Buy — Fitbit One

The silicone clip is prone to tearing over time. Ensure the listing includes the silicone holder , or check if you can find a replacement clip online separately.

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 buy fitbit one

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. The silicone clip is prone to tearing over time