Your old iPhone can run iOS 27, just don’t expect the cool features

Apple says everyone's invited to iOS 27. Turns out it's a VIP party.

By Rachit Agarwal Published June 8, 2026

iPhone new siri animation — Apple

Apple made a big deal about iOS 27 supporting older iPhones at WWDC 2026, and on paper, it sounds great. If your iPhone is running iOS 26, it will also run iOS 27, which means phones going all the way back to the iPhone 11 are supported. But the catch in the fine print is that most of the good stuff stays behind a velvet rope.

So what do older iPhones actually get?

You are not the fun bits. You get the UI improvements, including the option to personalize Liquid Glass with a new slider that takes it from ultra-clear to fully tinted. You also get smaller treats like custom EQ for AirPods, Safari AI tabs, faster app launches, and snappier AirDrop transfers. These features are nice to have but they are not the headline features Apple spent the keynote bragging about.

Which features need a shiny new phone?

This is where it stings. To run Apple’s most powerful on-device AI model, you need an iPhone 17 Pro or iPhone Air, an iPad with M4 and 12GB of memory, or a Mac with M3 and 12GB of memory. The base iPhone 17 doesn’t even make the cut because it only has 8GB of RAM, while Apple Intelligence now requires 12GB for the best experience.

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That means features like improved dictation accuracy and the ability to change the expressivity and pace of Siri’s voice are off-limits unless you own one of Apple’s newest, priciest devices. Everyone else gets the watered-down version that uses Apple’s cloud servers, so it runs slower than the on-device model.

You think this was bad?
Some of the new Apple Intelligence and Siri features are exclusive to iPhone 17 Pro, iPhone Air, iPad models with M4 with at least 12GB of unified memory, and Mac models with M3 with at least 12GB of unified memory.
These features are locked, for example.… https://t.co/xooCP61nWl pic.twitter.com/O2IE9ODnr3
— Digital Trends (@DigitalTrends) June 8, 2026

Also, some AI features, such as image generation, come with daily limits, since they run on Apple’s servers. If you want to expand that limit, you’ll need an iCloud+ plan, which also adds extra features to Home cameras.

It’s a clever bit of marketing. Apple gets to say iOS 27 reaches the masses, while quietly making sure the features you actually want are reserved for the people who upgrade. If you were hoping your trusty old iPhone would feel brand new this fall, I’d temper those expectations.

Rachit is a seasoned tech journalist with over ten years of experience covering the consumer technology landscape.

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