An “ultra” battery capacity and charging speed


The Z Fold 8 will deliver a few key upgrades over the Z Fold 7. | Image by PhoneArena
The product weight and thickness sound pretty “ultra” as well
In line with past speculation (just like the battery capacity and charging support info above), the Galaxy Z Fold 8 Ultra is rumored to retain the 215-gram weight of its non-Ultra-branded predecessor while further reducing the unfolded thickness from 4.2 to 4.1mm.


The Z Fold 8 Ultra will undoubtedly shine with its razor-thin profile. | Image by AndroidHeadlines
Obviously, that wouldn’t be particularly remarkable… if it wasn’t for the expected cell size jump, which would normally force a manufacturer like Samsung to add to a product’s weight and profile. Clearly, some engineering magic will need to be applied to prevent that from happening here, thus justifying (at least in part) the use of a somewhat pompous new name for the company’s next book-style foldable super-flagship.
Unfortunately, it doesn’t sound like the Z Fold 8 Ultra will be changing a lot of other stuff about its predecessor, keeping among others the “general design” virtually untouched (apart from that tiny thickness reduction) and thus looking set to be best described as a “Galaxy Z Fold 7 with a significantly larger battery and faster charging.”
How will the Galaxy Z Fold 8 Ultra compare to its top rivals?
- Google Pixel 10 Pro Fold – 5,015mAh battery, 30W charging, 5.2mm unfolded thickness, 258 grams weight;
- Motorola Razr Fold – 6,000mAh battery, 80W charging, 4.7mm unfolded thickness, 243 grams weight;
- Honor Magic V6 – 6,660mAh battery, 80W charging, 4mm unfolded thickness, 219 grams weight;
- Oppo Find N6 – 6,000mAh battery, 80W charging, 4.2mm unfolded thickness, 225 grams weight;
- Vivo X Fold 5 – 6,000mAh battery, 80W charging, 4.3mm unfolded thickness, 217 grams weight;
- Apple iPhone Ultra – 5,500mAh battery, 4.7mm unfolded thickness, 255 grams weight (rumored);
- Google Pixel 11 Pro Fold – 5,050mAh battery, 30W charging, 4.8mm unfolded thickness (rumored).
In a nutshell, the 5,000mAh cell capacity and 45W charging capabilities of Samsung’s next big foldable thing are unlikely to set the market on fire or keep key competitors like the Razr Fold, Oppo Find N6, and even Apple’s long overdue first-ever iPhone Ultra at bay.


The Honor Magic V6 is one of the world’s thinnest book-style foldables… and it somehow packs a massive battery as well. | Image by PhoneArena
The 4.1mm waist and 215 grams weight could be a lot more competitive, but of course, the Z Fold 8 Ultra’s success hinges on a bunch of other crucial details as well.

