I wish they would have kept the width at 79.5 mm, but losing a little over 2mm might be ok. I would have also preferred they had also kept the shorter height, but the new form factor is still probably still superior to a Z Fold, but I have not looked at the Z Fold 6 size yetI believe I found dimensional info:
Dimensions (folded) 155.2 x 77.1 x 10.5mm
6.11x3.04x0.43
Dimensions (unfolded) 155.2 x 150.2 x 5.1mm
6.11x5.91x.201
Original Fold
Folded: 139.7 x 79.5 x 12.1 mm
5.5x3.13x0.47
Unfolded: 139.7 x 158.7 x 5.8 mm
5.5x6.25x.228