One of the features buried in Android N while it was still a Developer Preview was seamless update. Just like Chromebooks, Android devices would be able to download new OTAs in the background, install them while they're still running, and only switch to the updated software after a reboot. We later learned that existing Nexus devices would not benefit from the option since they didn't have the partitioning necessary to manage the technical feat of having two firmwares installed at the same time, even if temporarily.

So in order to see seamless update in action — or not see them, that's the goal really — we had to wait until the Pixel shipped, since it's the first phone to support them out of the box, and until there was an OTA update for it.

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