Samsung Galaxy Z Fold 8 Ultra Leaks: Three Upgrades, Same Weight!

Wednesday, 03 June 2026 at 09:24

The 4,400mAh era is over. Three generations. Finally.

Summary

Ice Universe confirmed via X that the Galaxy Z Fold 8 Ultra will carry a 5,000mAh battery with 45W wired charging — up from the Z Fold 7's 4,400mAh and 25W, representing the biggest battery and charging upgrade in the Fold series' history.
Despite the larger battery, the Fold 8 Ultra maintains the same 215g weight as the Z Fold 7 while actually trimming 0.1mm off the unfolded thickness, dropping from 4.2mm to 4.1mm — the same slim measurement as the wider Z Fold 8 variant.
The device will also add approximately 20W Qi2.2 wireless charging — a first for the Fold Ultra lineup — meaning users can charge via MagSafe-compatible accessories for the first time.
The overall design, display sizes, and form factor remain unchanged from the Z Fold 7 — which Ice Universe described as the Fold 8 Ultra being "basically the Galaxy Z Fold 7 with a larger battery and faster charging" plus a new chip.
Both the Fold 8 Ultra and the wider Z Fold 8 are expected to debut at Samsung Galaxy Unpacked on July 22, 2026 in London, alongside the Galaxy Z Flip 8, Galaxy Watch 9 series, and Samsung's first Galaxy AI Glasses.

Samsung kept the Galaxy Z Fold at 4,400mAh and 25W charging through the Fold 5, Fold 6, and Fold 7 — three full generations. The jump to 5,000mAh and 45W on the Fold 8 Ultra in a single step is the biggest charging upgrade the Fold series has ever seen, and the fact that the weight didn't move makes it more impressive.

The Engineering Feat Nobody Is Talking About Loudly Enough

Here's the number that deserves more attention. Samsung increased battery capacity by 600mAh — a 13.6% jump — while also reducing thickness by 0.1mm and holding weight flat at 215g. In a foldable chassis that carries two display panels, a hinge, and increasingly capable camera hardware, those three things simultaneously moving in the right direction is not easy. It points directly at silicon-carbon battery chemistry — the same technology enabling competitors like OPPO's Find N6 and Honor Magic V5 to push 6,000mAh in their book-style foldables. Samsung has been conservative in adopting it. The Fold 8 Ultra appears to be the inflection point.

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The 45W charging jump from 25W also deserves honest context. The Galaxy Z Fold 7's 25W charging was a legitimate and persistent complaint among Fold owners — a 4,400mAh battery at 25W takes over 80 minutes to charge fully. At 45W, a 5,000mAh battery charges in approximately 65 minutes. That's a meaningful real-world improvement for daily users.

The Wide vs Ultra Positioning

The naming clarity that emerged last week is worth restating here. What was previously called the "Galaxy Z Fold 8 Wide" is now expected to simply be called the Galaxy Z Fold 8 — a wider, passport-proportioned book-style foldable at 201g with a 4:3 inner display. The direct Z Fold 7 successor takes the Galaxy Z Fold 8 Ultra name. The Ultra carries the taller, narrower form factor Samsung has used for years.

The wider model gets a 4,800mAh battery and 45W charging. The Ultra gets 5,000mAh and 45W. Both are genuine upgrades — and both will be on stage in London on July 22.

The Honest Assessment

Ice Universe put it plainly: the Fold 8 Ultra is the Z Fold 7 with a larger battery, faster charging, a new chip, and a fractionally thinner body. That's not a criticism — it's an accurate description of what the product is. If you own a Z Fold 6 or older, the combined battery and charging upgrade makes a strong case for upgrading. If you own a Z Fold 7, the decision is whether 600mAh and 20 additional watts of charging justify the cost.