![](https://gallery-assets.fitbit.com/public/9pwUDTPjINanCVX_ukqD1./9sgFWuber11SeE1F@1x.png)
![](https://gallery-assets.fitbit.com/public/9pwUDTPjINanCVX_ukqD1./qTGDF8aYM5uvy4Ef@1x.png)
the Fitbit mobile app
Payment required
This app requires payment and is managed by a 3rd-party developer that is not endorsed by Fitbit.
Proceed with caution.
Payment required
This app requires payment and is managed by a 3rd-party developer that is not endorsed by Fitbit.
Proceed with caution.
Description
Shows your heart rate for the previous five seconds, snaking up and down the screen in real time.