Sony Ericsson LiveView

The Sony Ericsson LiveView is a wearable device that connects to an Android phone and can display Twitter feeds, RSS feeds, SMS, control the phone's media player, and is capable of running third-party plugins obtainable from Google's Play Store. It is compatible with most Android-powered devices.
LiveView comes with a belt clip and watch band and features a 128x128 OLED display, and Bluetooth radio.
LiveView was introduced on 28 September 2010 and released by the end of the year.