Before you start setting up your Pixel phone, you’ll need to install the Switch to Android app on your iPhone. You can find a direct link to the app here, or search the App Store for “Switch to Android” from Google. . It’s a small app, with little setup, so it’ll only take a few seconds. While you’re doing that, though, it’s a good idea to connect both your new Android phone and your iPhone to a charger to ensure their respective batteries have enough power to get through the transfer process.
Link: How to use Google’s new Switch to Android app to ditch your iPhone
via http://www.zdnet.com