How to Fix Heart Rate Monitor on a Fitbit Charge 2

Introduction

Your Fitbit device captures and records activity throughout the course of the day. The Fitbit Charge 2 will normally display your active heart rate when worn. This guide will take you through the process of troubleshooting your device's heart rate monitor, should it fail to display your heart rate properly.
Fitbit Charge 2

1 Restart Device

  1. Plug the charging cable into the USB port on your computer or any USB wall charger.
  2. Clip the other end of the charging cable to the port on the back of the tracker. The pins on the charging cable must lock securely with the port.
    Charging cable being held in person's fingers
  3. Make sure the button on your tracker is aligned with the button opening on the charging cable.
    picture of the charger connected to the watch
  4. You will know the connection is secure when the tracker vibrates and you see a battery icon on the display. Your Charge 2 will begin charging.
  5. Press and hold the button on your tracker for four seconds. When you see the Fitbit logo and the tracker vibrates, this means the tracker has restarted.
  6. Unplug your tracker from the charging cable.

? Do you use a Phone/Tablet or a computer to control your Fitbit?

  1. Phone/Tablet
  2. Computer

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Your Fitbit device captures and records activity throughout the course of the day. The Fitbit Charge 2 will normally display your active heart rate when worn. This guide will take you through the process of troubleshooting your device's heart rate monitor, should it fail to display your heart rate properly.
Fitbit Charge 2
  1. Plug the charging cable into the USB port on your computer or any USB wall charger.
  2. Clip the other end of the charging cable to the port on the back of the tracker. The pins on the charging cable must lock securely with the port.
    Charging cable being held in person's fingers
  3. Make sure the button on your tracker is aligned with the button opening on the charging cable.
    picture of the charger connected to the watch
  4. You will know the connection is secure when the tracker vibrates and you see a battery icon on the display. Your Charge 2 will begin charging.
  5. Press and hold the button on your tracker for four seconds. When you see the Fitbit logo and the tracker vibrates, this means the tracker has restarted.
  6. Unplug your tracker from the charging cable.
  1. Open the Fitbit app on your mobile device.
    Fitbit icon
  2. Click on the Account icon. Then Choose your Device.
    Account icon
    Fitbit App Choose your device. Screenshot
  3. Tap on Heart Rate Tracking and make sure it is set to Auto.
    Fitbit app with Heart Rate Tracking highlighted. Screenshot
  1. Open your Fitbit App.
    iOS home screen highlighting the FitBit app.
  2. Tap Account.
    FitBit app highlighting the account button.
  3. Tap the device you want to sync.
    Fitbit app highlighting the Alta device within the device list.
  4. Make sure All Day Sync is on. You can tap Sync Now to sync immediately.
    FitBit app highlighting available device options.
Since enabling the heart rate monitor didn't work, we're going to make some changes to the heart rate monitor settings, and then synchronize your Fitbit device again.
Other common fixes for Heart Rate Monitor issues with your Fitbit:
  • Tighten the band just enough so it isn't slipping around on your wrist. Your tracker needs a solid contact with your arm to reliably track your heart rate. Heart rate tracking may not work with certain accessory bands, especially if they’re loose fitting. Fitbit recommends wearing their classic or sport bands during exercise.
  • Move the band to a slightly different position on your arm. Just a little higher or a little lower.

Set Heart Rate setting to ON

If the setting is Auto but your heart rate still isn't appearing, try changing the setting to On. At this setting, the green lights on the back of your tracker flash even when you aren't wearing it. This does not indicate a problem with your tracker.

  1. Lets open the app on your mobile device.
    Fitbit icon
  2. Click on the Account icon. Then Choose your Device.
    Account icon
    Fitbit App Choose your device. Screenshot
  3. Tap on Heart Rate and make sure it is set to On.
    Fitbit app with Heart Rate Tracking highlighted. Screenshot
    Heart Rate with On highlighted. Screenshot
  1. Plug the charging cable into the USB port on your computer or any USB wall charger.
  2. Clip the other end of the charging cable to the port on the back of the tracker. The pins on the charging cable must lock securely with the port.
    Charging cable being held in person's fingers
  3. Make sure the button on your tracker is aligned with the button opening on the charging cable.
    picture of the charger connected to the watch
  4. You will know the connection is secure when the tracker vibrates and you see a battery icon on the display. Your Charge 2 will begin charging.
  5. Press and hold the button on your tracker for four seconds. When you see the Fitbit logo and the tracker vibrates, this means the tracker has restarted.
  6. Unplug your tracker from the charging cable.

If your Fitbit device isn't displaying your heart rate, follow the steps below. After each step, check your device to see if your heart rate is being displayed again.

  1. Log into your fitbit.com dashboard.
    Fitbit website login. Screenshot
  2. Click the gear icon in the top right corner, then select Settings.
    Gear icon on fitbit website. screenshot
  3. Under Devices > Heart Rate, make sure it's set to Auto.
    Devices highlighted on fitbit dashboard. Screenshot
  4. Click Heart Rate, make sure it's set to Auto.
    Heart Rate set to Auto

After your Fitbit device is setup initially, it will automatically begin synchronizing with your device of choice when it is within 20 feet of it. However, synchronizing your Fitbit manually is also an option by following these steps.

  1. Make sure your Fitbit's USB dongle or cradle is connected to your computer.
    FitBit USB dongle.
  2. Locate and select the Fitbit icon along the upper toolbar of your Mac.
    macOS menu bar highlighting the FitBit app icon.
  3. Select Sync Now.
    macOS menu bar highlighting the FitBit app icon having been extended with sync now selected.
  4. The Fitbit app will open and begin looking for your Fitbit device to synchronize to.
    FitBit app opened searching for available devices.
  5. If prompted, log into your Fitbit account. 
  6. You will be presented with a completion screen if the synchronization was successful.
    FitBit app confirming a successful synchronization operation.
Since enabling the heart rate monitor didn't work, we're going to make some changes to the heart rate monitor settings, and then synchronize your Fitbit device again.
Other common fixes for Heart Rate Monitor issues with your Fitbit:
  • Tighten the band just enough so it isn't slipping around on your wrist. Your tracker needs a solid contact with your arm to reliably track your heart rate. Heart rate tracking may not work with certain accessory bands, especially if they’re loose fitting. Fitbit recommends wearing their classic or sport bands during exercise.
  • Move the band to a slightly different position on your arm. Just a little higher or a little lower.

Set Heart Rate setting to ON

If the setting is Auto but your heart rate still isn't appearing, try changing the setting to On. At this setting, the green lights on the back of your tracker flash even when you aren't wearing it. This does not indicate a problem with your tracker.

  1. Log into your fitbit.com dashboard.
    Fitbit website login. Screenshot
  2. Click the gear icon in the top right corner. The hit Settings.
    Gear icon on fitbit website. screenshot
  3. Click Devices.
    Devices highlighted on fitbit dashboard. Screenshot
  4. Click Heart Rate, make sure it's set to On.
    Heart Rate set to Auto
  1. Plug the charging cable into the USB port on your computer or any USB wall charger.
  2. Clip the other end of the charging cable to the port on the back of the tracker. The pins on the charging cable must lock securely with the port.
    Charging cable being held in person's fingers
  3. Make sure the button on your tracker is aligned with the button opening on the charging cable.
    picture of the charger connected to the watch
  4. You will know the connection is secure when the tracker vibrates and you see a battery icon on the display. Your Charge 2 will begin charging.
  5. Press and hold the button on your tracker for four seconds. When you see the Fitbit logo and the tracker vibrates, this means the tracker has restarted.
  6. Unplug your tracker from the charging cable.

After your Fitbit device is setup initially, it will automatically begin synchronizing with your device of choice when it is within 20 feet of it. However, synchronizing your Fitbit manually is also an option by following these steps.

  1. Make sure your Fitbit's USB dongle or cradle is connected to your computer.
    FitBit USB dongle.
  2. In the lower right hand corner of your screen, click the Show Hidden Icons arrow of your Taskbar.
    Windows 10 system tray highlighting the show hidden icons button.
  3. Locate the Fitbit app icon within the system tray.
    Windows 10 system tray highlighting the FitBit app icon.
  4. Hover your mouse pointer over the Fitbit icon and Right Click it. It's context menu will appear.
    Windows 10 system tray displaying the right-click menu for the FitBit app.
  5. Select Sync Now to begin a manual synchronization of your Fitbit device.
    Windows 10 system tray displaying the right-click menu for the FitBit app with sync now highlighted.
  6. The Fitbit app will open and begin looking for your Fitbit device to synchronize to.
    Searching for people
  7. If prompted, log into your Fitbit account.
    Login prompt
  8. You will be presented with a completion screen if the synchronization was successful.
    Sync complete
Since enabling the heart rate monitor didn't work, we're going to make some changes to the heart rate monitor settings, and then synchronize your Fitbit device again.
Other common fixes for Heart Rate Monitor issues with your Fitbit:
  • Tighten the band just enough so it isn't slipping around on your wrist. Your tracker needs a solid contact with your arm to reliably track your heart rate. Heart rate tracking may not work with certain accessory bands, especially if they’re loose fitting. Fitbit recommends wearing their classic or sport bands during exercise.
  • Move the band to a slightly different position on your arm. Just a little higher or a little lower.

Set Heart Rate setting to ON

If the setting is Auto but your heart rate still isn't appearing, try changing the setting to On. At this setting, the green lights on the back of your tracker flash even when you aren't wearing it. This does not indicate a problem with your tracker.

  1. Log into your fitbit.com dashboard.
    Fitbit website login. Screenshot
  2. Click the gear icon in the top right corner. The hit Settings.
    Gear icon on fitbit website. screenshot
  3. Click Devices.
    Devices highlighted on fitbit dashboard. Screenshot
  4. Click Heart Rate, make sure it's set to On.
    Heart Rate set to Auto
  1. Plug the charging cable into the USB port on your computer or any USB wall charger.
  2. Clip the other end of the charging cable to the port on the back of the tracker. The pins on the charging cable must lock securely with the port.
    Charging cable being held in person's fingers
  3. Make sure the button on your tracker is aligned with the button opening on the charging cable.
    picture of the charger connected to the watch
  4. You will know the connection is secure when the tracker vibrates and you see a battery icon on the display. Your Charge 2 will begin charging.
  5. Press and hold the button on your tracker for four seconds. When you see the Fitbit logo and the tracker vibrates, this means the tracker has restarted.
  6. Unplug your tracker from the charging cable.
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