iOS 27 Compatible iPhones: Which Refurbished iPhone Should You Buy in 2026?

Apple's iOS 27 arrives on 14 September 2026, bringing another major software update to millions of existing iPhones.

That is particularly important if you are buying a refurbished iPhone.

You do not necessarily need an iPhone 18, iPhone 17 or even an iPhone 16 to run Apple's latest operating system.

Apple officially supports iOS 27 on the iPhone 11 generation and later, plus the iPhone SE 2nd generation and later.

That means refurbished models including iPhone 11, 12, 13, 14 and 15 can still run Apple's latest iPhone software.

However, there is an important catch:

Supporting iOS 27 does not automatically mean supporting every iOS 27 feature.

Apple Intelligence and Siri AI have stricter hardware requirements, so choosing the right refurbished iPhone depends on how much you care about AI, cameras, battery, 5G, storage and price.

Which iPhones Support iOS 27?

Apple's official compatibility list includes:

Source: Apple iOS 27 Compatibility.

Which iPhones Do NOT Support iOS 27?

Apple's compatibility list starts with the iPhone 11 generation and iPhone SE 2nd generation.

That means models older than this cutoff are not listed for iOS 27.

An older iPhone does not suddenly stop functioning when it misses a major software release, but buyers should consider future app compatibility, security updates and how long they intend to keep the device.

iOS 27 Compatibility vs Apple Intelligence

This is probably the most important part of this buying guide.

There are many iPhones capable of running iOS 27 that do not support Apple Intelligence.

Apple currently lists Apple Intelligence compatibility beginning with:

So an iPhone 13 or iPhone 14 can run iOS 27, but that does not turn it into an Apple Intelligence-enabled iPhone.

Likewise, the standard iPhone 15 and iPhone 15 Plus receive iOS 27 but do not meet Apple's current Apple Intelligence hardware requirements.

iOS 27 Refurbished iPhone Comparison

Not every feature in iOS 27 is available on every compatible iPhone. Feature availability can depend on hardware, region, language and other requirements.

1. iPhone 11 — The Oldest Main iPhone Generation Supporting iOS 27

The iPhone 11 has reached an interesting point in its life.

It is now the oldest mainstream iPhone generation on Apple's official iOS 27 compatibility list, yet it can still run the latest operating system.

That makes it potentially attractive for buyers wanting to spend as little as possible while remaining on Apple's current major software generation.

It still provides:

But there are meaningful compromises compared with newer models.

There is no 5G, no MagSafe, no OLED display and no Apple Intelligence support.

Best for: calls, WhatsApp, banking, email, social media, maps, streaming and straightforward everyday smartphone use at a low purchase price.

2. iPhone 12 — A Better Starting Point If You Want 5G

iPhone 12 is one of the most important jumps in this refurbished comparison.

Compared with iPhone 11, it introduces several technologies that still feel current:

The major buying consideration is storage.

Many inexpensive refurbished iPhone 12 units have 64GB, which can become restrictive if you store lots of photographs, videos, games or downloaded media.

Where possible, compare the price of a 128GB model before choosing purely on cosmetic grade.

3. iPhone 13 — Our Refurbished Value Sweet Spot

For many buyers, the iPhone 13 sits in a particularly attractive position.

It retains the important modern features introduced with iPhone 12 while adding a newer A15 Bionic processor and starting at a more useful 128GB storage capacity.

Its main limitation for buyers thinking about future AI functionality is that iPhone 13 does not support Apple Intelligence.

If you do not care about Apple Intelligence, that may not matter at all.

Read our best refurbished iPhones under £300 guide for a deeper comparison of iPhone 11, 12, 13 and 14.

4. iPhone 14 — Worth It at the Right Refurbished Price

iPhone 14 is newer than iPhone 13 and fully compatible with iOS 27.

The decision becomes less about software support and more about the actual price difference between the individual refurbished units available.

If an iPhone 14 costs only modestly more than a similarly specified iPhone 13, the newer model can make sense.

If the price gap is substantial, iPhone 13 can remain the stronger value purchase because both run iOS 27 and neither supports Apple Intelligence.

5. iPhone 15 — iOS 27 Plus USB-C

The standard iPhone 15 is an important step for buyers who want USB-C.

It supports iOS 27 and brings a more modern connectivity setup than the Lightning-equipped iPhone 14 generation.

However, standard iPhone 15 and iPhone 15 Plus models do not support Apple Intelligence.

That produces an unusual decision in the refurbished market.

6. iPhone 15 Pro — The Oldest iPhone Generation With Apple Intelligence

For buyers specifically interested in Apple's AI features, the iPhone 15 Pro generation deserves particular attention.

Apple lists both iPhone 15 Pro and iPhone 15 Pro Max as compatible with Apple Intelligence.

The standard iPhone 15 and 15 Plus are not included.

That makes the 15 Pro family potentially attractive on the refurbished market because it gives buyers access to the AI feature tier without automatically buying an iPhone 16, 17 or 18.

7. iPhone 16 — Better If You Want Longer-Term AI Capability

All iPhone 16 models on Apple's current list support iOS 27 and Apple Intelligence.

That makes this generation a much simpler recommendation for buyers who want modern Apple software features without having to distinguish between standard and Pro AI compatibility.

An iPhone 16 may cost considerably more than a refurbished iPhone 13 or 14, so the question is whether those additional capabilities matter enough to justify the difference.

8. iPhone 17 — Premium Previous-Generation Choice

Following the launch of the iPhone 18 generation, iPhone 17 becomes particularly interesting from a refurbished-value perspective.

It supports iOS 27 and Apple Intelligence while remaining only one generation behind Apple's newest conventional Pro iPhones.

For premium buyers, comparing a refurbished iPhone 17 or iPhone 17 Pro against a brand-new iPhone 18 could reveal substantial value.

Browse the iPhone 17 Series at Tech Market →

9. What About iPhone SE?

Apple's compatibility list includes the iPhone SE 2nd generation and later.

That means both the 2020 iPhone SE and 2022 iPhone SE remain relevant to buyers who prefer the compact Home-button design.

The SE 3 provides 5G and newer internal hardware, making it the more attractive long-term purchase when the price gap is sensible.

Read our iPhone SE 2020 vs iPhone SE 2022 comparison for the full breakdown.

10. What Is the Cheapest Sensible iOS 27 iPhone?

The absolute cheapest compatible device is not automatically the best purchase.

When shopping refurbished, compare the complete device rather than simply the model number.

11. Which iOS 27 iPhone Is Best for Most People?

For value-focused buyers who do not need Apple Intelligence, we still like the iPhone 13.

It combines:

For someone who mainly wants calls, messages, social media, maps, banking, streaming, photographs and everyday applications, those fundamentals matter more than having the newest model number.

12. Which Refurbished iPhone Should You Buy for Apple Intelligence?

Start your comparison at the iPhone 15 Pro or iPhone 15 Pro Max.

They are the oldest iPhones currently listed by Apple as supporting Apple Intelligence.

From there, compare against iPhone 16 and iPhone 17 according to current price and the other features you require.

13. Does iOS 27 Make an Old iPhone Faster?

A software update should not be treated as a hardware upgrade.

Installing iOS 27 does not give an iPhone 11 the processor, camera system or battery of an iPhone 17.

Compatibility simply means Apple supports that model for the operating-system release.

Actual performance also depends on your workload, available storage, battery condition and the particular applications you use.

14. Does Battery Health Matter More on an Older Refurbished iPhone?

Yes, battery condition deserves attention when comparing older devices.

Rechargeable lithium-ion batteries naturally age through charge cycles and time.

Two identical iPhone models can therefore provide different battery experiences depending on battery condition and previous usage.

Read our refurbished iPhone battery health guide before choosing an older model.

15. Storage Matters Too

Software support is only one part of choosing a refurbished phone.

A cheaper 64GB iPhone may be less useful to you than a slightly more expensive 128GB model if you keep large photo libraries, games or offline video.

Read our 64GB vs 128GB vs 256GB iPhone storage guide.

16. Which Cosmetic Grade Should You Buy?

Software support is the same regardless of cosmetic grade.

A newer-generation Good-condition phone can sometimes represent better long-term value than an older Pristine device at a similar price.

17. Should You Upgrade Just Because of iOS 27?

If your current iPhone supports iOS 27, there may be no urgent reason to replace it purely for software compatibility.

Consider upgrading when several factors begin to matter together:

Buying because your needs have changed is usually more sensible than upgrading simply because Apple has announced a new model.

18. Is iPhone 11 Still Worth Buying After iOS 27?

It can still make sense at the right refurbished price.

The biggest reason is simple: it remains on Apple's official iOS 27 compatibility list.

However, because it sits at the oldest end of the supported range, we would only choose it when keeping the purchase price low is the primary goal.

Buyers planning to keep their next phone for several years should compare the additional cost of iPhone 12, 13 or newer.

19. Is iPhone 12 Still Worth Buying After iOS 27?

Yes, particularly if you want 5G and OLED while maintaining a lower budget.

We would prioritise a 128GB model where the price difference from 64GB is reasonable.

20. Is iPhone 13 Still Worth Buying After iOS 27?

For many buyers, yes.

The combination of iOS 27 support, 5G, MagSafe, OLED, 128GB base storage and strong everyday performance keeps the iPhone 13 highly relevant in the refurbished market.

Its main long-term compromise is lack of Apple Intelligence support.

Best Refurbished iPhone for iOS 27: Final Ranking

Frequently Asked Questions

Does iPhone 11 support iOS 27?

Yes. Apple officially lists iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max as compatible with iOS 27.

Does iPhone 12 support iOS 27?

Yes. All four iPhone 12 models — iPhone 12, 12 mini, 12 Pro and 12 Pro Max — are listed as compatible.

Does iPhone 13 support iOS 27?

Yes. iPhone 13, iPhone 13 mini, iPhone 13 Pro and iPhone 13 Pro Max all support iOS 27.

Does iPhone 14 support iOS 27?

Yes. The complete iPhone 14 family is included on Apple's compatibility list.

Does iPhone 15 support iOS 27?

Yes. iPhone 15, 15 Plus, 15 Pro and 15 Pro Max all support iOS 27. However, only the Pro and Pro Max models from that generation support Apple Intelligence.

Does iPhone SE 2020 support iOS 27?

Yes. Apple's compatibility list includes iPhone SE 2nd generation and later.

Does iPhone XR support iOS 27?

No. iPhone XR is not included on Apple's official iOS 27 compatibility list.

Does iPhone XS support iOS 27?

No. iPhone XS and XS Max are not listed as compatible with iOS 27.

What is the oldest iPhone that gets iOS 27?

The iPhone 11 generation is the oldest standard iPhone family on Apple's list. The iPhone SE 2nd generation is also supported.

Does every iOS 27 iPhone get Apple Intelligence?

No. Apple Intelligence requires newer hardware. Apple's current iPhone compatibility starts with iPhone 15 Pro and Pro Max, followed by the iPhone 16 generation and later compatible models.

When is iOS 27 released in the UK?

Apple says iOS 27 will be available from 14 September 2026.

Shop Refurbished iPhones at Tech Market

You do not need the newest iPhone to run Apple's newest operating system.

Tech Market stocks refurbished iPhones across multiple generations, storage capacities and cosmetic grades, with availability changing regularly.

Browse all refurbished iPhones →

Browse iPhone 17 Series →

Compatibility information is based on Apple's published iOS 27 and Apple Intelligence requirements available on 10 September 2026. Not every iOS 27 feature is available on every compatible device. Feature availability can vary by model, hardware, region, language and software configuration.