A watch phone is a smartwatch that doubles as a mobile phone.

Sony is now selling an Android compatible wrist watch called Sony SmartWatch.

Neptune Pine, a full-feature smartwatch designed and developed by Neptune Computer Inc.

The Fossil Wrist PDA is a smartwatch that runs Palm OS.

A smartwatch or smart watch is a computerized wristwatch with functionality enhanced beyond timekeeping, often with features comparable to a PDA.

The Sony SmartWatch is a wearable device that connects to an Android phone and can display Twitter feeds, SMS, among other things.

The Pebble Watch is a smartwatch developed by Pebble Technology and released in 2013 that was funded by raising money via the crowd funding platform Kickstarter.

Motoactv (styled MOTOACTV) is a smartwatch sold by Motorola which contains a number of hardware features and software applications tailored to fitness training.

For iOS there is an Widget SDK, any application in iOS can add and control a widget on a MetaWatch smartwatch.

The No-Slot Clock, also known as the Dallas Smartwatch (DS1216), was a 28-pin chip-like device that could be used directly in any Apple II or Apple II compatible with a 28-pin ROM.

Sony SmartWatch hands-on (video) - Engadget It's connected to Bluetooth through your phone - acting as a notifier and music play as well as the capability to answer calls and check-up on social networks like Facebook and Twitter.

Meta Watch provides SDK for developing embedded firmware on smartwatch under IDEs: IAR Embedded Workbench for TI MSP430 and TI Code Composer Studio (CCS).