Go to Ebay. It’s simple. Most ship from China so think estimated shipping time. This one is more but comes from California.
https://www.ebay.com/itm/One-Set-Original-Charger-Charging-Connector-For-Samsung-Gear-Fit-2-SM-R360-R365/113223702491?_trkparms=aid%3D777003%26algo%3DDISCL.MBE%26ao%3D1%26asc%3D20161005235629%26meid%3Db2f3e748958a46919d9df184b8ad062c%26pid%3D100689%26rk%3D1%26rkt%3D18%26sd%3D142968045806%26itm%3D113223702491&_trksid=p2385738.c100689.m4649