Specially Designed:DO NOT NEED take off the case when charging. Save you time also you can charge versa without the case. perfect compatible NOTE: It ONLY works with Versa screen protector case. All around protection:Made of flexible and sturdy premium TPU material for 360 degree all-round protection and a better viewing experience, keep your watch away from scratches, drop, bump. Quick Charger and Stable Performance:Made of Pure copper wire and high quality plastic, this charger cable stands 10000+ times of insertion and extraction tests and 1000+ times of bending test. Built-in over- voltage and over-current protection circuits , protects your Versa from being damaged when charging. Compatibility and Specification:ONLY compatible with Fitbit Versa Edition. (NOT for Fitbit Versa 2/3).