Wearable devices are provided. The wearable device may include a body enclosed by: a front shaped as a rounded square or a rounded rectangle a back opposite to the front and an upper side, a lower side, a left side and a right side, which couple the front and back and are between the front and back. The wearable device may also includes: an upper band coupled to the upper side a lower band coupled to the lower side a display placed on the front of the body a camera module disposed on the upper side and a key disposed on the lower side, the key being operated by being pressed.