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US sues Apple for illegal monopoly over smartphones
(www.theverge.com)
This is a most excellent place for technology news and articles.
You can only use an Apple Watch with an iPhone. While you CAN use one without a phone, you need an iPhone to configure it the first time (or if you need to reset).
Thry are very locked in.
I once got an Apple Watch as a bonus at work. Had to sell it to a buddy because I couldn't use it without an iPhone. So dumb.