YES it works with Fitbit charge

It worked awesome with my Fitbit charge. I stood where I got the strongest signal. Going low and high and eventually found it under the bed. I got strong signals all around the bed but until I put my iPhone to the floor it went over strong. Thank you for a great app. Hope I will not have to use it again

Rx_gal about Fitbit Finder - lost Fitbit, v1.6