WatchPad 1.5 hardware overview
 System specifications
| Hardware |
| Watch size |
65mm x 46mm x 16mm |
| Weight |
43g w/o band |
| CPU |
Low power 32-bit CPU (18-74 MHz) |
| I/O device |
Touch panel, Stem switch, Buttons |
| Display |
320x240dot B/W STN LCD |
| Memory |
Low-power DRAM 8MB, Flash 16MB |
| Communications |
Bluetooth (V1.1w/voice), IrDA (V1.2), UART (Cradle) |
| Power |
Li-Ion rechargeable |
| Other |
Speaker, Mic, Fingerprint sensor, Accelerometer,
Vibrator |
| Cradle |
RS232C, AC-adapter (or AA battery x4) |
| Software |
| OS |
Linux version 2.4 |
| Bluetooth stack |
IBM BlueDraker
(L2CAP,SDP,RFCOMM) |
 Bluetooth applications
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