iOS 27 and iPadOS 27: What You Need to Know About Device Compatibility
Every year, Apple's major software updates bring a wave of anticipation — and a wave of anxiety for users running older hardware. Will your iPhone or iPad make the cut? With the announcement of iOS 27 and iPadOS 27, Apple has delivered mostly welcome news for owners of older devices. Here is a thorough breakdown of which devices are supported, which are being left behind, and what these updates actually mean for your day-to-day experience.
iOS 27 Compatibility: Good News for iPhone Users
If you own an older iPhone and were bracing for disappointing news, you can breathe easy. iOS 27 does not drop support for any iPhones. Every device capable of running iOS 26 will also be able to run iOS 27, extending Apple's support streak for legacy hardware in a meaningful way.
Specifically, iOS 27 is compatible with iPhones going all the way back to the iPhone 11 and the second-generation iPhone SE. Both of these models are several years old at this point, which makes Apple's continued support a noteworthy decision. Users who purchased these devices and have held onto them will get at least another year of Apple's latest software without needing to upgrade their hardware.
This is a strong signal from Apple that it remains committed to supporting its older iPhone lineup for as long as practically possible, a policy that benefits both consumers and the broader goal of reducing electronic waste.
iPadOS 27 Compatibility: A Few Older iPads Are Dropped
The story is slightly different on the iPad side. While the vast majority of iPad owners will still receive the iPadOS 27 update, Apple is officially cutting off support for three older models:
- iPad Air (3rd generation)
- iPad (8th generation)
- iPad mini (5th generation)
What do these three devices have in common? They all run on Apple's older A12 Bionic chip. With iPadOS 27, Apple is drawing a new minimum hardware line: supported iPads must now feature an A13 chip or newer. If your iPad falls below that threshold, it will remain on iPadOS 26 as the final supported version.
While losing software support is never welcome news, it is worth noting that Apple provided these devices with a fairly lengthy run of updates. The A12 Bionic chip was first introduced in 2018, meaning these iPads received approximately six or more years of software support — a respectable lifespan by any measure in the consumer electronics industry.
Performance Improvements for Older Devices
One of the most compelling aspects of iOS 27 for users of older iPhones is Apple's promise of genuine performance improvements, even on aging hardware. According to Apple, the update includes an updated CPU scheduler that has been ported back to older supported devices.
This CPU scheduler was reportedly already in use on newer iPhone models, offering better management of processor tasks for smoother and more efficient performance. By backporting this scheduler to older iPhones — including models as old as the iPhone 11 — Apple is giving legacy device owners a tangible reason to update beyond just security patches and bug fixes.
For users who have noticed their older iPhones feeling sluggish over time, this is a meaningful development. Improved CPU scheduling can translate into faster app launches, smoother animations, better battery management, and an overall more responsive experience without requiring any hardware changes.
Apple Intelligence: The Feature Gap Between Old and New
While the compatibility news is largely positive, there is an important caveat to keep in mind. Many of the headline features announced alongside iOS 27 require Apple Intelligence, Apple's suite of on-device artificial intelligence capabilities — and Apple Intelligence is not available on older hardware.
To access Apple Intelligence on iPhone, users need one of the following:
- iPhone 15 Pro or newer
- Any model in the iPhone 16 lineup
- iPhone Air
The key requirement is a minimum of 8GB of RAM, which older iPhones simply do not have. This means that while iPhone 11 and iPhone SE (2nd generation) users will receive iOS 27 and benefit from improvements like the updated CPU scheduler, they will not have access to Apple Intelligence features such as advanced writing tools, enhanced Siri capabilities, image generation, and other AI-driven enhancements.
On the iPad side, Apple Intelligence requires an iPad Air or iPad Pro with an M1 chip or newer. Older iPads that do support iPadOS 27 but lack an M-series chip will similarly be excluded from Apple Intelligence features.
What This Means for Your Upgrade Decision
Understanding the distinction between base iOS 27 compatibility and Apple Intelligence eligibility is essential when deciding whether to upgrade your device. If you own an iPhone 11 or iPhone SE (2nd generation), you will receive iOS 27 and some genuine performance benefits. However, if you want to experience the full feature set that Apple is marketing with iOS 27 — particularly anything tied to Apple Intelligence — you will need more modern hardware.
For iPad users, the calculus is similar. If your device runs an A13 chip or newer but does not have an M1 chip, you will get iPadOS 27 with its core improvements but without Apple Intelligence. If your device uses an A12 chip, the update will not be available at all.
Should You Update to iOS 27 or iPadOS 27?
If your device is on the supported list, updating to iOS 27 or iPadOS 27 is generally recommended. Apple's major updates include important security patches that protect your device from newly discovered vulnerabilities. Beyond security, the performance improvements introduced in iOS 27 — particularly the backported CPU scheduler — make this a more compelling update than a typical incremental release for older device owners.
As always, it is wise to back up your device before performing any major software update, whether through iCloud or via a Mac or PC. This ensures your data is safe in the unlikely event that something goes wrong during the installation process.
Final Thoughts
iOS 27 is a relatively generous update in terms of compatibility, maintaining support for iPhones as far back as the iPhone 11 and the second-generation iPhone SE. iPadOS 27 trims a small number of older A12-based iPads from its supported list but otherwise continues to support a broad range of hardware. Older device owners who do receive the update have a genuine performance improvement to look forward to, even if Apple Intelligence features remain out of reach. Whether you are on legacy hardware or the latest Apple silicon, iOS 27 and iPadOS 27 represent a meaningful step forward in Apple's software ecosystem.