Press and hold the button on your Fitbit until the screen lights up

Most Fitbits turn on by pressing and holding the single button on the device for three to five seconds. The button is usually on the side or bottom of the tracker. You'll see the Fitbit logo appear on the screen, followed by a startup sequence that takes about 10 to 15 seconds. Once you see the main clock face or home screen, your device is on.

If your Fitbit has been sitting unused for a while, it may take a few extra seconds to respond. Press firmly and hold steady — a quick tap won't work. If nothing happens after 10 seconds of holding, your battery may be completely drained and you'll need to charge it first.

Key Takeaways

  • Press and hold the single button on your Fitbit for three to five seconds until the logo appears on screen.
  • The startup sequence takes about 10 to 15 seconds total from button press to home screen.
  • If the screen doesn't respond, your battery is likely empty and needs charging before the device will turn on.
  • Once powered on, your Fitbit will stay on and track activity continuously until the battery drains completely.

Charging your Fitbit if the battery is dead

If pressing the button produces no response, your Fitbit's battery is depleted. Connect the charging cable that came with your device — most modern Fitbits use a magnetic charging dock that clips to the back of the tracker. Align the metal contacts on the back of your Fitbit with the metal pins on the charger.

Plug the USB end of the cable into a computer, wall adapter, or any standard USB power source. A charging icon (usually a lightning bolt or battery symbol) will appear on the screen within a few seconds. Most Fitbits take 60 to 90 minutes to charge fully. Once you see the battery icon full or the device shows the home screen, you can unplug it and use the button to turn it on again if it powered off during charging.

What happens after your Fitbit turns on

Once the device is on, it stays on continuously. Your Fitbit doesn't have a sleep mode you set up manually — it runs 24/7 to track your steps, heart rate, and sleep. The screen will dim after a few seconds of inactivity to save battery, but the device itself keeps working in the background.

If you want to turn your Fitbit completely off, you'll need to access the settings menu on the device or through the Fitbit app on your phone. Most people never turn their Fitbits off — they straightforward let them run until the battery drains, then charge them again. This is normal and expected behavior.

Pairing your Fitbit with your phone after turning it on

After your Fitbit powers on for the first time, you'll need to pair it with your smartphone so it can sync data and receive notifications. read the Fitbit app from the Apple App Store or Google Play Store, depending on your phone type. Open the app and select "Set up a new device," then follow the on-screen prompts.

The app will search for your Fitbit by Bluetooth. Make sure your phone's Bluetooth is turned on and that your Fitbit is nearby — within 10 feet is usually sufficient. Once the app finds your device, it will ask you to confirm the pairing. After confirmation, your Fitbit will sync with the app and begin uploading your activity data automatically whenever you're in range of your phone.

Troubleshooting if your Fitbit won't turn on

If you've held the button for 10 seconds and nothing appears on screen, try charging the device for at least 30 minutes before attempting to turn it on again. A completely dead battery sometimes needs a few minutes of charging before the device will respond at all.

If the device still won't turn on after charging, try a force restart. On most Fitbits, this means holding the button for 10 to 15 seconds — longer than a normal startup. You may see the Fitbit logo disappear and reappear, or the screen may go blank before lighting up again. This clears temporary software issues that can prevent startup.

If your Fitbit still won't respond after a force restart and a full charge, the device may have a hardware problem. Contact Fitbit support through their website or app — they can walk you through additional troubleshooting steps or discuss replacement options if your device is still under warranty.

How to keep your Fitbit powered on longer between charges

Your Fitbit's battery life depends on the model and how often you use features like GPS or continuous heart rate monitoring. Most trackers last 5 to 7 days per charge. To extend battery life, reduce screen brightness in the settings menu, turn off notifications you don't need, and disable GPS if you're not using it for outdoor workouts.

Charging habits matter too. Charge your Fitbit before the battery completely drains whenever possible — letting it run to zero and stay dead for days can shorten the battery's lifespan over time. A quick 20 to 30 minute charge every few days keeps the battery healthier than waiting until it dies completely.

Frequently Asked Questions

Does my Fitbit turn off automatically when I'm not wearing it?

No. Your Fitbit stays on and running whether you're wearing it or not. It doesn't have an automatic power-off feature. The only way to turn it completely off is through the device settings or by letting the battery drain completely.

What if the button feels stuck or won't press?

A stuck button is usually caused by dirt or sweat buildup around the edges. Gently wipe the button and the area around it with a dry cloth. If it still won't press, try pressing from slightly different angles — sometimes the button needs to be pressed in a specific spot. If it remains stuck after cleaning, contact Fitbit support.

Can I turn my Fitbit on and off multiple times a day?

Yes, but it's not necessary and will drain your battery faster. Each startup uses power, and you'll lose any data recorded while the device was off. Most people charge their Fitbit once a week and leave it on continuously during that time.

Why does my Fitbit turn on but the screen goes blank after a few seconds?

The screen dims automatically to save battery. This is normal. Tap the screen or press the button to wake it up and see your stats. If the screen stays completely blank even after tapping, try charging the device — low battery can cause the display to shut down even though the device is technically on.