“WatchPad 1.5 features a pager-like application for sending and receiving short messages. It also has Bluetooth and infrared connectivity for connection to a notebook PC, and a fingerprint sensor for user — or wearer — authentication.
Linux 2.4 runs on a 32-bit RISC processor, the frequency of which varies from 74MHz to 18MHz to help save power. By tinkering with Linux, IBM has reduced the amount of memory required to run the OS. In turn, this has helped increase the battery life to six hours. IBM has predicted all-day battery life will appear in a year or so.”