Hey yeah I noticed the same thing but https://material.io/devices/ lists both devices as 411/731dp. The math for these devices just never find a source of truth, everywhere I look there is some weird rounding going on. Even if you did what I did and undo their math of how they arrived at 2.6 it doesn't add up. They list the dpi of Pixel at 441. 441/160 = 2.75625, not 2.6.