To turn on a Fitbit Charge 4, simply connect it to its charging cable, the device powers on automatically when it receives power. This is the only method to power on the device for the first time, correcting the common misconception that a side button press is required.
How to turn on your Fitbit Charge 4
Your Fitbit Charge 4 does not have a power button that turns the device on for initial use. Instead, the tracker powers on the moment you attach it to the charging cable and plug it into a power source. This single action both charges and activates the device for setup.
Step 1: Charge your device to power it on
- Connect the Fitbit Charge 4 to its charging cable, ensuring the pins on the cable align with the contacts on the back of the tracker.
- Plug the USB end of the charging cable into a USB port on a computer or a USB wall adapter.
- Wait for the battery icon to appear on the screen, confirming the device is charging and powered on.
Fitbit's official instructions state to "Turn on and charge your device" by connecting it to the charging cable.
Step 2: Set up with the Fitbit app
- Download the Fitbit app from the Apple App Store (for iPhone and iPad) or Google Play Store (for Android).
- Open the app and create a new Fitbit account, or sign in to an existing one.
- Follow the on-screen prompts to connect your Charge 4 to the app.
Do not pair your tracker through your phone's Bluetooth settings. Setup must be completed exclusively within the Fitbit app. The older Charge manual says setup is done in the Fitbit app, not by pairing through iOS Settings. For Android, the Charge manual snippet only gives examples of Android devices, such as Samsung Galaxy S5 and Motorola Droid Turbo. A third-party result mentioned Android 7.0 and later and iPhone 5S and later, but that was not an official Fitbit page. The app will guide you through entering personal information such as height, weight, and fitness goals to personalize your experience.
Step 3: Sync your tracker with your phone
Syncing happens automatically when the Fitbit app is open and Bluetooth is enabled on your phone. For Android devices, ensure Bluetooth is turned on in both the device settings and the Fitbit app by tapping Menu > Devices > check Use Bluetooth. For supported iOS devices, the Charge 4 can sync directly via Bluetooth. Note that turning your wrist will not wake the tracker's screen, this is a screen-wake limitation, not a power-on method.
If you need to manage how your device uses power, explore the Fitbit battery and power settings within the app to adjust notifications, screen brightness, and other features that affect battery life. Should you ever need to turn a Fitbit off, the device automatically enters a low-power sleep mode when idle; there is no manual power-off function documented for the Charge 4.
Frequently Asked Questions
How long does it take for the Fitbit Charge 4 to power on?
The device powers on immediately when connected to the charging cable. The Fitbit logo appears within seconds, and the device is ready for setup once the battery icon is visible.
What should I do if my Fitbit Charge 4 does not turn on when connected to the charger?
Ensure the charging cable is securely connected to the tracker and that the USB end is plugged into a working power source. If the battery icon does not appear after a few seconds, try a different USB port or wall adapter. If the issue persists, contact Fitbit customer support.
Can I turn on my Fitbit Charge 4 without the charging cable?
No. The Charge 4 must be connected to its charging cable to receive power and turn on for the first time. There is no documented method to power on the device using a button press or any other method.
Does the Fitbit Charge 4 turn off automatically?
The device does not have a manual power-off function. It enters a sleep mode when idle to conserve battery, but it remains on and ready to sync data with the Fitbit app.
Why won't my Fitbit Charge 4 screen turn on when I turn my wrist?
The Charge 4's screen does not wake with a wrist turn. This is a design limitation documented in the official manual. To wake the screen, tap the device or press the side button.
For the wider topic, see Fitbit battery and power settings.
