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The IBM WatchPad was a line of earlier smartwatch prototypes, produced in 2000-2002.cite-ref-1[1]cite-ref-2[2]cite-ref-3[3]cite-ref-4[4]cite-ref-5[5]

• Overview

• Models

• See also

• References

• External links

In June 2000, IBM displayed a prototype for a wristwatch that ran Linux. The original version had only 6 hours of battery life, which was later extended to 12.cite-ref-6[6] It featured 8 MB of RAM and ran Linux 2.2.cite-ref-ibm-7-0[7] The device was later upgraded with an accelerometer, vibrating mechanism, and fingerprint sensor. IBM began to collaborate with Citizen Watch Co. to create the "WatchPad". The WatchPad 1.5 features a 320 × 240 QVGA monochrome touch sensitive display and runs Linux 2.4.cite-ref-watchpad-8-0[8]cite-ref-9[9] It also features calendar software, Bluetooth, 8 MB of RAM and 16 MB of flash memory.cite-ref-10[10]cite-ref-pcworld-11-0[11] Citizen was hoping to market the watch to students and businessmen, with a retail price of around $399.cite-ref-pcworld-11-1[11]

• IBM WatchPad (2000)

• IBM WatchPad 1.5 (2001)

• ThinkPad laptops

• WorkPad handhelds

cite-note-11. ↑ "From IBM to Microsoft - A Brief History of The Smartwatch". International Business Times UK. 2013-09-04. Retrieved 2021-12-18.

cite-note-22. ↑ "Les smartwatch avant l'Apple Watch - Page 11 sur 21". Tom’s Hardware : actualités matériels et jeux vidéo (in French). 2015-02-20. Retrieved 2021-12-18.

cite-note-33. ↑ "The Smartwatches That Paved The Way". TechCrunch. Retrieved 2021-12-18.

cite-note-44. ↑ "IBM, Citizen update WatchPad wearable computer - PC World Australia". www.pcworld.idg.com.au. Retrieved 2021-12-18.

cite-note-55. ↑ "Apple Watch and beyond: The strange history of smartwatches, in pictures". ZDNet. Retrieved 2021-12-18.

cite-note-66. ↑ citerefshankland2001Shankland, Stephen (23 March 2001). "IBM clocks in with new Linux watch". Cnet.com. Archived from the original on 17 June 2011. Retrieved 15 September 2010.

cite-note-ibm-77. ↑ "Linux on a Wrist Watch". IBM. Archived from the original on 13 July 2011. Retrieved 15 September 2010.

cite-note-watchpad-88. ↑ "WatchPad 1.5". IBM. Archived from the original on 5 December 2001. Retrieved 15 September 2010.

cite-note-99. ↑ citerefgrc15r2010grc15r (20 June 2010). "WatchPad 1.5". YouTube. Archived from the original on 25 November 2014.{{cite web}}: CS1 maint: numeric names: authors list (link)

cite-note-1010. ↑ citerefkanellos2001Kanellos, Michael (11 October 2001). "Linux watch: Only time will tell". Cnet.com. Archived from the original on 17 June 2011. Retrieved 15 September 2010.

cite-note-pcworld-1111. ↑ citerefmiyake2001Miyake, Kuriko (11 October 2001). "Is That a PC on Your Wrist?". PC World. Archived from the original on 24 September 2010. Retrieved 15 September 2010.

• Official website at the Wayback Machine (archived 2002-06-09)