Siemens prototype wristwatch phone is a triband miniaturized device that is operated by voice dialling and scrolling through the menu functions.

It has an integrated antenna, WAP 1.1, speaker and mic, weighs 36 grams and has a volume of single 28 cm3, using a 550mAh battery.

Using it, you really need the handsfree mic that is bundled with it. The sound quality for the prototype phone we used was excellent.

Siemens have placed the battery in the base/wriststrap of the phone, so that the GSM module clips off the battery and can be used in other devices that Siemens are developing to complement this technology.

The only draw-back is the lack of a key-board for inputting names and writing SMS. There are only 2 major controls for input, which takes a while to master.