Best answer: No you cannot use Samsung Galaxy Z Fold 7 cases on the Galaxy Z Fold 8 Ultra. Though they might look very similar in shape and size, minor differences in the camera module and hinge make this impossible.

When you hold the Samsung Galaxy Z Fold 8 Ultra and the last-gen Galaxy Z Fold 7 in your hand, or look at pictures of them next to each other, it is very reasonable to think they could share cases. After all, their dimensions are nearly identical, even on paper.

Here's a comparison of the measurements of the two large-form foldable devices.

Looking at the Samsung Galaxy Z Fold 8 Ultra vs. Samsung Galaxy Z Fold 7, the numbers hint at potential backward compatibility of cases. After all, the measurements match almost perfectly.

When folded, both the Galaxy Z Fold 7 and the Z Fold 8 Ultra measure 158.4 x 72.8 x 8.9 mm, and when unfolded, they're almost identical too, 158.4 x 143.2 x 4.2mm and 158.4 x 143.2 x 4.1 mm. Even their displays have the same sizes, 8 inches internally and 6.5 inches externally.

So what gives? Why can't you use the phone cases for the Galaxy Z Fold 7 on the Z Fold 8 Ultra? Well, if you can't tell from the pictures, the raised unit housing the camera lenses does not match, differing in sizing and placement.

The second difference hindering backward compatibility of cases between the two Z Fold models is the hinge. Because of these two small but important discrepancies between the two Z Fold devices, you cannot use cases for either foldable on the other.

It's hard to say whether these were functional design changes, or alterations that were made to warrant purchasing new phone cases so Samsung could make more money. Regardless, if you've taken advantage of the excellent Samsung Galaxy Z Fold 8 Ultra preorder deals and are waiting for your new foldable, be sure to check out the best Galaxy Z Fold 8 Ultra cases to go with it too.

Namerah enjoys geeking out over accessories, gadgets, and all sorts of smart tech. She spends her time guzzling coffee, writing, casual gaming, and cuddling with her furry best friends. Find her on Twitter @NamerahS.