What a reset does and when you need one

A reset clears all data from your Fitbit Charge 2 and returns it to factory settings. This wipes your activity history, heart rate logs, sleep records, and any custom settings you've saved. You should reset your device if it's frozen, not syncing with your phone, draining battery unusually fast, or if you're selling it and want to remove your personal information.

A reset is different from a restart. A restart simply turns the device off and back on without erasing anything — try that first if your Charge 2 is just acting sluggish. Hold the button on the left side for 10 seconds until you see the Fitbit logo, then release. Wait 30 seconds for it to fully restart.

If restarting doesn't fix the problem, a full reset is your next step. The process takes about five minutes and requires only your device and the charging cable.

Key Takeaways

  • A reset erases all your activity data, heart rate history, and personal settings from the device itself, though your data remains in the Fitbit app if you've synced before.
  • You must charge your Fitbit Charge 2 to at least 50 percent battery before starting a reset, or the process may fail partway through.
  • The reset happens through a menu on the device — you navigate using the button on the left side and confirm with the button on the right side.
  • After resetting, you'll need to pair the device with the Fitbit app again and set up your profile information from scratch.

Charge your device before you start

Plug your Fitbit Charge 2 into the charging cable that came with it. The cable has a small clip that holds the device's metal contacts. Charge until the battery icon shows at least 50 percent full — you'll see this on the device screen. A full charge takes about two hours.

Don't try to reset a low-battery device. If the battery dies during the reset process, your Charge 2 may not complete the factory reset and could become unresponsive. If you're in a hurry, charge for at least 30 minutes before proceeding.

Navigate to Settings and find the reset option

Press the button on the left side of your Charge 2 to wake the screen. You'll see the time. Press the button again to move through the menu — you're looking for a gear icon that says "Settings." This usually appears after the clock, stats, and heart rate screens.

Once you see Settings, press the button on the right side to open it. You'll now see a list of options including "About," "Bluetooth," and others. Press the left button to scroll down through this list until you see "Clear User Data" or "Factory Reset" — the exact wording varies slightly depending on your software version.

Confirm the reset and wait for completion

When you find the reset option, press the right button to select it. The device will ask you to confirm — you'll see a message asking if you're sure. Press the right button again to confirm. The screen may go blank or show a loading animation.

The reset process takes one to three minutes. Do not remove the device from the charger or press any buttons while it's resetting. Once it's done, you'll see the Fitbit logo and the device will restart. The screen will then show the setup screen, which looks like a series of prompts asking you to set the time and date.

Pair your device with the app again

Open the Fitbit app on your phone. Tap the profile icon in the bottom right corner, then tap "Set Up Device." Choose "Fitbit Charge 2" from the list of devices. The app will search for your device — make sure Bluetooth is turned on in your phone's settings.

When the app finds your Charge 2, it will ask you to confirm the pairing. Tap "Pair" on your phone. The device will vibrate and show a checkmark when pairing is complete. You'll then be guided through entering your personal information — height, weight, age, and gender — which the device uses to calculate calories burned.

Your historical data from before the reset won't reappear on the device, but it remains in your Fitbit account if you synced regularly. Once you've completed setup and synced, your Charge 2 will start recording new activity data.

Troubleshooting if the reset doesn't work

If you're stuck on the setup screen and can't move forward, try restarting again. Hold the left button for 10 seconds until the Fitbit logo appears. If the device still won't respond after a restart, try charging it for another 30 minutes and attempt the reset process again.

If the reset menu never appears, your software may be outdated. Pair the device with the Fitbit app and let it sync — the app will automatically update the device's software if needed. After the update completes, try the reset process again.

If your Charge 2 is completely unresponsive and won't turn on even after charging for an hour, the battery may be damaged. Contact Fitbit support with your device's serial number, which you can find in the About section of Settings before the reset, or on the back of the device itself.

What to do after the reset is complete

Once your Charge 2 is paired and set up again, it will begin tracking your steps, heart rate, and sleep immediately. Wear it for a full day before expecting accurate calorie and distance calculations — the device learns your stride length and movement patterns over time.

If you were having syncing problems before the reset, they should be resolved now. If syncing issues return, unpair the device from the app (go to Settings > Devices > Fitbit Charge 2 > Unpair), then pair it again from scratch.

Frequently Asked Questions

Will I lose my activity history if I reset?

The reset erases all data stored on the device itself. However, if you synced your Charge 2 with the Fitbit app before resetting, your historical data remains in your account and you can view it in the app. The device won't display old data, but your records are safe.

Can I reset my Charge 2 without the charging cable?

No. You need the original charging cable to power the device during the reset, and you must charge it to at least 50 percent before starting. The reset process requires stable power to complete safely.

How long does a reset take?

The reset itself takes one to three minutes. After that, you'll spend another five to ten minutes pairing with the app and entering your personal information. Total time from start to a working device is usually 15 to 20 minutes.

What if I forget my Fitbit password after resetting?

Go to the Fitbit login page on your phone or computer and tap "Forgot Password." Enter your email address and Fitbit will send you a link to create a new password. You can then log in with the new password and pair your reset device normally.

Do I need to reset if I'm just selling my Charge 2?

Yes. A reset removes your personal data, activity history, and account information from the device. Before handing it over, reset it and do not pair it with an account. The new owner can then set it up as if it were brand new.