Free - Salford M5 - listed on Trash Nothing
I have 2 of these USB-A dongles, probably from my Fitbit Charge HR (circa 2015), if they are any use to anybody who has managed to keep an older Fitbit going. According to the internet: "The FB150/FB152OD wireless sync dongle is compatible with these legacy trackers: • Fitbit Charge HR • Fitbit Charge (original) • Fitbit Flex • Fitbit One • Fitbit Zip • Fitbit Surge • Fitbit Alta (first-generation)" so I don't think it'll work with the Fitbit Charge 2 onwards. Prefer them to go together. https://trashnothing.com/pics/QHtGYe8