User's Manual

sleep patterns, log food and water, identify trends, participate in challenges, and

much more. We recommend syncing at least once a day.

The Fitbit app uses Bluetooth Low Energy technology to sync data with FB415 and

to update apps installed on your watch.

Each time you open the Fitbit app, FB415 syncs automatically when it's nearby.

FB415 also syncs with the app periodically if All-Day Sync is on. To turn on this

feature:

From the Fitbit app dashboard, tap or click the Account icon ( ) > FB415 tile

> All-Day Sync.

You can also use the Sync Now option in the app at any time.

Wear FB415

Place FB415 around your wrist. The side of the watch marked with "fitbit" should

be on the bottom of your wrist. If you need to attach a different size wristband, or

if you purchased an accessory wristband, you'll find instructions in "Change the

wristband” on page 10.

Placement for all-day wear vs exercise

When you're not exercising, wear FB415 a finger's width below your wrist bone.

For optimized heart-rate tracking while exercising, keep these tips in mind:

• Try wearing FB415 higher on your wrist during exercise for an improved fit

and more accurate heart-rate reading. Many exercises, such as bike riding

or weight lifting, cause you to bend your wrist frequently, which can

interfere with the heart-rate signal if the watch is lower on your wrist.