Buy Fitbit One [OFFICIAL]
Since these devices are several years old, the internal lithium-polymer battery may have degraded. If buying used, ask the seller how long a single charge lasts.
If you are looking to purchase one today, here is the best way to go about it: buy fitbit one
The Fitbit One still works with the current Fitbit app , but you may need the original USB charging cable and potentially a Bluetooth-enabled smartphone to set it up. Modern Alternatives Since these devices are several years old, the
Occasionally, third-party sellers list "Renewed" or old stock units, but these are becoming increasingly rare. What to Watch For Prices vary wildly depending on condition, sometimes ranging
This is your best bet for finding a Fitbit One . You can often find them "New In Box" (NIB) or used. Prices vary wildly depending on condition, sometimes ranging from $50 to over $150 because of their cult-favorite status.