A 75 percent “certain” 600mAh battery size increase
Those are some bold numbers put out by the generally reliable @kro_roe, although if you ask me, I’m pretty sure nobody can know anything with “75% certainty” about a device like the Galaxy Z Fold 8 with close to a year to go before an official announcement.


Could the Z Fold 8 be as thin as the Z Fold 7 with a much larger battery under the hood? Probably not. | Image Credit — PhoneArena
It also wouldn’t make a lot of sense for Samsung to bump those numbers back up to accommodate a larger juicer, so for the time being, it might be wise to retain your skepticism towards this dreamy rumored improvement.
An almost “confirmed” screen size hike and a far less certain camera upgrade
One generally easy way to boost battery capacity is of course a screen size increase, and coincidentally or not, that’s another change “kro” is predicting today with “80%” confidence.
While the social media tipster makes sure to highlight that he’s specifically talking about the inner (aka primary) display, which is apparently set for an aspect ratio “adjustment” in addition to a diagonal bump, there are no details on just how much more screen real estate the Galaxy Z Fold 8 could offer compared to this year’s Z Fold 7.


For the time being, the Z Fold 8 seems unlikely to massively upgrade the Z Fold 7’s already impressive cameras. | Image Credit — PhoneArena
The just-released Galaxy Z Fold 7, mind you, already sports a generously sized 8-inch main display, adding a not-insignificant 0.4 inches to the Z Fold 6‘s inner screen size. Somehow, I doubt Samsung will look to make another such massive jump so soon after the previous one, but I guess weirder things have happened in the foldable market segment in recent years.
Another area where I don’t think we should realistically expect any big changes in 2026 is the camera, which Samsung impressively improved on the Z Fold 7 compared to the Z Fold 6. Of course, the company could leave the monster 200MP primary rear-facing snapper unchanged and upgrade one or several of the other four imaging sensors, but even @kro_roe is not ready to vouch for this particular part of his Z Fold 8 prophecy, rating it at a modest (and weirdly specific) 42 percent confidence level.