Unlike its gold predecessor, Apple is playing up the durability and scratch-resistance of the ceramic model as a luxury feature worth an extra $1,000. The company claims its proprietary material is four times harder than steel -- which could explain why it costs nearly four times as much. On the other hand, the chip upgrade and lower price for the Series 1 watch makes it a little more affordable to get an Apple product on your wrist. And for anyone following along at home, there are now five models of Apple Watch to choose from: Series 1, Series 2, Series 2 Nike+, Series 2 Hermés and that new ceramic model with the mouthful name: Apple Watch Edition Series 2. Making things slightly more confusing, the Series 2 is still available in rose gold, but like the iPhones and MacBooks, that's just a descriptive term for an aluminum finish.

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