Android, which in its earliest days bore more resemblance to a BlackBerry than a modern smartphone, evolved significantly after Apple’s 2007 introduction of the iPhone.
Before Apple showed off its smartphone, Android lacked touchscreen support and depended on physical keys for control, according to an internal Google document made public as part of the Apple-Samsung trial. By the time the software was finalized for version 1.0, though, touchscreen support and a number of other features had been added.
By late 2007, “a touchscreen for finger-based navigation — including multi-touch capabilities — is required.”
Here’s what Android looked like by the time the software requirements reached 1.0 in November 2007:
This article originally appeared on Recode.net.