iOS 28 Supported Devices: Will Your iPhone Make the Cut?

The expected iOS 28 device list

Apple announces compatibility at the keynote and never expands it afterward — so the question every year is only ever which models fall off the bottom. Based on Apple's support cadence, here's where every iPhone stands for iOS 28:

The bubble: iPhone 12 and iPhone 13

Every year one or two generations sit on the cut line, and for iOS 28 that's the A14 and A15 phones.

iPhone 13 series — probably in

The A15 Bionic is one of the most widely deployed chips Apple has ever made: it powers the iPhone 13 lineup, the SE 3rd gen, and the iPhone 14 and 14 Plus. Dropping the A15 would cut five popular models at once, which is exactly the kind of cliff Apple avoids. That shared silicon is the iPhone 13's best insurance policy for iOS 28.

iPhone 12 series — genuinely uncertain

By September 2027 the iPhone 12 turns seven — the outer edge of Apple's software support window. The A14 is still capable, but it's the oldest chip in the lineup once the iPhone 11 exits, and 4 GB of RAM is increasingly tight for a system that keeps growing AI workloads. Our call: slightly more likely dropped than kept. If you own one and were considering an upgrade anyway, don't let iOS 28 be the only reason — but know it may be your phone's last major version either way, since dropped devices still receive security updates for years.

How Apple has drawn the line before

The projection above follows directly from this table — Apple supports iPhones for six to seven years, trimming from the bottom in most cycles:

What actually decides whether a device is dropped

Apple's cutoff decisions look arbitrary from the outside, but the same handful of factors show up every year. Understanding them is the difference between guessing and actually predicting the iOS 28 list.

RAM, not raw chip speed

The biggest myth around iOS compatibility is that it's about processor speed. It isn't. A phone can have plenty of clock speed left and still get cut, because what actually breaks down on old hardware is memory. Background app retention — how many apps iOS can keep alive in RAM without reloading them — the camera pipeline's live processing buffers, and increasingly the small on-device models behind features like Visual Intelligence and on-device Siri parsing, are all memory-bound rather than CPU-bound. A phone with 4 GB of RAM can run at the same clock speed as one with 8 GB and still choke on those workloads, because there's no headroom left once the OS and open apps claim their share.

That's why the RAM column in the table below carries more predictive weight than the chip name alone. It's well-documented, teardown-confirmed information, and it lines up closely with where Apple has historically drawn its cutoff lines.

Neural Engine generation

Every A-series and M-series chip ships with a Neural Engine, but not all Neural Engines are equal. Apple Intelligence's on-device models need a specific generation of Neural Engine to run their transformer-style workloads efficiently, which is part of why that requirement lands at iPhone 15 Pro rather than an older chip that's still perfectly capable of running iOS itself. Expect this factor to matter even more for iOS 28 as Apple pushes further into on-device processing.

The age of the oldest supported device

As the history table above shows, Apple's practical support window has settled at roughly six to seven years. That's not a rule Apple has ever published — it's a pattern that emerges from looking back at several cycles of cutoff dates. It isn't rigid either: Apple has both under- and over-shot that window before, largely depending on how many models share a given chip.

Apple supports chip families, not phone models

This last point explains most of the "surprising" support decisions. Apple doesn't decide "keep the iPhone 13, drop the iPhone SE" — it decides whether the A15 Bionic, as a family, stays in or out. The A15 powers five separate products at once: the iPhone 13, 13 mini, 13 Pro, and 13 Pro Max, the iPhone SE 3rd generation, and the iPhone 14 and 14 Plus. Cutting the A15 doesn't quietly remove one line from next year's device list — it removes five, spanning three different launch years, in a single move. That's a much bigger support-cost and PR decision than trimming one aging model on its own, which is exactly why the A15 generation is expensive for Apple to cut, and why the iPhone 13's odds look better than its age alone would suggest.

The second line: Apple Intelligence requirements

Since 2024 there have effectively been two compatibility lists each year: phones that run iOS, and phones that run its AI features. Apple Intelligence has required iPhone 15 Pro or newer — a line drawn by RAM (8 GB) and Neural Engine performance, not marketing.

Expect iOS 28 to inherit that split. The base OS, redesign, and quality-of-life features should reach every supported device, while the flagship AI capabilities — especially the next-generation Siri — run on iPhone 15 Pro and later, and the heaviest on-device models may prefer even newer hardware. If AI features are the reason you're upgrading, treat "supports iOS 28" and "supports all of iOS 28" as different questions.

What about iPad?

iPadOS 28 is announced at the same WWDC 2027 keynote, follows the same beta calendar, and even ships under the same build number as iOS — but it gets its own device list, and the two lists are never identical. iPadOS has consistently supported older hardware for longer, because iPads have generally shipped with more RAM than the iPhone of the same year.

That makes the iPad question different enough to deserve its own treatment: which models are expected to make the cut, why iPad cutoffs diverge from iPhone ones, where Apple Intelligence lands on iPad, and what iPadOS gets that iOS does not.

What happens to your iPhone if it doesn't get iOS 28

If your phone lands outside the iOS 28 list, the honest answer is: not much, at least not right away. Here's exactly what does and doesn't change.

Your phone keeps working

Nothing about the hardware changes the moment Apple stops shipping new iOS versions to it. Calls, texts, the camera, the App Store, Wi-Fi, and cellular all keep working exactly as they did the day before. An unsupported iPhone doesn't degrade or get remotely disabled — it just stops receiving new OS versions.

Security updates continue — for years

Apple has a strong track record of shipping standalone security patches to older iOS versions long after they stop receiving new features. Several past major versions have continued getting security-only updates for multiple years after their successor launched. Expect the same treatment for whichever iOS version your phone ends up frozen on.

Apps keep working, mostly

Most apps stay fully functional for a long stretch after you stop getting OS updates. Eventually, though, some developers raise an app's minimum supported iOS version to take advantage of newer APIs — and at that point you'll stop receiving updates for that specific app on your specific phone, while the last compatible version keeps running. This tends to happen gradually and unevenly across your app library, not all at once.

What you actually lose

It's new features, not function. No new system-wide redesign elements, no new Siri capabilities, no new privacy controls, no new widgets or Control Center tiles that ship specifically with iOS 28. If a headline iOS 28 feature is something you specifically want, that's the real reason to consider upgrading — not fear of losing compatibility.

When replacing is genuinely worth it

Skip the panic upgrade. Replace when your battery health has dropped enough to actually affect your day, when storage is a constant fight, when an app you rely on for work has genuinely stopped updating for your iOS version, or when you want a feature — like Apple Intelligence — that's hardware-gated rather than a simple software update. Otherwise, an iPhone that "only" misses iOS 28 is still a fully capable phone. Run your exact model through our compatibility checker before deciding either way.

Apple Watch, Mac and Apple TV in the same cycle

iOS 28 doesn't launch alone. watchOS 28, macOS 28, tvOS 28, and visionOS 28 are all announced at the same WWDC 2027 keynote and move through the same beta calendar — developer beta the same day, public beta in July, final release in September — even though each runs on completely different hardware with its own separate compatibility list.

You'll notice the version numbers now line up. watchOS 28 pairs with iOS 28, macOS 28 pairs with both, and so on down the lineup. That's not a coincidence — Apple moved every platform to a shared, year-based numbering scheme, which is why the sequence skipped from iOS 18 straight to iOS 26 instead of continuing on to iOS 19. The naming now tracks the year the software ships in rather than a running count, so all of Apple's operating systems carry the same number within a given release cycle. It's purely cosmetic: it doesn't mean an Apple Watch and a Mac support the same age of hardware, only that they ship the same season, under the same year-labeled name.

How to check your model in 10 seconds

1. Open Settings → General → About.
2. Read the Model Name row.
3. Find it in the table above. If you're in the green, you can plan on the iOS 28 beta next June; on the bubble, check back — this page updates as reporting firms up.