Get started

Fitbit Sense is the advanced smartwatch that helps you tune in to your body with tools for heart health, stress management, skin temperature trends, and more.

Take a moment to review our complete safety information at fitbit.com/safety. Sense is not intended to provide medical or scientific data.

What's in the box

Your Sense box includes:

Fitbit Sense with the screen turned off Fitbit charging cable with a USB plug on one end Black Fitbit band
Watch with small band
(color and material varies)
Charging cable Additional large band

The detachable bands on Sense come in a variety of colors and materials, sold separately.

Charge your watch

A fully-charged Sense has a battery life of 6+ days. Battery life and charge cycles vary with use and other factors; actual results will vary.

To charge Sense:

  1. Plug the charging cable into the USB port on your computer, a UL-certified USB wall charger, or another low-energy charging device.
  2. Hold the other end of the charging cable near the port on the back of the watch until it attaches magnetically. Make sure the pins on the charging cable align with the port on the back of your watch.

Line art of a smartwatch being placed down on top of the charger so that the two snap together magnetically

Charge Sense for 12 minutes for 24 hours of battery life. While the watch charges, tap the screen twice or press the button to turn the screen on. The battery level appears for several seconds, then disappears so you can use your watch while it charges. Charging fully takes about 1-2 hours.

Screenshot of the battery charging status of 49% between the time and date, with concentric orange circles in the background

Set up Sense

Set up Sense with the Fitbit app for iPhones and iPads or Android phones. The Fitbit app is compatible with most popular phones. See fitbit.com/devices to check if your phone is compatible.

Icon of a phone displaying several stats

To get started:

  1. Download the Fitbit app:
  2. Install the app, and open it.
    • If you already have a Fitbit account, log in to your account then tap the Today tab Fitbit logothen your profile picture then Set Up a Device.
    • If you don't have a Fitbit account, tap Join Fitbit to be guided through a series of questions to create a Fitbit account.
  3. Continue to follow the on-screen instructions to connect Sense to your account.

When you're done with setup, read through the guide to learn more about your new watch and then explore the Fitbit app.

For more information, see the related help article.

Connect to Wi-Fi

During setup, you're prompted to connect Sense to your Wi-Fi network. Sense uses Wi-Fi to more quickly transfer music from Pandora or Deezer, download apps from the Fitbit Gallery, and for faster, more reliable OS updates.

Sense can connect to open, WEP, WPA personal, and WPA2 personal Wi-Fi networks. Your watch won't connect to 5GHz, WPA enterprise, or public Wi-Fi networks that require more than a password to connect⁠—for example, logins, subscriptions, or profiles. If you see fields for a username or domain when connecting to the Wi-Fi network on a computer, the network isn't supported.

For best results, connect Sense to your home Wi-Fi network. Make sure you know the network password before connecting.

For more information, see the related help article.

See your data in the Fitbit app

Open the Fitbit app on your phone to view your activity, health metrics, and sleep data; log food and water; participate in challenges; and more.