How do I change an activity on my Fitbit charge 3

If your Fitbit device isn't showing your heart rate, try the followingtroubleshooting tips in the order shown. After each tip, view your heart rate to see if you solved the problem. ... Fitbit Alta HR, Fitbit Charge 2, Fitbit Charge HR-choose a section below to make sure your heart rate tracking setting is set to Auto

go online and contact Fitbit. they will replace it.

Try a wall charger, have you changed anytime in the computers bios?

Download the app on your phone or hook up the device to your computer, go to settings, and you should find it there.

Fitbit Store: Buy Surge, Charge HR, Charge, Flex, One, Zip ...

https://www.fitbit.com/store

FitbitBuy Fitbit devices and accessories at our official online store for free shipping on $50+, 45-day money back guarantee and 1 ... Interchangeable Bands ... Fitbit Charge HR™. HEART RATE + FITNESS WRISTBAND .... United States (change).

Fitbit Charge HR Review: This Is The One You Want

gizmodo.com/fitbit-charge-hr-review-the-king-of-fitness-tracke...

GizmodoFeb 4, 2015 - The Charge HR, on the other hand, has a standard watch strap with a closure that ... Well, most fitness trackers out there are really just glorifiedpedometers. ... With the HRM, I took my pulse (or had a friend take it) and then check the display. ... Fitbit claims the Charge HR will last "up to five days" on a fully ...

Fitbit Charge HR Fitness Wireless Activity Wristband Review

The Fitbit One tracker is powered by a rechargeable built-in battery. To charge your Fitbit One, align the gold contacts on your tracker with the gold contacts on the inside of the charging cable, then plug it into your computer's USB port or any other USB charging device.

More information is available on the Fitbit website:
https://help.fitbit.com/customer/portal/articles/798866-how-do-i-charge-my-one-

Hope that helps!