Key Takeaways
- The iPhone 18 and iPhone 18e are expected to ship with 9GB of RAM, an increase from the 8GB in the iPhone 17 and iPhone 17e.
- Despite the RAM increase, two key Apple Intelligence features requiring 12GB of RAM will not be available on the standard iPhone 18 models.
- The unavailable features include a more expressive Siri voice and improved speech-to-text dictation accuracy, both powered by Apple's advanced on-device AI model.
Apple has a funny way of giving with one hand and holding back with the other. According to respected supply chain analyst Ming-Chi Kuo, the iPhone 18 and iPhone 18e will ship with 9GB of RAM, a step up from the 8GB found inside the iPhone 17 and iPhone 17e. Sounds like good news, right? Not so fast. Despite the bump, two headline iPhone 18 Apple Intelligence features arriving with iOS 27 will remain out of reach for these devices, because Apple’s most advanced on-device AI model demands a minimum of 12GB of RAM.
In This Article
What Exactly Will iPhone 18 Buyers Miss?
The two iOS 27 features in question are genuinely useful ones. The first lets users customise the expressiveness and pace of Siri’s voice, making the assistant sound less like a polite robot and more like an actual conversation partner. The second promises a major boost in accuracy for speech-to-text dictation across the system. Both features run on Apple’s latest advanced on-device model, and that model simply refuses to operate on anything below 12GB of memory.
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In his post on X, Kuo explained that the lower-end 2027 iPhones powered by the A20 chip will move to a 9GB configuration using six 1.5GB memory dies, replacing the four 2GB dies used in the current A19 lineup. The goal, he says, is to keep the system running smoothly under growing AI workloads.
The Full RAM Picture Across the Lineup
Here is how the iPhone 18 series RAM specifications reportedly stack up.
- iPhone 18e with 9GB
- iPhone 18 with 9GB
- iPhone 18 Pro with 12GB
- iPhone 18 Pro Max with 12GB
- Foldable iPhone Ultra with 12GB
The second-generation iPhone Air is also expected to carry 12GB. For comparison, the entire iPhone 17 non-Pro range sits at 8GB, while the Pro models already enjoy 12GB.
Why Is Apple Being So Stingy With Memory?
Blame the global memory chip shortage. RAM and NAND storage prices have surged, forcing Apple to raise prices on more than a dozen products last month. iPhones escaped that round of hikes, but analysts warn the iPhone 18 and iPhone 18e could cost 100 to 200 dollars more than their predecessors when they arrive around March 2027. Earlier rumours had actually pegged the standard iPhone 18 for 12GB, so this 9GB figure looks very much like a cost-cutting compromise. Meanwhile, the iPhone 18 Pro launch date is expected in September this year, alongside the Pro Max and the foldable iPhone Ultra.
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Our Take
A 1GB bump feels like Apple tossing a biscuit to buyers while the Pro table enjoys the full buffet. For most people, expressive Siri voices will not make or break a purchase. But it sets a worrying precedent. As Apple Intelligence grows, the gap between standard and Pro iPhones may soon be measured in features, not just cameras. If you care about on-device AI, the message from Cupertino is loud and clear. Pay up or wait it out.
