Apple is expected to officially announce iOS 27 during the WWDC26 keynote on June 8.
Many new AI-powered features may require newer iPhone hardware and more RAM.
Rumors suggest certain older iPhones could lose support or receive limited AI functionality.
And then, almost immediately, the yearly discussion begins again. Some users become convinced that older iPhones somehow feel slower after every major iOS release, while others insist it’s simply the reality of aging hardware and increasingly demanding software. Somewhere between battery health menus, Reddit debates and dramatic YouTube thumbnails, the truth usually becomes slightly more complicated than anyone wants it to be.
Still, iOS 27 may become one of the most important compatibility updates Apple has released in years — largely because Apple Intelligence and AI-powered features could require newer hardware than ever before.
Apple is expected to officially announce iOS 27 during the WWDC26 keynote on June 8.
Many new AI-powered features may require newer iPhone hardware and more RAM.
Rumors suggest certain older iPhones could lose support or receive limited AI functionality.
Apple has not officially confirmed compatibility yet, but current rumors suggest most recent iPhone models will continue receiving support for iOS 27.
Expected supported devices include:
Apple’s upcoming flagship lineup is expected to fully support all Apple Intelligence and Siri AI features.
The iPhone 16 series will likely become one of the main devices for advanced AI integration in iOS 27.
Most iPhone 15 models are expected to support iOS 27 and most core Apple Intelligence features.
Apple will likely continue supporting the iPhone 14 lineup with most standard iOS 27 functionality.
The iPhone 13 series may remain supported, although some advanced AI features could be limited.
At the moment, rumors suggest Apple could finally drop support for several older iPhone models with iOS 27.
Possible unsupported devices may include:
Nothing is officially confirmed yet, but Apple’s growing focus on AI and machine learning features may require newer chips and additional memory.
And honestly, this is the point every WWDC season where many users suddenly start looking at their completely functional iPhone with quiet suspicion, wondering whether Apple is gently encouraging them toward an upgrade without ever actually saying it out loud.
One of the biggest differences with iOS 27 may be Apple Intelligence.
Unlike previous iOS updates that mostly focused on visual changes and small system improvements, iOS 27 is expected to introduce deeper AI-powered functionality throughout the system.
That could include:
Many of these features reportedly rely heavily on on-device AI processing, which means newer chips and more RAM may become essential.
In other words, this may become one of the first iOS releases where software compatibility and AI capability are no longer exactly the same thing.
Every year, after a major iOS update arrives, the same debate returns almost immediately: “Did Apple slow down older iPhones again?”
Some users genuinely feel their devices become slower after updating, while others argue the effect is often exaggerated by aging batteries, background indexing and higher system demands.
The reality is probably somewhere in the middle.
Modern iOS versions simply do more than older releases ever did. AI features, real-time processing, animations and background intelligence all require significantly more resources than the simpler iOS versions from years ago.
At the same time, Apple’s ecosystem is built around longevity better than almost any other smartphone brand. Many iPhones still receive software updates for five or six years — something that remains surprisingly rare in the industry.
Still, it’s understandable why some users become skeptical every year. When a perfectly smooth iPhone suddenly starts warming up after an update and the battery begins disappearing faster than usual, people naturally start asking questions.
Apple Intelligence features may demand newer chips and additional system memory.
Older batteries often affect performance more than software updates themselves.
Modern iOS versions process far more background activity than older releases ever did.
Most iPhones continue receiving updates far longer than many competing Android devices.
Every June, users once again begin asking whether it’s finally time to upgrade.
Most likely, yes.
Even if older iPhones continue supporting iOS 27 itself, some Apple Intelligence features may remain exclusive to newer devices with more powerful processors.
This would not be unusual for Apple.
Over the years, the company has often limited advanced camera processing, visual effects and machine learning features to newer hardware generations.
And realistically, Apple Intelligence could become one of the clearest examples of this strategy so far.
Which means two iPhones running the same iOS version may still have very different experiences depending on hardware capabilities.
Apple will likely officially reveal the full iOS 27 compatibility list during the WWDC26 keynote on June 8.
The company is also expected to announce which Apple Intelligence features require newer devices.
As always, the first Developer Beta will probably arrive immediately after the keynote, followed by a Public Beta later in the summer.
Every WWDC season brings excitement about the future — new features, better AI, redesigned apps and smarter devices. But quietly, in the background, there’s always another feeling too.
Because for many users, iPhone compatibility lists are not just technical specifications. They’re reminders of how long a device has been part of daily life.
And every year, somewhere during the keynote, millions of people suddenly begin wondering whether their current iPhone is still part of Apple’s future — or slowly becoming part of its past.
Apple will likely officially announce iOS 27 during the WWDC26 keynote.
Some Apple Intelligence tools could remain exclusive to newer iPhone hardware.
Rumors suggest several older iPhone models may lose support with iOS 27.
Current rumors suggest the iPhone 13 lineup and newer models will likely support iOS 27.
Yes, rumors suggest Apple may drop support for devices like the iPhone XR and iPhone XS series.
Many AI-powered features are expected to require newer chips and more system memory.
Apple says performance management mainly protects devices with aging batteries, although the debate continues every year after major iOS updates.
Apple is expected to confirm the full iOS 27 compatibility list during WWDC26 on June 8.
