MacBook Air M4 2025 Comprehensive Review: Power Meets Intelligence

Spec sheets are liars. Not malicious ones, but liars all the same. They'll tell you about teraflops and nanometres and nits of brightness, but they won't tell you whether your thighs will be cooking after an hour of video editing, or whether the fans will kick in and ruin a quiet Tuesday morning call with your manager. That's the stuff that actually matters when you're living with a laptop day in, day out. And that's exactly what I've been putting the Apple MacBook Air M4 2025 through for the past two weeks.

Apple's Air line has always been the one I recommend most often when people ask me what laptop to buy. It's not always the flashiest answer, but it's usually the right one. The M3 Air was already brilliant, so the question with the M4 version is simple: has Apple done enough to justify the upgrade, or is this one of those tick-tock releases where the improvements are real but modest? Two weeks of daily use across coffee shops, trains, a home office, and one very long flight to Edinburgh has given me a pretty clear answer.

This is the 13-inch MacBook Air M4, tested in the Midnight colourway. I've been using it as my primary machine, which means it's handled everything from writing and research to light photo editing, video calls, and the occasional bout of frustration when Safari decides it needs seventeen tabs open simultaneously. Here's what I found.

My review unit came with 16GB of unified memory, which is the sweet spot for most users. Apple has finally made 16GB the base configuration for the Air M4, which is a decision that was long overdue. The M3 Air shipped with 8GB as standard, and while Apple's memory compression is clever, 8GB was starting to feel tight for anyone running more than a handful of apps. Storage on my unit is 512GB SSD, and it's fast. Genuinely fast. Sequential reads around 3,000 MB/s and writes not far behind. You won't be waiting around for files.

There are a couple of things worth flagging on the spec side. First, the memory and storage are soldered. Nothing new for Apple, but it means you need to buy right first time. If you think you might need 24GB of RAM in two years, buy it now. Second, the M4 Air still tops out at two external displays, but only when the lid is closed for the second one. That's a frustration for anyone who wants a proper multi-monitor desktop setup with the laptop open. It's a limitation that feels increasingly arbitrary given what the chip can actually do.

In Cinebench R23, the M4 Air posts around 1,900 single-core and 12,500 multi-core in short burst tests. Sustained multi-core drops to around 9,500 after a few minutes, which is the thermal throttling kicking in without a fan to help. That's the trade-off with the fanless design, and it's a real one. For tasks that run for 10-15 minutes or longer under heavy load, you will see performance taper off. But here's the thing: most people's actual workloads don't look like Cinebench. Writing, browsing, video calls, even light video editing in Final Cut Pro? The M4 Air handles all of it without breaking a sweat, and without throttling.

Video export is where I really noticed the M4 upgrade. Exporting a 10-minute 4K timeline in Final Cut Pro took just under three minutes on my unit. The M3 Air I tested last year took closer to four and a half. That's a meaningful real-world difference, not just a benchmark number. And for photographers using Lightroom Classic, the AI masking tools that used to feel slightly sluggish now respond almost instantly. The improved neural engine is doing real work there. Gaming is possible but limited. Apple Arcade titles run brilliantly, and some AAA ports like Resident Evil Village look great at medium settings. But the Air isn't a gaming machine, and anyone buying it primarily for games should look elsewhere.

For the price tier this sits in, the performance is genuinely class-leading for productivity and creative work. Windows laptops at a similar price point with Intel or AMD silicon can match it on raw multi-core numbers when they have cooling headroom, but they can't match the efficiency or the battery life that comes with it. The M4 Air is fast in the ways that matter for the people who'll actually buy it.

Brightness is rated at 500 nits, and in practice that's enough for most indoor environments. Near a window on a bright April day, I had it at full brightness and could see everything clearly. Outside in direct sunlight? It's manageable but not ideal. You'll find yourself angling the screen or hunting for shade. Some Windows rivals at this price now offer 600-800 nit panels, and you do notice the difference outdoors. It's not a dealbreaker, but it's worth knowing. The anti-reflective coating helps somewhat, but the Air isn't the laptop I'd choose for a lot of outdoor working.

Viewing angles are excellent, as you'd expect from an IPS panel. Colours stay accurate well off-axis, which matters when you're showing something to a colleague sitting next to you. The 60Hz refresh rate is the one thing that feels a bit behind the times. Scrolling is smooth enough, but if you've been using a 120Hz display on your phone or a Windows laptop, you'll notice the difference. Apple reserves ProMotion for the MacBook Pro line, and that's a deliberate product segmentation decision that I find mildly annoying. The display is still very good. It just could be better.

Video playback is where the battery really shines. Streaming a film on Apple TV+ at medium brightness, I measured just over 16 hours before the battery gave up. That's close to Apple's claim, and it's the best I've seen from any 13-inch laptop I've tested. The M4's efficiency cores do a brilliant job of handling low-demand tasks without spinning up the big performance cores unnecessarily, and you can feel that in the battery stats.

Under sustained heavy load, things come down to earth a bit. Running Cinebench on a loop or doing a long video export, I saw battery drain of around 15-18% per hour. Still decent, but not magical. Charging is handled via MagSafe 3, which ships with a 30W USB-C adapter in the box. That's fine for overnight charging but a bit slow if you need a quick top-up. From flat to 50% takes about 45 minutes with the included charger. You can charge faster with a 67W or 96W USB-C adapter (sold separately, naturally), which gets you to 50% in around 30 minutes. The MagSafe connector is genuinely lovely to use, by the way. The magnetic snap is satisfying every single time.

USB-C charging works on both Thunderbolt ports, which is handy. I spent a few days charging exclusively from a USB-C power bank and a third-party GaN charger without any issues. That flexibility is something I really appreciate when travelling. One minor gripe: the 30W charger that ships in the box feels underpowered for a laptop that can clearly handle more. It's the kind of cost-cutting that feels a bit mean at this price point.

The 11.3mm thickness is equally impressive. It slides into the sleeve of almost any bag without fuss, and the tapered wedge design means it doesn't feel as chunky as the measurements suggest. The footprint is compact enough to use on a tray table on a plane (I tested this specifically on the Edinburgh flight), which not every 13-inch laptop manages. The charger and cable add a bit of bulk, but the 30W brick is small enough that it doesn't feel like a burden.

Who is this for, travel-wise? Pretty much anyone who moves around regularly. Students carrying it between lectures, commuters on trains, freelancers hopping between coffee shops. The combination of weight, battery life, and size makes it one of the best travel laptops I've used. If you need a 15 or 16-inch screen for your work, you'll need to look at the MacBook Air 15 M4 or the Pro line, but for most people the 13-inch form factor is genuinely enough.

The UK layout is sensible, with a proper pound sign where it should be and a return key that doesn't feel cramped. There's no number pad, which is standard for a 13-inch machine. The function row doubles as media controls and brightness keys, and you can toggle between the two in System Settings. Touch ID is built into the power button in the top right corner and it's fast and reliable. I unlocked the laptop hundreds of times over two weeks and it failed maybe twice. Face ID would be nice, but Touch ID is good enough that I don't miss it much.

The trackpad is, as ever, the best trackpad on any laptop. I know that's something Apple reviewers say every year, but it remains true. The Force Touch surface is huge, the haptic feedback is convincing enough that it took me a week to remember it doesn't actually click, and the gesture support in macOS is so well implemented that using a mouse feels almost unnecessary. Three-finger swipes between apps, pinch to zoom, four-finger swipe for Mission Control. It all just works, and it works better than any Windows trackpad I've used.

Push it harder and things change. During a sustained Cinebench run, the keyboard area climbed to around 38 degrees and the underside hit 42 degrees. That's warm but not uncomfortable if you're using it on a desk. On your lap during heavy work, you'll notice it. It's not painful, but it's not something you'd want for an extended session. The good news is that real-world creative tasks, even demanding ones like video export in Final Cut Pro, don't push temperatures as high as synthetic benchmarks. A 10-minute 4K export kept the keyboard at around 35 degrees, which is fine.

Throttling is the other side of the thermal coin. The M4 Air does throttle under sustained load, as I mentioned in the benchmarks section. But the throttling is managed gracefully. Performance doesn't fall off a cliff; it tapers to a sustainable level and stays there. For the kind of work most Air buyers do, you'll rarely hit the throttling threshold. And when you do, the machine keeps working. It just works a bit less quickly. That's an acceptable trade-off for a silent, thin, light laptop that lasts all day.

Compared to the M3 Air I tested previously, the M4 runs slightly warmer under load, which makes sense given the increased performance. But the difference is small, and the thermal management feels more refined. Apple has clearly tuned the power delivery to extract more performance before the chip has to pull back.

This matters more than people give it credit for. I've tested laptops this year where the fans spin up during a Teams call, which is both distracting and slightly embarrassing. The Air never does that. Video calls, Spotify, writing, light editing, all of it happens in complete silence. In a library, a quiet office, or a meeting room, the Air is the most considerate laptop you can bring. Nobody will hear it because there's nothing to hear.

The only caveat is that under very heavy sustained load, you might hear a faint electronic hiss from the coil area near the top of the keyboard. I noticed it once during a particularly aggressive Cinebench session with the room very quiet. It's not fan noise, it's coil whine, and it's very faint. In any normal environment you won't hear it. But it's there if you're looking for it, and I'd rather mention it than pretend it doesn't exist.

The Thunderbolt 4 ports are capable of driving external displays up to 6K, charging the laptop, and transferring data at up to 40Gbps. They're genuinely powerful ports, just not many of them. Wi-Fi 6E is a nice upgrade from the M3 Air's Wi-Fi 6, and in practice I noticed faster speeds on my 6GHz home network. Bluetooth 5.3 handles AirPods and peripherals without any issues. The headphone jack supports high-impedance headphones, which audiophiles will appreciate.

One thing I want to flag: both Thunderbolt ports are on the left side. If your desk setup has power coming from the right, you'll have a cable running across the front of the laptop. It's a minor thing, but it's the kind of ergonomic detail that adds up over time. The MagSafe port being separate from the Thunderbolt ports is genuinely useful though. It means you can charge via MagSafe and still have both USB-C ports free for peripherals.

• MagSafe 3 (left side)
• 2x Thunderbolt 4 / USB 4 (USB-C, left side)
• 3.5mm headphone jack (left side)
• Wi-Fi 6E (802.11ax)
• Bluetooth 5.3

The three-microphone array is excellent. I did several calls from a busy coffee shop and colleagues consistently said they could hear me clearly with minimal background noise. The beamforming and noise cancellation are doing real work. For anyone who does a lot of calls, this is one of the Air's genuine strengths. The microphones are better than most external USB microphones in the under-£50 bracket.

Speaker quality is impressive for a laptop this thin. The four-speaker system with force-cancelling woofers produces a wide soundstage and handles bass better than you'd expect from something 11mm thick. I listened to a fair amount of music through the speakers over two weeks and found them genuinely enjoyable for casual listening. They're not going to replace a decent Bluetooth speaker, but they're among the best laptop speakers available. Volume goes high enough to fill a small room without distorting.

The hinge is smooth and opens with one hand easily. It holds its position at any angle without drooping, which sounds like a basic requirement but is something cheaper laptops often get wrong. The hinge angle goes back to about 135 degrees, which is enough for most use cases but won't lie flat for drawing or touch-screen style use (there's no touchscreen on the Air, which is a separate conversation). The lid-to-body alignment is tight and even, with no gaps or misalignment that I could find.

Durability is hard to assess in two weeks without deliberately trying to break the thing, but the build quality inspires confidence. Apple's aluminium unibody construction has a track record going back years, and the M4 Air feels like it'll last. The hinge mechanism in particular feels like it's built to survive thousands of open-close cycles. I've seen MacBook Airs from 2018 still in daily use with hinges that work perfectly, which says something. The only durability concern I'd flag is the Midnight finish potentially showing wear at the edges over time, as previous dark-coloured MacBooks have done. Worth keeping an eye on.

The MagSafe connector and port openings are clean and tight. Nothing rattles. The rubber feet on the underside grip surfaces well. Even the packaging feels considered, which is either admirable attention to detail or very effective brand theatre, depending on your cynicism level. Probably both.

Against the XPS 13, the Air wins on battery life by a significant margin. Dell's Intel Core Ultra 7 chip is competitive on performance but draws considerably more power, and the XPS 13 typically manages 8-10 hours of real-world use versus the Air's 12-14. The Air also wins on thermals and acoustics, being completely silent where the XPS 13 runs its fans regularly. The XPS 13 fights back with a better port selection on some configurations and Windows compatibility for anyone locked into that ecosystem. It's a closer fight than it used to be, but the Air still wins overall for most users.

The Zenbook 14 OLED is a more interesting challenge. Its OLED panel is genuinely better than the Air's LCD for contrast and black levels, and it's a real consideration if you watch a lot of films or do colour-critical work where deep blacks matter. But the Air's battery life advantage is substantial, and the M4's performance efficiency means the Zenbook needs to work harder (and louder) to keep up on sustained tasks. The Zenbook is a brilliant laptop. But for most people, the Air's combination of performance, battery, and build quality edges it out.

Who should buy it? Students, writers, developers, photographers, anyone who works on the move and needs a machine that'll last a full day without hunting for a plug. Anyone who's been using an older MacBook Air and is wondering whether the M4 is worth upgrading to: yes, particularly if you're on an Intel model or an M1. The jump is meaningful. And anyone who's been on the fence about switching from Windows: the Air M4 is probably the most compelling argument for making that switch that Apple has ever produced. The broader laptop market is competitive right now, but the Air holds its own convincingly.

Who should skip it? Anyone who needs Windows for work or gaming. Anyone who wants an OLED display and won't compromise on that. Anyone who needs more than two USB-C ports without carrying a hub. And anyone who does sustained heavy workloads for hours at a time, because the fanless design does throttle, and a MacBook Pro with active cooling will serve you better for that kind of work. The Air is brilliant, but it's not for everyone.

With ★★★★½ (4.8) from 348 reviews on Amazon, the crowd agrees it's a winner. My editorial score is a 9 out of 10. The point it loses is for the port situation and the 60Hz display, both of which feel like deliberate product segmentation rather than genuine limitations. But those are quibbles. The MacBook Air M4 is, right now, the laptop I'd recommend to almost anyone who asked. Priced at £999.00, it's not cheap, but it earns every penny.