Your iPhone will expire in three years, says Apple

US electronic giant Apple has said the iPhones have a life expectancy of three years and so does the Apple watch while AppleTV devices expire in four years. In a recent update to its environmental policy, Apple addressed the question of how long an Apple device is expected to remain in use. According to a report on Forbes.com, iPhone's productive life cycle will be up at the three-year mark, as will the Apple Watch while your OS X -- a series of operating systems developed and marketed by Apple  -- and AppleTV devices will get an extra twelve months to reach the four-year mark.