iPhone 18 rumor points to 12GB RAM and a $799 price

A new supply chain rumor from Taiwan says Apple plans to give the base iPhone 18 12GB of RAM, up from 8GB in the iPhone 17, while keeping the U.S. launch price at $799.

The memory upgrade matters because Apple has tied more Siri work to on-device AI. The rumor says iOS 27 will bring a more expressive Siri voice system, voice personalization controls, and stronger system dictation. Those features need 12GB of RAM, according to the report, which would leave the iPhone 17 without the full Siri package despite its current-generation status.

Apple has pushed more AI work into the device through Apple Intelligence. That approach can protect privacy, reduce server dependence, and cut response time. It also raises the hardware floor. A phone with less memory can still run cloud-backed AI features, but Apple can limit richer local models to devices with more RAM.

That creates a sharper split inside the iPhone lineup. The iPhone 17 has 8GB of RAM, which matched Apple’s AI needs at launch. If Apple ships key Siri changes in iOS 27 with a 12GB requirement, buyers who chose the base iPhone 17 will face a short support gap for marquee AI features.

The rumored price may matter as much as the RAM. Memory prices have climbed because AI servers consume large amounts of DRAM. Phone makers then face higher component costs at the same time they need more memory for local AI. The new report says Apple plans to absorb the extra RAM cost and keep the base iPhone 18 at $799 in the U.S., the same starting price as the iPhone 17.

That move would put pressure on Android rivals. Many premium Android phones already ship with 12GB of RAM or more, but higher memory costs can push retail prices up. Apple can use its scale, supplier leverage, and tight hardware planning to hold the line on price, if the rumor proves accurate.

The launch timing also looks different from Apple’s old iPhone rhythm. The report says Apple will launch the base iPhone 18 in spring 2027 with the iPhone 18e and perhaps the iPhone Air 2. Apple would then use September 2026 for the iPhone 18 Pro, iPhone 18 Pro Max, and iPhone Ultra.

That split would give Apple two iPhone cycles in one year. The Pro phones would carry the fall keynote, while the standard model would arrive months later with a lower price and enough memory for the new Siri stack. Buyers who want the cheapest path to Apple’s next AI features may have to wait until spring.

The ecosystem angle cuts both ways. Apple can make Siri more useful when it controls the chip, memory, operating system, and app hooks. The same control lets Apple draw hard lines between models. If iOS 27 requires 12GB for its best voice and dictation features, Apple will give iPhone 18 buyers a stronger reason to stay inside the iPhone upgrade path.

For users, the practical question comes down to timing. An iPhone 17 still offers modern iOS support, but the rumored iPhone 18 would carry a clearer AI runway. Anyone who cares about Siri, dictation, and on-device AI should watch the 12GB figure more than camera rumors or color leaks.

Apple has not announced the iPhone 18, iOS 27, or these Siri features. The report fits earlier RAM rumors from October 2025 and April 2026, but Apple can still change hardware plans before launch.