iOS 27 may run on devices as far back as the iPhone 11, but Apple’s most advanced AI features are reserved for a much shorter list of hardware, the company revealed.
Apple‘s Craig Federighi, Senior Vice President of Software Engineering, confirmed that a subset of advanced Siri AI and Apple Intelligence features will require more powerful silicon, and therefore won’t be available on most iPhones. That means that even relatively new iPhones that do support Siri AI and Apple Intelligence, like the iPhone 16 Pro Max, won’t get the full experience when iOS 27 launches this fall.
In a WWDC presentation (as reported by Macworld and other outlets), Federighi said, “Our most powerful on-device model and the features it enables, like expressive voices and more advanced dictation, will be coming to our most capable iPhone, iPad and Mac systems.”
A slide displayed alongside these remarks stated that only a handful of phones will get the full feature set: the iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air. In addition, these advanced features will be restricted to iPad models with M4 or later (and at least 12GB of unified memory), Mac models with M3 or later (and at least 12GB of unified memory), and Apple Vision Pro with M5.
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The features we know for certain are exclusive to that hardware tier include Siri AI’s more expressive voices and the upgraded systemwide dictation, which Apple says captures speech as polished, accurately punctuated text with greater precision than before.
If you’re on an iPhone 16 or iPhone 15 Pro, you’ll still get a meaningfully upgraded Siri AI experience. That’s the rebuilt assistant, the dedicated app, Visual Intelligence, writing tools, and more. But the voice customization sliders, dictation overhaul, and other unnamed features are staying on the newer hardware for now.
If the expressive voice and dictation upgrades are important to you, the iPhone 17 lineup is where those features live.
This isn’t the only significant carveout Apple announced, either. Siri AI will launch in the fall as a public beta, but it won’t be available in the European Union or China at launch.
