Every beat counts.

ChargeHR ChargeHR

Heart rate + activity wristband

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The power of heart rate on your wrist.

Purepulse™ heart rate

For better fitness,
start with heart.

Get continuous, automatic, wrist-based heart rate tracking from Charge HR. Monitor calorie burn, maintain workout intensity and more—all without an uncomfortable chest strap.

Let your heart be your guide with Charge HR. Monitor heart rate automatically and continuously right on your wrist to accurately track calorie burn, maintain workout intensity, maximize training and optimize health—all without an uncomfortable chest strap.

See the benefits of heart rate tracking

ChargeHR
Continuous, strap-free
heart rate monitoring

Purepulse™ heart rate

For better fitness,
start with heart.

Let your heart be your guide with Charge HR. Monitor heart rate automatically and continuously right on your wrist to accurately track calorie burn, maintain workout intensity, maximize training and optimize health—all without an uncomfortable chest strap.

Get continuous, automatic, wrist-based heart rate tracking from Charge HR. Monitor calorie burn, maintain workout intensity and more—all without an uncomfortable chest strap.

See the benefits of heart rate tracking

WORKOUTS + ALL-DAY ACTIVITY

Get better tracking
with every beat.

Take control of your goals by using ChargeHR to record your workouts and track all-day activity like heart rate, steps, distance, calories burned, stairs climbed and active minutes.

Take control of your goals by using Charge HR to record your workouts and track all-day activity like heart rate, steps, distance, calories burned, stairs climbed and active minutes. With an impressive battery life up to 5 days* and instant access to every stat, you don’t have to look far for motivation to keep moving.

Caller id

See your calls.
Call the shots.

Stay in the know, on the go with Caller ID on Charge HR, which lets you see incoming call notifications on display when your phone is nearby to. View compatible devices

With a comfortable fit and Caller ID, Charge HR lets you stay connected in style. See incoming call notifications on display when your phone is nearby to stay in the know, on the go. View compatible devices

EXERCISE MODE + SMARTTRACK™

Record your workouts.
Reach your goals.

Use Exercise Mode to easily record workouts, see real-time exercise stats and have summaries appear automatically on your Fitbit dashboard.

Get credit for workouts without pressing a button thanks to SmartTrack™—a feature that automatically recognizes and records select exercises. For even more precise tracking during workouts and real-time stats on your wrist, put Fitbit Charge HR into Exercise Mode. Then see how all your effort adds up by reviewing exercise summaries in the Fitbit app.

Auto Sleep + alarms

Know your nights. Improve your days.

Get a better picture of your health by using Charge HR to automatically track and sync your sleep trends. Then, wake peacefully by setting a silent, vibrating alarm.

Get a better picture of your overall health by using Charge HR to automatically track how long and how well you sleep. Sync your nightly stats to see online graphs that illustrate your sleep trends, and wake peacefully by setting a silent, vibrating alarm.

Wireless syncing

Sync up.
Stay inspired.

Charge HR automatically and wirelessly syncs your stats to your computer and 200+ leading smartphones, so you can track your progress with charts and graphs.

Charge HR automatically and wirelessly syncs your stats to your computer and 200+ leading smartphones, and tracks your progress in detailed charts and graphs that keep you encouraged to reach your fitness goals.

Everything you need, all in one place.

A seamless app experience from devices to dashboard

Learn more

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Specifications

Sizing

size small
fits wrists
14 - 16 cm
21 mm
size large
fits wrists
16 - 19 cm
21 mm

What’s Included

  • Charging cable
  • Wireless sync dongle

Sizing varies across trackers. Use this guide to pick the right fit & size up if you're between sizes.

see more specs

Sensors & Components

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

Display

  • OLED

Heart Rate

Like all heart rate monitoring technologies, accuracy is affected by physiology, location of device, and different movements. Learn more about wear during workouts.

Battery and Power

We recommend charging your device every few days to ensure you are always tracking.

  • Battery life: lasts up to 5 days
  • Battery type: Lithium-polymer
  • Charge time: One to two hours
  • Radio transceiver: Bluetooth 4.0

Memory

  • Tracks 7 days of detailed motion data – minute by minute.
  • Tracks daily totals for past 30 days
  • Stores heart rate data at 1 second intervals during exercise tracking and at 5 second intervals all other times

Water Resistance

Charge HR is sweat, rain and splash proof. However, the device is not swim proof or showerproof. With any wearable device, it’s best for your skin if the band stays dry and clean.

Care

If the band gets wet or if you sweat in it, remove and completely dry the band before putting it back on. Clean the band with a mild soap-free cleanser like Cetaphil or Aquanil. Give your wrist a rest by taking the band off every now and then. Learn more.

Materials

Charge HR's wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. Charge HR also has a surgical-grade stainless steel buckle.

Environmental Requirements

  • Operating temperature: -20° to 45° C
  • Maximum operating altitude: 9,144 m

Syncing

Charge HR syncs automatically and wirelessly to tablets, computers and 200+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology.

  • Syncing range: 6 m
  • Call notifications via Bluetooth 4.0
  • Syncing to computers requires Internet connection and USB port
  • Syncing to mobile devices requires Bluetooth and Internet connection
  • Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices

Sensors & Components

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

Display

  • OLED

Heart Rate

Like all heart rate monitoring technologies, accuracy is affected by physiology, location of device, and different movements. Learn more about wear during workouts.

Battery and Power

We recommend charging your device every few days to ensure you are always tracking.

  • Battery life: lasts up to 5 days
  • Battery type: Lithium-polymer
  • Charge time: One to two hours
  • Radio transceiver: Bluetooth 4.0

Memory

  • Tracks 7 days of detailed motion data – minute by minute.
  • Tracks daily totals for past 30 days
  • Stores heart rate data at 1 second intervals during exercise tracking and at 5 second intervals all other times

What’s Included

  • Charging cable
  • Wireless sync dongle

Water Resistance

Charge HR is sweat, rain and splash proof. However, the device is not swim proof or showerproof. With any wearable device, it’s best for your skin if the band stays dry and clean.

Care

If the band gets wet or if you sweat in it, remove and completely dry the band before putting it back on. Clean the band with a mild soap-free cleanser like Cetaphil or Aquanil. Give your wrist a rest by taking the band off every now and then. Learn more.

Materials

Charge HR's wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. Charge HR also has a surgical-grade stainless steel buckle.

Environmental Requirements

  • Operating temperature: -20° to 45° C
  • Maximum operating altitude: 9,144 m

Syncing

Charge HR syncs automatically and wirelessly to tablets, computers and 200+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology.

  • Syncing range: 6 m
  • Call notifications via Bluetooth 4.0
  • Syncing to computers requires Internet connection and USB port
  • Syncing to mobile devices requires Bluetooth and Internet connection
  • Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices

Battery and Power

We recommend charging your device every few days to ensure you are always tracking.

  • Battery life: lasts up to 5 days
  • Battery type: Lithium-polymer
  • Charge time: One to two hours
  • Radio transceiver: Bluetooth 4.0

Environmental Requirements

  • Operating temperature: -20° to 45° C
  • Maximum operating altitude: 9,144 m

Memory

  • Tracks 7 days of detailed motion data – minute by minute.
  • Tracks daily totals for past 30 days
  • Stores heart rate data at 1 second intervals during exercise tracking and at 5 second intervals all other times

Syncing

Charge HR syncs automatically and wirelessly to tablets, computers and 200+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology.

  • Syncing range: 6 m
  • Call notifications via Bluetooth 4.0
  • Syncing to computers requires Internet connection and USB port
  • Syncing to mobile devices requires Bluetooth and Internet connection
  • Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices

*Your fully charged Fitbit Charge HR has a battery life of up to 5 days. Note that battery life and charge cycles vary with use, settings and many other factors; actual results will vary.