This year's “S-upgrade” to the iPhone 6 and iPhone 6 Plus should introduce “the biggest camera jump ever,” as Apple pundit John Gruber claimed on his Daring Fireball blog. Numerous rumors have pointed to a resolution upgrade in the form of a twelve-megapixel camera on the back.
Thursday, an unconfirmed internal document that surfaced on Chinese microblogging website Weibo suggested that the back-facing camera of the iPhone 6s and iPhone 6s Plus will also capture video in 4K resolution.