Why Is My Fitbit Sense 2 Keep Restarting?

Fitbit Sense 2 is a great fitness tracker with all the bells and whistles to help you achieve your fitness goals. However, just like most smartwatches, you are bound to experience problems leading to restarting or resetting your tracker. Sometimes the device can restart without your intervention. You know this when the Fitbit seems frozen on the logo, and then vibrates, with the screen going black. 

If this cycle repeats again and again, and you can’t see the clock face, you need to solve the issue. Here’s how to address the problem of Fitbit Sense 2 restarting:

So, Why Does My Fitbit Sense 2 Keep on Restarting?

Well, 5 problems!

  1. Software glitch 
  2. Low battery 
  3. Memory Overload 
  4. Physical damage
  5. Third-party apps

Let’s take a look at a comprehensive overview of these problems and how you can fix them.

How to Fix Fitbit Sense 2 Constant Rebooting Problem

There are several possible fixes to the above problems, and most of them should work seamlessly. Follow the steps provided to have your Fitbit Sense 2 working great again:

Read Also: How to Fix Fitbit Versa Bluetooth Issues

1. Check if There are Any Incomplete Downloads 

Incomplete downloads or firmware updates could be a potential cause of the constant rebooting problem. Sometimes, a partial update can lead to conflicts and instability in the device’s software. 


  • Open the Fitbit app on your smartphone and navigate to your Fitbit Sense 2 device settings. 
  • Check if there are any pending firmware updates. If there are, follow the prompts to complete the update and restart your device. 

2. Charge it Up 

A low battery level is a common culprit for unexpected restarts in electronic devices, including the Fitbit Sense 2. 


  • Connect your Fitbit Sense 2 to its charging cable. Make sure the device is charging correctly and leave it connected until it reaches a full charge. 
  • Once fully charged, disconnect the charging cable and check if the rebooting issue persists. 

3. Restart it Manually 

A simple manual restart can resolve many software-related glitches that might be causing the rebooting problem.


  • Press and hold the physical buttons on your Fitbit Sense 2 for about 10-15 seconds until the Fitbit logo appears on the screen. 
  • Release the buttons, and the device should restart. 

4. Try Long Restart 

If the manual restart didn’t resolve the issue, you can try a more extended restart to clear any stubborn glitches. 


  • Connect your Fitbit Sense 2 to its charging cable. 
  • Press and hold the physical buttons for about 15 seconds until the Fitbit logo appears and disappears from the screen three times. 
  • Release the buttons and wait for your device to restart. 

5. Change the Clock Face 

A problematic clock face or third-party app could be causing conflicts and leading to the constant rebooting problem. 


  • From your Fitbit Sense 2, access the clock face settings
  • Choose a different default clock face or remove any recently installed third-party clock faces or apps. 
  • Monitor the device for a while to see if the issue is resolved. 

6. Factory Reset the Device 

If the problem persists despite trying the above solutions, performing a factory reset might be necessary to eliminate software issues. 


  • Open the Fitbit app on your smartphone. 
  • Go to the device settings and choose “Remove This Device.” 
  • Confirm the action and proceed with the on-screen instructions to factory reset your Fitbit Sense 2. 
  • Once the factory reset is complete, set up your device again and check if the rebooting problem is resolved. 

7. Leave the Battery to Drain 

Allowing the Fitbit Sense 2 battery to drain completely and then recharging it might help reset the device’s internal processes. 


  • Use your Fitbit Sense 2 until the battery is completely drained, and the device turns off.
  • Connect the device to its charging cable and let it charge fully. 
  • Turn on the Fitbit Sense 2 and observe if the rebooting problem persists. 

8. Get in Touch with Fitbit’s Support 

If none of the above solutions work, or if you suspect that the issue is hardware-related, it’s time to reach out to Fitbit’s customer support. Solution: Visit the official Fitbit support website or contact their customer support team directly. Describe the constant rebooting problem in detail and the troubleshooting steps you have already taken. Follow their guidance and instructions to resolve the issue or arrange for a possible repair or replacement if needed.

When Should You Manually Reboot Your Fitbit Sense?

You should consider manually rebooting your Fitbit Sense in the following scenarios:

  1. Device Freezing or Unresponsiveness – If your Fitbit Sense becomes unresponsive or freezes, a manual reboot can help resolve the issue by refreshing the device’s system.
  2.  Constant Rebooting or Restarting – If your Fitbit Sense is stuck in a loop of constant rebooting or restarting, a manual restart might help break the cycle and restore normal operation.
  3. Syncing Issues – When your Fitbit Sense has trouble syncing data with the Fitbit app or other devices, a manual reboot can establish a stable connection and resolve syncing problems.
  4. Battery Drain Problems – If your Fitbit Sense experiences unusually fast battery drain or doesn’t turn on despite having sufficient charge, a manual restart may recalibrate the battery’s internal processes.
  5. Software Glitches or Unexpected Behavior – If you encounter software-related glitches or observe unexpected behavior in the device’s performance, a manual reboot can clear temporary issues and restore normal functionality.
  6. General Troubleshooting – Manually rebooting your Fitbit Sense can be a standard troubleshooting step for various software-related problems or when you encounter unexpected issues with the device. 

Fitbit Sense 2 Restarting Frequently Asked Questions (FAQs)

Can Incomplete Downloads Cause My Fitbit Sense 2 to Restart Frequently? 

Yes, incomplete downloads or firmware updates on your Fitbit Sense 2 may lead to conflicts and cause the device to restart frequently. 

How Do I Manually Restart My Fitbit Sense 2? 

To manually restart your Fitbit Sense 2, press and hold the physical buttons on the device for about 10–15 seconds until the Fitbit logo appears on the screen. Then, release the buttons. 

What is a Long Restart on the Fitbit Sense 2?

A long restart on the Fitbit Sense 2 involves holding the physical buttons for about 15 seconds until the Fitbit logo appears and disappears from the screen three times. This can be useful for clearing stubborn glitches. 

Will Changing the Clock Face Stop My Fitbit Sense 2 from Frequent Restarts? 

Changing the clock face can help if the frequent restarts are caused by conflicts with a specific clock face or a third-party app. Try using a different default clock face or removing recently installed clock faces to see if the issue is resolved.

Should I Factory Reset My Fitbit Sense 2 to Fix the Frequent Restarting Issue? 

Factory resetting your Fitbit Sense 2 should be considered a last resort if other troubleshooting steps have failed to resolve the problem. A factory reset will erase all data on the device and restore it to its original settings.