Z Fold 7 vs Z Fold 8 Ultra: What Changed & What Still Fits

What this is: every difference between the Galaxy Z Fold 7 and the Galaxy Z Fold 8 line, written as a diff, like a changelog. We mark each line CHANGED, NEW or UNCHANGED, and because we design cases for a living, we add the one column no tech site gives you: what each change does to case fit. Both Z Fold 8 models launched on 22 July 2026; every figure below is from Samsung's confirmed specifications.

Every other Z Fold 7-vs-8 comparison stops at "the camera is better." This one answers the question a Fold owner actually has at upgrade time: if I switch phones, does any of my gear come with me? This year, the answer depends on which Z Fold 8 you buy.

By Caleb Tran · FoldifyCase design team · Updated 18 October 2026

Shopping for a case rather than a phone? Our best Galaxy Z Fold 7 cases guide covers the phone you have now, and our Galaxy Z Fold 8 Ultra case picks cover its successor.

Z Fold 7 vs Z Fold 8 Ultra: what changed

Charging, battery, the ultrawide camera, screen brightness, the chip and the hinge changed; the folded size, weight, screen sizes, main and telephoto cameras and IP48 rating did not. Samsung split the line in two. The Galaxy Z Fold 8 Ultra is the direct successor to the Z Fold 7 (same tall book shape), so that's the diff below. The standard Galaxy Z Fold 8 is a new, wider body; it gets its own entry at the end. Green NEW lines are additions; amber CHANGED lines are modifications; grey UNCHANGED lines stay put.

Hinge and thickness

Thickness is unchanged where it counts: folded, the Z Fold 7 and Z Fold 8 Ultra are both 8.9 mm thick, and unfolded the Ultra is a tenth of a millimetre thinner at 4.1 mm against 4.2 mm. Both weigh 215 g.

The hinge is where the Fold 8 vs Fold 7 difference is felt rather than measured. Samsung revised it for both Z Fold 8 models: it told media the hinge tension is lighter, so the magnets that hold the phone shut don't need to be as strong, and the chassis leaves a bit more of a gap along the long edge for your fingers. The result, per 9to5Google's hands-on, is a phone that's much easier to open than the Z Fold 7, with a much less visible crease. For the wide Z Fold 8, Samsung quotes a hinge rating of 500,000 folds.

None of this changes the folded footprint, which is why it doesn't affect case fit. For what tends to wear out first over years of folding, see our guide to Galaxy Z Fold 8 hinge durability.

How our case range maps to each Z Fold 8

As covered above, the Ultra keeps your Z Fold 7 case and the wide Z Fold 8 needs a new one. Here's how our range maps across, going by the models each case is sold for on its product page.

Shop by phone: Galaxy Z Fold 8 Ultra cases, Galaxy Z Fold 8 cases or Galaxy Z Fold 7 cases. For the detail on each model, see Will your case fit the Z Fold 8 Ultra? and Galaxy Z Fold 8 (wide) case fit & dimensions.

Fold 8 vs Fold 7: upgrade, or hold?

Strip away the spec sheet and it comes down to four honest reads.

• The case for upgrading to the Z Fold 8 Ultra: 45W wired and 20W wireless charging, 600mAh more battery, a 50MP ultrawide, a brighter panel, an easier-opening hinge and seven OS updates, and your cases come with you. If you're charging twice a day, or you're on a Z Fold 5 or 6, it's a real upgrade.
• The case for buying a Z Fold 7 now: at around US$1,074 it's roughly half the Ultra's launch price, with the same folded body, the same 200MP main camera, the same 8-inch inner display and the same IP48 rating.
• The case for staying on your Z Fold 7: if your battery still gets you through the day, hold. When your current case wears out, replace it like-for-like; it'll still fit if you move to the Ultra later.
• The case for the standard Z Fold 8: if you want the 4:3 inner screen for reading and split-screen, it's a genuinely different phone, so plan on new cases. Our Z Fold 8 vs Z Fold 8 Ultra comparison weighs the two.

The rule this year is simple: Z Fold 7 → Z Fold 8 Ultra keeps your case; Z Fold 7 → Z Fold 8 means a new one.

Still on the Z Fold 7, or just moved to the Ultra? Cover it properly.
Shop Z Fold 7 cases → Shop Z Fold 8 Ultra cases →

Frequently asked questions

What is the difference between the Z Fold 7 and Z Fold 8?

It depends which Z Fold 8. The Z Fold 8 Ultra is the direct successor: same folded size and weight, with faster 45W charging, a 5,000mAh battery, a 50MP ultrawide and a brighter screen. The standard Z Fold 8 is a new wider model (123.9 × 81.9 × 9.7 mm folded) with a 7.6-inch 4:3 inner screen and no telephoto.

What are the main differences between the Z Fold 7 and Z Fold 8 Ultra?

Charging rises from 25W wired and 15W wireless to 45W and 20W, the battery grows from 4,400mAh to 5,000mAh, the ultrawide goes from 12MP to 50MP, peak brightness goes from 2,600 to 3,000 nits, and the chip moves to Snapdragon 8 Elite Gen 5 with Android 17. The folded size, weight, 8.0-inch and 6.5-inch displays, 200MP main camera, 3× telephoto and IP48 rating are unchanged.

Did Samsung change the hinge on the Z Fold 8?

Yes. Samsung revised the hinge for both Z Fold 8 models: the tension is lighter, so the magnets that hold it shut don't need to be as strong, and the chassis leaves a bit more finger gap along the long edge. It opens more easily than the Z Fold 7, and 9to5Google reports a much less visible crease.

Is the Z Fold 8 Ultra thicker than the Z Fold 7?

No. Folded, both are 8.9 mm thick and measure 158.4 × 72.8 mm; unfolded, the Z Fold 8 Ultra is slightly thinner at 4.1 mm against 4.2 mm. Both weigh 215 g. The wide Z Fold 8 is the thicker phone at 9.7 mm folded and 4.5 mm unfolded.

Does the Z Fold 8 or Z Fold 8 Ultra support the S Pen?

No. Neither Z Fold 8 model supports the S Pen, and the Z Fold 7 didn't either. The S Pen Fold Edition and S Pen Pro only work with the Z Fold 3, 4, 5 and 6, and no case can add S Pen support.

Related guides

• Best Galaxy Z Fold 7 cases (2026): our top picks for the Z Fold 7 footprint.
• Best Galaxy Z Fold 8 Ultra cases: picks for the Z Fold 7's successor.
• Galaxy Z Fold 8 specs, price & release date: confirmed specs for both Z Fold 8 models and the Z Fold 7.
• Z Fold 8 vs Z Fold 8 Ultra: which to buy: the buyer's decision between the two new models.
• Will your case fit the Z Fold 8 Ultra?: the camera cut-out check in detail.
• Galaxy Z Fold S-Pen guide (2026): which Z Fold models support the S Pen.
• Best Galaxy Z Fold 7 hinge cover cases (2026): hinge protection for the Z Fold 7 footprint.

Sources

• GSMArena: Galaxy Z Fold8 Ultra full specifications
• GSMArena: Galaxy Z Fold7 full specifications
• 9to5Google: Samsung made it way easier to open up its Galaxy Z Fold 8 foldables (22 July 2026)