I up graded from fold 4 to fold 6, and what a difference. I was done with this form factor, and now I am so happy I did not change. The minor difference in size and change in in shape are such a big difference. Like night and day to me. The hinge is definitely improved. The processing and performace are exceptional, samsung's UI is very well intergrated. I have all samsung wearables, and its seemless to connect old and new wearables. The preorder sale price was also a great deal. I highly recommend getting the insurance offer from Samsung or your mobile carrier as this is a unique device. I highly recommend the Fold 6!
The Fold 6 is thinner and quite a bit lighter. The seam is less visible than before. This phone is a huge winner. The data tranfer from Fold 5 was smooth and quick.