Apple’s iPhone 18 Pro, iPhone 18 Pro Max, and foldable ‘iPhone Ultra’ likely to sell out fast due to memory shortages

3D render claiming to depict Apple’s first foldable iPhone (image: Jon Prosser)
Apple and its suppliers are scrambling to secure enough DRAM (mobile memory chips) ahead of the expected September 2026 launches of the iPhone 18 series and the foldable iPhone Ultra, according to semiconductor analyst Tim Culpan’s exclusive reporting for Culpium.
With under six weeks to the anticipated debut, assemblers are rushing shipments of DRAM. Apple primarily sources from Micron, with additional s