: This is currently the most reliable source for both the original Fitbit Flex . You can find them in various conditions:
The and its successor, the Fitbit Flex 2 Go to product viewer dialog for this item. where can you buy a fitbit flex
is notably (up to 50 meters), allowing for tracking in pools or showers. : This is currently the most reliable source
Because these are older models, availability is primarily found on online marketplaces: eBay where can you buy a fitbit flex