The Fitbit.com Online Store has a 45-day return policy. Any product purchased from Fitbit can be returned for a refund for any reason within 45 days of shipment. If you purchased your Fitbit product elsewhere, contact the retailer to find out their return policy (often printed on the receipt).
The Fitbit Customer Support team is available to answer questions and get you back on track with troubleshooting assistance. In the unfortunate event your product is deemed defective within the warranty period, it may be eligible for replacement. For warranty terms and conditions see https://www.fitbit.com/legal/returns-and-warranty.
An extended warranty called the Fitbit Protection Plan is available for purchase with Alta, Blaze, Charge 2, and Flex 2 trackers purchased in the U.S. from fitbit.com. This plan increases the warranty period from one year to two years and also covers accidental damage, unlike the standard manufacturer's warranty. The full terms are available at https://www.fitbit.com/content/docs/store/fitbit_protection_terms.pdf.
For any assistance with your Fitbit product please contact Customer Support.