As it turns out, there is a particular detail on the Google Pixel's page that was not correct. After a well-respected tester of the Android Community recorded data from the Google Pixel, it turned out the 5-inch HTC-built Google phone was not charging at the advertised 18W of peak power that the charger is rated for. After Android Poilice (perfect context for the publication's title) reached out to Google for clarification of the tester's findings, Google admitted an oversight in the description of the phone's specification pages when it listed both phones capable of charging at...
Source: http://www.gsmarena.com/google_confirms_only_pixel_xl_can_charge_with_18w_pixel_peaks_at_15w-news-21403.php
