Logan Teffertiller

This isn’t the Pro variant- the 11” and the 12.9” Pros from November last year use the A12X while the Air 3 uses the A12.

appears to be 6; the contacts are visible in the last picture below the speaker on the top left.

the display itself looks like it’s round but the frame is octagonal so it will fit in the chassis without rotating. that would be my best guess.