In June 2000 The original version had only 6 hours of battery life, It featured 8MB of memory.
Ran Linux 2.2., vibrating mechanism, and fingerprint sensor. The WatchPad 1.5 features a 320 × 240 QVGA monochrome touch sensitive display and runs
Linux 2.4. It also features calendar software, Bluetooth, 8 MB of RAM and 16 MB of flash memory.