Open the iPhone Settings app, then choose General, followed by Software Update. Next, click on Download and Install, and it’ll be on your phone shortly. It’s a smallish update, as these things go, weighing xxxMB on my iPhone 16 Pro Max.

Note that iOS 26 is still in beta, so these features could be buggy or not work properly. We recommend downloading a beta only on something other than your primary device. Because this isn't the final version of iOS 26, the update might be buggy and battery life may be short so it's best to keep those troubles on a secondary device.