The picture above shows a wrist watch, CEC GSM F88, which has features like built in mobile phone, color display, speaker phone for conferencing, and a 3-megapixel camera for video conferencing.
It weighs just around 3.5 ounces or 100 grams and is available for around $1100.
Other features of this product include a built-in microphone, voice dialing, 4 minutes of video recording, infrared connectivity, tools for scheduling and alarm clock.
The number pad can be found on the straps and the product comes with pre-installed world cup games.
Considering the size of the product, it has an amazing set of features and seems to be missing only a MP3 player and FM radio.