The new Air is thinner, but still slightly larger in volume, and ~35% heavier than the last gen of 12" Macbooks.
--
2012 12" Macbook:
Height: 0.52 inch
Width: 11.04 inches
Depth: 7.74 inches
Weight: 2.03 pounds
Volume 44.43 cubic inches
--
2022 13" Air:
Height: 0.44 inch
Width: 11.97 inches
Depth: 8.46 inches
Weight: 2.7 pounds
Volume 44.56 cubic inches
