Google's new Pixel phones come with Android 7.1 Nougat

Google has announced Android 7.1 Nougat, which adds a number of features to Android 7.0 that launched earlier this year. Android 7.1 brings new features to all devices, but it also includes a number of special things that are exclusive to Google's new lineup of Pixel phones.
The Pixel phones will have Google's new launcher, Google Assistant, a phone and chat tech support service, unlimited, original-quality backup for photo and video to Google Photos, and a new Smart Storage feature that automat