The Pixel 9 line of smartphones has one unique feature in the Android world — the ability to copy data from another device after initial setup. Google has announced that this feature will be available in other Android smartphones in 2025.
Google claims that this will allow you to check out your new phone first and transfer your data later so that you can "quickly complete your initial setup and get your data when you’re ready."
If you use the app to switch from an iPhone to an Android device, you'll experience 40% faster data transfer.