How do I return a Sense to Fitbit?

[JayNispel]

I’ve had this about six weeks. It runs out of power in about 36 hours. It loses pairing repeatedly with a device without problems with other devices including other Fitbits. Now it took over 24 hours to be detected, then dropped out again. It’s a complete waste of money. If I can’t return it, I’ll just have to put it in recycling. Has anyone gotten them to take one of these back? Thanks.

Moderator Edit: Clarified subject

[SteveH]

If you buy direct from Fitbit you have 45 days to return it for a refund for any reason. If not, then it will be down to the retailer's policy as Fitbit's warranty only offers a replacement in the event of a defect and not a refund.

[SunsetRunner]

Contact customer service. If it's still under warranty, as it should, they will replace it. They did that with mine. Not that the new one is experiencing less issues.. 

[Runnertoo]

I have had lots of issues with mine as well. Mostly with the GPS unit and the interface to 3rd party apps. They replaced mine with a brand new unit but even that one still has issues