Apple’s long-rumored iPhone Ultra is shaping up to be one of the most watched device launches in the foldable phone space, largely because it’s expected to tackle the biggest complaint about foldables: the crease. Competing foldables have made big strides, but real-world use often reveals an uncomfortable truth—the crease can become more noticeable over time. Apple appears determined to avoid that outcome, and new industry reporting suggests the company has a very specific plan to get there.
A recent supply-chain-focused report points to Apple aiming for a foldable iPhone that looks and feels nearly “creaseless,” and the key may come down to materials science as much as industrial design. The crease problem typically starts with tiny misalignments in the display’s neutral layers. With repeated folding, stress concentrates along the bend, leading to micro-cracks and gradual, permanent deformation. That’s the long-term wear that many foldable owners eventually notice.
Apple’s approach reportedly combines several tactics to reduce that stress at the source. One major idea involves Ultra-Thin Glass (UTG) engineered with variable thickness—thinner around the fold and thicker elsewhere. By reducing thickness where bending occurs, the display can flex with less resistance, lowering the chance that stress builds up into a visible line.
But the more interesting detail is what’s said to be happening between those layers. Apple is believed to be leaning on a specialized Optically Clear Adhesive (OCA) to stabilize the neutral layer and help manage stress in the folding zone. This adhesive is described as viscoelastic: it can remain slightly malleable during slow bending to ease tension, yet harden quickly when sudden force is applied. It may also help fill microscopic cracks before they propagate, slowing the gradual worsening that can make a crease more prominent over months of use.
Even with advanced glass and adhesives, the hinge still matters most. The hinge determines how the display folds, how pressure is distributed, and whether the fold radius stays consistent over time. Reports indicate Apple has brought in Amphenol to develop the hinge mechanism, but hinge stabilization remains the biggest swing factor—significant enough that it could affect the device’s launch timing if the design doesn’t meet Apple’s durability targets.
On the panel side, Samsung Display is expected to produce roughly 8–9 million foldable OLED panels for Apple by the end of 2026, implying Apple could be targeting around 7–8 million iPhone Ultra sales during that window. For protective layers, Apple is reportedly sourcing UTG cover window materials from Lens Technology in China and UTI in South Korea.
Beyond adhesives and glass thickness, Apple may take an additional structural route by effectively “sandwiching” the main display layer between a dual layer of UTG and Ultra-Thin Flexible Glass (UFG). The goal is to reduce mechanical wear from repeated contact with hinge components and distribute bending stress more evenly. One report claims Apple is aiming for a crease depth as small as 0.15mm—thin enough that many users may barely notice it in daily lighting.
Apple is also said to be planning a thinner, more power-efficient display stack using a Color Filter on Encapsulation (CoE) process. In simple terms, CoE replaces a traditional thicker circular polarizer layer with a thinner color filter deposited directly in the display structure. Combined with a black pixel definition layer (PDL), this can improve light transmittance and cut power consumption. For a foldable, thinner layers don’t just help the device feel sleeker—they also reduce stress during folding, which can improve longevity and allow for a tighter, more durable folding radius.
Pricing is still the big question, but one report suggests Apple could target a base price near $2,000. If accurate, that would be lower than earlier rumors that placed the first foldable iPhone closer to the $2,300–$2,400 range.
Software may be just as important as the hardware. The foldable iPhone is expected to feature iPad-like layouts and side-by-side apps designed for multitasking. At the same time, the multitasking experience is rumored to stay simpler than some of the more desktop-style interface changes seen in recent tablet software. The internal display is expected to be iPad-sized with a wider aspect ratio, while the outer screen may resemble a smaller iPhone display—consistent with earlier talk of a wider, passport-like form factor.
On the design front, the outer display is rumored to use a small hole-punch cutout while still supporting the Dynamic Island-style interface for notifications and system alerts. For biometrics, Apple is reportedly dropping Face ID on this model and shifting to Touch ID integrated into the side button—an approach that also frees up internal space and may simplify the front display design.
Camera choices appear to be guided by practicality. Apple is said to be testing an under-display camera for the inner screen, but current results reportedly aren’t meeting quality expectations, making it less likely to appear in final production units. Instead, the device may stick with a more conventional solution while offering strong rear cameras, with some reports pointing to a dual 48MP rear camera setup. A selfie camera resolution of up to 24MP is also mentioned.
Other rumored iPhone Ultra specifications and features include a dedicated vapor chamber for cooling, a 2,713 x 1,920 resolution internal display with a 4:3 aspect ratio, the A20 Pro chip paired with 12GB of RAM, an in-house C2 5G modem, and a larger battery in the 5,400–5,800mAh range. The device is also expected to launch as an eSIM-only model in at least some markets.
If these reports hold up, Apple’s foldable strategy is clear: reduce crease visibility not with one breakthrough, but with a layered solution—engineered UTG, stress-managing adhesive, a complex hinge assembly, and a thinner, more efficient OLED stack. The hinge remains the make-or-break component, but the overall direction suggests Apple is aiming to enter the foldable market with fewer compromises than the current generation of foldable phones.
