Wearable communication devices, e.g. implemented in a watch, using short range communication e.g. to a cell phone allow a user to talk and listen, place and answer calls, send and receive text messages, initiate voice commands to mobile search for information and find locations, and be notified of incoming calls, texts, and events, all while a phone is nearby but not visible. Notification is performed with vibration, an LED light or OLED text display of incoming calls, texts, and calendar events. It allows communicating hands-free. The watches can be directly connected to a smartphone allowing using the watch as “remote control” for home appliances or any other devices via voice and buttons. Motion sensors such as accelerometer, magnetometer and gyroscope, together with audio generation device can be used for gaming applications.