For MacBooks (and Mac desktops — anything that runs OS X), that’s four years for the products’s “first owner.” Presumably, Apple expects users to pass on laptops to others before turning around and buying a new one. MORE: Best Apple Laptops The least expensive MacBook currently available is the 11-inch MacBook Air for $899, which translates to $224.75 per year of expected use. The most expensive MacBook is a 15-inch MacBook Pro with Retina display updated to a 2.8-GHz Intel Core i7 processor and a 1TB PCIe SSD for $3,199, or $799.75 per year of expected use. Apple also assumes that devices running tvOS will be used for four years, while iOS and watchOS owners will get three years out of their devices before moving on. The periods of time are, of course, estimates, and your MacBook may very well last longer than four years. Last year’s OS X update, El Capitan, runs on some Macs introduced as far back as 2007.  If you are looking to recycle your Mac, you can do so at an Apple Store. You also can check out our guide to getting rid of your old laptop.

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