If you’re curious about the new changes coming to iOS 9 and you’ve got an Apple Developer account, you can head over and get the latest operating system for Apple’s mobile devices (iPhone and iPad) from the developer website.
You’ll need to register your iPhone or iPad with the Developer website, first, then download the new iOS 9 beta and install it. Here’s the breakdown of getting iOS 9 onto your iPhone or iPad, which is required if you want to try and install watchOS 2 beta for your Apple Watch.

