Of course

but I did not buy the series 3 stainless steel anymore. I got Nike Plus since I plan to get the best (edition) of the series 4 next year. The series 4 will be the revolutionary watch others will see

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Get aluminum watch if you like to upgrade yearly, no point to invest so much money on a watch that will be obsolete yearly due to technology changes or better functionality. Unless you want to keep it for more than 2 years and the technology in the Watch satisfies you, then spend the money. Having more than 1 or two Watches sound absurd and wasteful. Especially, when those watches become outdated technologically.
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excellent question!!