How to Unlock Your Android Phone With Your Fitbit

Bluetooth devices you trust can be set to unlock your phone

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Updated on October 29, 2021

Switching from iOS

What to Know

Set or enter PIN or password for device > Settings > Security > Screen Lock > turn on On-body detection.
Next, select Trusted devices > plus (+) sign > select your Fitbit > tap Yes, Add.
To remove Fitbit, go to Settings > Security > Smart Lock > Trusted Devices > tap Fitbit > Remove Trusted Device.

This article explains how to unlock an Android phone using a Fitbit and the Smart Lock feature. Directions should apply no matter who made your Android phone: Samsung, Google, Huawei, Xiaomi, or others.

Use Fitbit and Smart Lock to Unlock Your Android Phone

Android users got quick unlock features when Smart Lock capabilities were introduced in Android Lollipop 5.0 OS. Smart Lock added several new locking and unlocking methods, and it also improved on the previous facial recognition feature offered in earlier versions of the OS. It can use a trusted Bluetooth device's presence to unlock a phone.

Here's how to set up Android Smart Lock to use a Fitbit (or any trusted Bluetooth device) to unlock a phone.

When it comes to unlocking your smartphone, the PIN or passcode isn't the only option for security. With advances such as biometric-based security in Apple's Touch ID and later Face ID, the ways to unlock smartphones have expanded.

Enter your password or pattern for your device. If you don't have one yet, open Settings, then go to Security > Screen Lock.
If you are creating a password, go to the Screen lock type section, and choose between Pattern, PIN, or Password for a Screen Lock.

Using Swipe doesn't allow you to set up Smart Lock.
To use the Smart Lock feature with a trusted Bluetooth device, make sure Smart Lock is turned on. Go to Settings > Security > Smart Lock.

You are prompted to enter your chosen Pattern, PIN, or Password before proceeding.
Select On-body detection.
Toggle Use On-body detection on.
In the Keep in mind dialog box, select Continue.
Return to the Smart Lock screen and select Trusted devices.
Select the + (Plus sign) next to Add trusted device.
Select your Fitbit.

If you don't see your Fitbit, you may need to enable Bluetooth or re-sync the Fitbit.
Confirm the addition of your Fitbit as a trusted device by selecting Yes, Add.

Depending on the range of your phone's Bluetooth radio, someone nearby could access your phone if the device you paired it to for Smart Unlock is nearby.

When it comes to unlocking your smartphone, the PIN or passcode isn't the only option for security. With advances such as biometric-based security in Apple's Touch ID and later Face ID, the ways to unlock smartphones have expanded.

Remove a Trusted Bluetooth Device in Smart Lock

When you no longer want to use the trusted Bluetooth device, turn off Smart Lock.

Go to Settings > Security > Smart Lock.
Enter your passcode and select Next.
Select Trusted devices.
Select your Fitbit.
Select Remove Trusted Device.

Unlocking your smartphone with a Bluetooth device can increase the risk of unauthorized access. For example, if you're in a meeting in the room next door to your office and your phone is left unattended on your desk, someone could access it without the passcode because your paired device—your Fitbit, watch, or other paired Smart Lock-trusted device—is within range for it to unlock the phone.

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