Note,NOT Work with Gear S3,Gear Sport,and Gear S2
Compatible Devices:Samsung Galaxy Watch 4 Classic 42mm/46mm,Galaxy Watch 4 40mm/44mm,Galaxy Watch 3 41mm/45mm,Galaxy Watch and Galaxy Watch Active 1/2 40mm/44mm
Buit-in strong magnetic, securely hold and keep Galaxy Watch in place for charging.
Build-in smart chips protecting watch from over-current or over-charging.
USB-C Port,Input:5V/1A,Output:2.5W
12-month warranty. Feel free to contact us once you meet quality/usage problem.