Apple came this close to giving the iPhone 18 Pro and the brand-new iPhone Duo a proper memory upgrade. Instead, both phones are shipping with 12GB of RAM, and the story behind that decision is a little more complicated than Apple just playing it safe. According to AndroidHeadlines, tech tipster Instant Digital on Weibo claims Apple originally designed both devices around 16GB of RAM before quietly walking that back during the planning phase.
The culprit is the global DRAM market, which is a mess right now. Prices have spiked hard, and supply bottlenecks are squeezing every major chipmaker and device manufacturer at once. Apple’s bill of materials for the Duo was already running high, and Bloomberg’s Mark Gurman reported that rising memory costs triggered internal conversations about bumping the foldable’s starting price even higher than it already is. So rather than eat the cost or pass it to consumers, Apple cut the RAM spec.
Analyst Ming-Chi Kuo also flagged that industry-wide DRAM shortages were forcing Apple to trim its overall 2026 hardware shipment targets. South Korea’s The Bell reported that Samsung is supplying 12GB LPDDR modules for the Duo specifically, which means the foldable isn’t getting any memory advantage over the standard Pro lineup. For a phone that’s expected to cost significantly more than a Pro Max, that’s a hard pill to swallow.
But memory isn’t the only problem. Assembly yields for the iPhone Duo at Foxconn were sitting around 60% as of late September. That’s low. Apple’s quality thresholds are strict, and getting production lines to a healthy pass rate could take another six to twelve months according to recent reports. Foxconn engineers have been constantly recalibrating equipment, and both Samsung Display’s foldable OLED panels and 3D-printed titanium hinge components hit delays and last-minute design changes before mass production kicked off.
The practical impact of those yield issues is significant. Apple is reportedly targeting just 6 to 8 million units of the iPhone Duo globally for 2026. Compare that to the 20 to 30 million units a standard Pro model ships in a typical cycle, and you get a sense of how constrained this launch is. Counterpoint analyst Ivan Lam put it plainly: early availability depends entirely on how fast contract manufacturers can get their lines running cleanly.
Pre-orders open October 16, with the official launch date set for October 23. If you’re planning to grab a Duo on day one, expect inventory to move fast and shipping estimates to slip quickly. This isn’t a phone you’ll be casually walking into a store to buy for a while.
The 16GB situation stings more when you think about where mobile AI is heading. Local on-device processing is getting heavier with every software update, and Apple Intelligence is only going to demand more from the hardware underneath it. Capping a flagship foldable at 12GB right now feels short-sighted, even if the market forced the decision. Apple clearly had the right idea. It just couldn’t pull it off this cycle.
- Original RAM target: 16GB for iPhone 18 Pro and iPhone Duo
- Final RAM spec: 12GB LPDDR, supplied by Samsung for the Duo
- Foxconn assembly yield for the Duo: approximately 60% as of late September
- Projected 2026 Duo shipments: 6 to 8 million units globally
- Pre-order date: October 16 | Launch date: October 23
Apple will sell every Duo unit it can make this year. That’s not in question. But the combination of a memory downgrade and a constrained supply chain means a lot of early buyers are going to be waiting longer than they’d like for a phone that already had to compromise on specs before it even launched.