In the names of things, we have the following:
Samsung Galaxy S 7 Edge
Samsung Galaxy S 7
Samsung Galaxy Note 7
LG G 5
LG V 20
Moto Z Droid
Moto Z Play
Apple iPhone 7
So those are all Company, Lineup, Model - as long as you treat Samsung Galaxy as the company and S or Note being the model. But the Samsung Galaxy S did not receive a number because it was the first.
HTC does it differently this year with the HTC 10, so no line number, just the model name
Google Pixel seems to be following the the group with the Google Pixel (Company, Line), where the first in the line doesn't need a model number because it's the only one. The next year would be expected to be the Google Pixel 2 (and Google Pixel 2 XL), etc. This is as long as we are to believe that Pixel is the line of products, rather than this year's model.