MacBook Air Buyers Guide: M1 to M5 Compared

Five generations of Apple silicon, two screen sizes, and a mid-year price rise to factor in. Here's everything you need to choose the right MacBook Air in 2026 — processor, memory, storage, graphics, ports and battery — whether you're buying new or refurbished.

Section 01The lineup at a glance

Since its debut in 2008 the MacBook Air has been the default laptop for students, professionals and everyday users. In 2020 Apple moved it from Intel processors to its own Apple silicon, and the machine has been on a steady annual-ish cadence since. Every current model shares the same fundamentals: a thin aluminium body, a fanless (and therefore silent) design, a Liquid Retina display and all-day battery life.

One newcomer changes the shape of the range. In 2026 Apple introduced the MacBook Neo, a £699 entry-level laptop built around the iPhone's A18 Pro chip. The Neo takes over the "cheapest possible Mac" role, the MacBook Pro remains the heavy-duty option, and the Air sits in the middle: the balanced choice for the majority of buyers.

Section 02Processor

Every Apple silicon MacBook Air is quick in daily use — the question is how much headroom you want. The M1 to M3 use an 8-core CPU; the M4 and M5 step up to 10 cores, which is where the largest generational jumps come from.

The cleanest way to compare them is Geekbench 6 (a widely used benchmark that scores a processor on the kind of work real applications do — we've explained how to read the scores here). Higher is better, and double the score means roughly double the performance.

Reading the chart: the M1 to M3 improvements were incremental, because the core count stayed the same. The M4's two extra cores produced the first big jump, and the M5 adds roughly another 15% on top — its multi-core score is about double the original M1's. Single-core performance, which governs how snappy everyday tasks feel, has climbed steadily every year.

In practice: for web browsing, email, streaming and documents, any generation is comfortable. If your work includes photo editing, light video work or large spreadsheets, the M3 onwards gives you noticeably more headroom, and the M4 and M5 the most.

Section 03Memory

Memory — RAM — is what lets your Mac keep several apps, dozens of browser tabs and background tasks running smoothly at once. Apple silicon Airs use unified memory (a single pool of RAM built into the chip and shared by the CPU and GPU — full explanation here), which is why an Apple silicon Mac feels smoother than an Intel Mac with the same amount of RAM.

The crucial point: memory is fixed at purchase. It's part of the chip package and cannot be upgraded later, so buy for the next few years, not just for today.

8GB still copes with genuinely light use — browsing, video, documents — helped by how efficiently unified memory works. But software demands only move one way, which is why Apple made 16GB the floor from the M4 onwards.

16GB is our recommendation for most buyers. It handles heavy multitasking, large files and light creative work comfortably, and it's the configuration most likely to still feel fine in five years. You can filter our range to 16GB models here.

24GB or 32GB makes sense if you routinely run professional apps, very large spreadsheets, virtual machines or local AI tools — or you simply want maximum future-proofing. Browse the higher-memory configurations here.

Not sure what you need? Open Activity Monitor on your current Mac, click the Memory tab, and watch the memory-pressure graph during a normal day. If it's regularly yellow or red, buy more RAM than you have now.

Section 04Storage

Like memory, the SSD in a MacBook Air is not upgradable after purchase, so it pays to check what you actually use. On your current Mac: Apple menu → About This Mac → More Info → Storage. If you're near the ceiling now, size up.

The M5 doubled the starting storage to 512GB and introduced a 4TB ceiling, with a faster SSD than the M4's. For most people 256GB is tight and 512GB is comfortable; go larger only if you keep big photo or video libraries locally.

If your budget won't stretch to the storage tier you'd like, there are honest workarounds: iCloud storage from a small monthly fee, or an external SSD for media libraries and backups. Both bridge the gap well — though neither is as convenient as simply having the space built in.

Section 05Graphics

The Air isn't built for heavy graphics work — that's MacBook Pro territory — but GPU performance still matters for photo editing, casual gaming and, increasingly, on-device AI. Each generation offers an 8-core or 10-core GPU, with one exception: every M5 15-inch ships with the 10-core GPU, while the 13-inch M5 offers both.

The M5 is the first Air generation where graphics is the headline. Every one of its GPU cores contains a Neural Accelerator (dedicated hardware for AI workloads, working alongside the 16-core Neural Engine), plus a third-generation ray-tracing engine for games and 3D rendering.

A fair caveat: Apple quotes up to 30% faster graphics for the M5 chip, but in the fanless Air the measured Metal gain over the M4 is closer to 16%. The bigger differences appear in ray-traced games and AI tasks, where the new hardware does work the older chips simply don't have.

Practical guidance: an 8-core GPU is fine for everyday use and streaming. A 10-core GPU earns its keep for photo editing, light video work and casual gaming. If your work is genuinely GPU-heavy, the Air is the wrong tool — look at a MacBook Pro instead.

Section 06Ports and connectivity

The Air keeps its port selection deliberately minimal — two Thunderbolt ports and a headphone jack — which is part of how it stays thin, light and affordable. What's changed across the generations is charging and wireless.

Two details worth knowing. On the M1, charging occupies one of the two Thunderbolt ports; MagSafe from the M2 onwards frees both ports for accessories. And the M5's Wi-Fi 7 only pays off if you have (or plan to get) a Wi-Fi 7 router — on an older network it performs like the models before it. If you're unsure which charger you need, our MacBook charger guide covers every model.

Section 07External display support

This is one of the quieter but most practical differences between generations, especially if you work at a desk.

If a two-monitor desk setup matters to you, the M4 or M5 is the clean answer; the M3 manages it only in clamshell mode with an external keyboard and mouse.

Section 08Battery

Battery life is the Air's quiet superpower, and it has been consistently strong across the whole Apple silicon era: Apple rates every generation at up to 15 hours of wireless web browsing and up to 18 hours of video playback. The fanless design also means the machine is completely silent while it does it.

Real-world stamina depends on workload and, on used machines, battery health. Every refurbished MacBook Air we sell has its battery tested as part of our refurbishment process, and batteries are consumable parts covered by our 1-year warranty.

Section 09Size, design and colours

The current flat design arrived with the M2 in 2022 and hasn't changed since — an M5 looks identical to an M4 and near-identical to an M2. The M1 is the visible outlier, keeping the classic wedge shape and slightly smaller 13.3-inch Retina display; the M2 onwards use a brighter 13.6-inch or 15.3-inch Liquid Retina panel.

Colour options by generation:

Choosing between sizes is simpler than it looks: the 13-inch is the better travel companion; the 15-inch is the better desk-free workstation, with more screen and better speakers for a modest weight penalty.

Section 10What the M5 changes — and what it costs

The MacBook Air M5 went on sale on 11 March 2026. It's a classic Air update: the same design, display, ports, camera and battery life as the M4, with the changes concentrated inside — a roughly 15% faster CPU, a new GPU with a Neural Accelerator in every core, faster unified memory, double the base storage at 512GB (configurable to 4TB, with a quicker SSD), and Wi-Fi 7 with Bluetooth 6.

The complication is price. The M5 launched at £1,099 (13-inch) and £1,299 (15-inch) — already £100 above the M4's launch prices. Then on 25 June 2026 Apple raised UK prices across nearly the whole Mac range, and the M5 Air rose another £200: £1,299 for the 13-inch and £1,499 for the 15-inch, with nothing changed in the hardware. We covered every increase here, and the memory-shortage economics behind it in the 2026 Mac Squeeze.

Section 11Which MacBook Air should you buy?

Pulling it together, by the way people actually use these machines:

Section 12Common questions

Is the MacBook Air M1 still worth buying in 2026?

For light use, yes. It remains supported by the current version of macOS, runs Apple Intelligence, and handles everyday tasks well. The compromises are the older wedge design, a single external display, charging occupying one of its two ports, and — on 8GB models — less multitasking headroom. At refurbished prices it's a lot of Mac for the money.

MacBook Air or MacBook Neo?

The £699 MacBook Neo is Apple's basic option: an A18 Pro chip with modest memory and storage, built for light tasks. As we noted when prices rose in June, a refurbished M2 MacBook Air at similar money gives you double the memory plus Thunderbolt, MagSafe and a backlit keyboard. The Neo suits a first laptop for very light use; the Air suits almost everyone else.

Can you upgrade the RAM or storage later?

No. Both are fixed at purchase on every Apple silicon MacBook Air — the memory is part of the chip package and the SSD is soldered. Choose configurations for the life of the machine, not just for today.

What's the difference between the M4 and M5 MacBook Air?

Same design, display, ports, camera and battery life. The M5 adds around 15% CPU performance, a faster GPU with a Neural Accelerator in each core, quicker unified memory, 512GB base storage (up to 4TB) with a faster SSD, and Wi-Fi 7 with Bluetooth 6. Worthwhile if you'll use the AI and graphics gains; otherwise the M4 remains excellent value.

Do all MacBook Air models run Apple Intelligence?

Every Apple silicon model does — M1 through M5. The M5 is meaningfully faster at on-device AI thanks to its Neural Accelerators, but no Apple silicon Air is locked out.

Section 13Save money — choose refurbished

Once you've settled on the right generation and configuration, the biggest lever left is how you buy. A refurbished MacBook Air is not the same as buying second-hand from a private seller: every device we sell is inspected, tested and professionally refurbished, with faulty components replaced, before it reaches you — and graded honestly so you know exactly what you're getting.

Three reasons it stacks up: you get a fully functional MacBook Air without the new price tag (a gap that widened again in June); every device carries a 1-year hardware warranty; and you avoid the risk of untested private sales entirely.

Questions, or want a recommendation for your specific use? Call us on 020 8819 3244 or email info@hoxtonmacs.co.uk — we're happy to help. Or explore the full refurbished MacBook Air range here.