A wearable device includes a main body and a wristband. The main body includes a main case and a bottom cover, a spring bar is disposed on the wristband, a connection member configured to couple to the spring bar is disposed on the main case and has two connection lugs, an accommodating hole is provided on each connection lug, one end of the accommodating hole has an opening, the other end of the accommodating hole is provided with a limiting portion, the limiting portion is provided with a through hole, a locating groove is provided on the connection lug, a button is disposed on the connection lug, the button is slidably disposed in the accommodating hole, a limiting groove is provided on the button, a limiting portion is disposed on the bottom cover, and the limiting portion is located in the locating groove and extends into the limiting groove.