health & fitness progress.

Heart Rate Zones

During workouts, get real-time stats on screen to see whether you’re in Fat Burn, Cardio or Peak zone, so you can dial the effort up or down according to your goals.

Workout Intensity Map

Get a better understanding of your effort during outdoor workouts with a map in the Fitbit app which shows when and how long you were in each heart rate zone.

Active Zone Minutes

See which heart rate zone you’re in to gauge if you’re working hard enough to reach your goals.

Goal-Based Exercises

Go into exercise mode during your favourite workouts to set a goal for each workout and see real-time progress of your effort on screen.

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.

Water-Resistant

Designed to be water-resistant to 50M, Fitbit Charge 4 automatically tracks swim workouts and can be worn in the shower, pool and beyond.

Spotify Control

Amp up your workout when you control music, like songs and browse playlists and podcasts from Charge 4.*

Guided Breathing Sessions

Take a moment for mindfulness by following an on-screen guided breathing session that’s based on your heart rate.

Notifications & Apps

Stay connected with call, calendar and smartphone app alerts, text notifications and helpful apps like weather and timer. Plus, send quick replies to messages on Android only.

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, so you can quickly understand your sleep quality and work toward better rest.

Long Battery Life

With a battery life of up to 7 days—and up to 5 hours when using GPS—Fitbit Charge 4 lets you do more with less charging. Varies with use and other factors.

Fitbit Pay

Load your credit and debit cards to your Wallet in the Fitbit app, then use Charge 4 to tap and pay for purchases on the go—at transit stations, your favourite stores and more. Not available with all transit systems and banks. See availability.

All-Day Activity Tracking

Charge 4 tracks all-day activity like steps, distance, floors climbed, Active Zone Minutes and calories burned to show how every part of your day gets you closer to your goals.

Menstrual Health

Know your body better by using your tracker with the Fitbit app to follow your cycle, record symptoms and more.

Reminders to Move

Keep yourself on track toward your goals with fun, on-screen reminders that encourage you to move throughout the day.

Daily Dashboard

See all your activity stats in one place with a daily dashboard that shows your steps, calories burned, sleep, heart rate and more.

Clock Faces & Accessories

Personalise your Charge 4 by choosing your own clock face and switching out your classic band for accessories in leather, woven, sport styles and more. Accessories sold separately.

Intuitive Touchscreen

Fitbit Charge 4 makes it easier to see your stats in sunlight, at night or anytime, thanks to a large touchscreen and backlit display that adjusts to different lighting conditions.

Wireless Sync

Charge 4 automatically syncs to most popular iOS and Android devices to show your stats, trends and progress on your Fitbit dashboard.

Mobile App

Set goals, track progress and get a more complete picture of your health & fitness—from nutrition and hydration to exercise and sleep—all on your dashboard in the Fitbit app.

*Spotify Premium subscription required. App not available in all countries.

Both small and large sizes included in box. Print this guide to find your fit.

Small

Fits wrist 140 mm - 180 mm in circumference

Large

Fits wrist 180 mm - 220 mm in circumference

39.83 mm

Window Diagonal 39.83 mm

Dimensions 35.8mm l x 22.7mm w x 12.5mm h

35.8mm

22.7 mm

What's Included in Charge 4

  • Fitbit Charge 4 tracker
  • Classic wristband (both small & large)
  • Charging cable

What's Included in Charge 4 Special Edition

  • Fitbit Charge 4 Special Edition tracker
  • Woven reflective band (both small & large)
  • Classic wristband (both small & large)
  • Charging cable

Sensors & Components

  • 3-axis accelerometer
  • Optical heart rate monitor
  • GPS
  • Vibration motor
  • NFC chip for Fitbit Pay
  • Altimeter
  • Bluetooth LE (BLE)

Battery & Power

Battery life up to 7 days, or up to 5 hours with GPS. 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 data, minute by minute
  • Saves daily totals for the last 30 days
  • Stores heart rate data at 1-second intervals during exercise tracking and at 5-second intervals all other times

Water Resistance

Water-resistant to 50 metres. 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. Learn more.

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. Learn more.

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: -20° to 60° C
  • Maximum operating altitude: 8,535 m

Syncing

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

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.

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