Apple iPhone Air Review: Gorgeous, But Full of Compromises

There is a new iPhone this year, and it has never been this thin. Priced from £999 in the UK, the Apple iPhone Air is the most striking design departure Apple has made to the iPhone in years. Is it merely a technological showpiece, or a first step towards a new generation of phones? Testing and benchmarking point to a clear answer.

The iPhone Air is not an iPhone like the others, and Apple wanted it that way, unveiling it a few seconds before the rest of its smartphone line and replacing the number 17 with the word "Air" — a name that, at Apple, points to a celebrated past. It is as if the phone had stepped outside time, moving to its own tempo and dispensing with the traditional jargon of an Apple product launch. It is hard not to draw the parallel with 15 January 2008, when Steve Jobs pulled the first MacBook Air out of an envelope in a keynote that went down in history. The early reactions to the iPhone Air echo the write-ups of that era: "sublime design, technical limits." But is the latest from Cupertino really so simple to sum up?

With the rumours in the hours before launch predicting a mountain of technical compromises, the official reveal caused a small sensation. The thinnest iPhone was widely expected to cut corners everywhere; instead it arrived with Apple's very best components. It does not settle for just any processor but for the best Cupertino makes: the A19 Pro. The screen is just as fine, a 6.5-inch Super Retina XDR, and the Air even affords itself the luxury of debuting an in-house C1X modem for better cellular connection. It does a great deal to earn its slimness without sacrificing everything on the altar of thinness. But does it justify its £999 asking price?

Apple is sometimes accused of reproducing the same phone year after year with only minor changes. The iPhone Air is Cupertino's engineers' answer to that much-criticised incremental approach. This ultra-thin phone puts design at the heart of its purpose, making it its reason for being and a manifesto of what Apple can do in engineering and style. It is not the thinnest phone in the world, but that is not the point. It is probably one of the best-designed.

Before even discussing the engineering, the excellent build quality — the famous "look and feel" — deserves praise. More than its 5.6mm thinness, it is the weight that astonishes when you first pick it up: 165 grams, barely 30 less than the 199 grams of the iPhone 16 Pro. On paper that gap is small, but in the hand it feels enormous and gives the Air immediate appeal. The seduction continues when you slip it into a pocket, where its extreme thinness and light weight make it almost imperceptible — no small comfort for anyone used to a phone pressed against their thigh all day.

Above all, it is in the hand that the design is most convincing. Its proportions, its curved polished-titanium edges, its screen, the almost silky lines of its camera block, the millimetric precision of the whole — this is a phone that turns heads. The comparison with the Samsung Galaxy S25 Edge is cruel for the Korean handset: barely thicker at 5.8mm, the Edge almost gives the impression of a crude mock-up beside it. On this point, Apple proves once again that its quality standards are the highest in the industry.

Since the durability of the iPhone Air has been the favourite subject of Apple-watchers since launch, we will leave the bending videos to them. If you have opened a video site even once in recent weeks you will not have missed them: the Air looks robust, it flexes a little but does not break, so we can move on.

There is a great deal to say about the internal design. Apple hinted at it during the announcement, and a thorough teardown confirmed it: inside too, this iPhone resembles no other. For an ultra-thin phone, Apple's engineers chose a very particular internal layout in which the battery occupies almost the entire surface of the device. The rest of the components sit in the camera module, to the right of the sensor, so the motherboard and processors end up beneath the camera "shelf" — an arrangement which, incidentally, makes the phone more repairable than a more traditional iPhone. It is a genuinely novel piece of engineering, and one Apple plainly regards as a proof of concept as much as a product.

What becomes of that thinness once you add a case? Wrapped in a protective layer, the iPhone Air loses its main quality, and most people do fit a case, which here rather spoils the phone's distinctive feel in the hand. That raises a question: what is the point of an ultra-thin phone if you cannot enjoy its thinness? You could go caseless, of course, but at more than £999 that is a boldness we would strongly advise against.

The screen is traditionally one of the iPhone's strong points, except when Apple insists on choices that defy reason, such as the 60Hz panel on the iPhone 16. The Air's display is quite simply a model of its kind, one of the brightest and best-calibrated on the market, and testing paid particular attention to it. The 6.5-inch Super Retina XDR panel (2,736 x 1,260 and 460ppi) follows in the line of previous generations with near-perfect calibration. With a delta E of 1 on greys and a colour temperature of 6,340K, very close to the 6,500K reference, the first results are excellent and confirm the visual impression.

It is by digging deeper that the panel's achievement becomes clear. The display covers 99% of the sRGB space and shows a P3 colour delta E of 2.79 as well as an excellent sRGB delta E of just 0.7. Usually the phones the review measures excel in one or the other, but very rarely in both at once, so on this front the iPhone Air's screen is an exception. It does not settle for near-perfect colour fidelity either: it also has top-tier brightness (2,937 cd/m²), an equally high HDR peak (1,547 cd/m²) and a 1-120Hz refresh rate, Apple's ProMotion.

It is in regular use that you truly appreciate the thinness and lightness of Apple's ultra-thin phone, but it is also in a few specific uses that some of its limits come to light. Take the single speaker: for want of room on the bottom edge, the Air makes do with one mono speaker tucked between the top of the screen and the bezel. On paper, one speaker instead of two seems an acceptable compromise, especially as the audio quality remains decent. In practice it is another matter, because in landscape the sole speaker is often blocked by the user's fingers. A minor compromise, you might say, but at £999 it is the kind of detail that makes the difference. The same goes for the microphone near the USB-C port, which a finger can cover, resulting in videos with no sound — a nuisance.

Another limit, which will concern few users, is that the Air's USB-C port — thinner, tougher, 3D-printed in titanium though it is — is limited to transfer speeds of 480Mb/s, those of the old USB 2 standard. In 2025 that choice is a mistake. Finally, it is worth remembering that the obligation to use an eSIM, while hardly complex, remains slightly irritating, particularly if you plan to switch phones later.

We will not dwell here on the iOS 26 operating system, since it is common to the whole iPhone 17 range and to a good many of their predecessors. Its personalisation options and new features run right across the line rather than being specific to the Air.

This was the launch's surprise. Long expected with the A19 processor, the iPhone Air finally opted for Apple's top-end silicon, the A19 Pro. Fitting the same processor as the iPhone 17 Pro Max but going without its cooling system inevitably leads to more heat. On this, Apple owns its choices. A vapour chamber, of the kind that lets the iPhone 17 Pro run its A19 Pro flat out? There is simply no room for one inside a 5.6mm body. An aluminium unibody frame to spread the heat? Titanium is lighter and better suits the design brief. Cupertino is betting instead that the A19 Pro's efficiency, and its thermal management more generally, will make up for those design decisions — and for the most part that bet pays off.

In practice the Air does indeed heat up, but not abnormally. In independent results it reaches a maximum of 43.1°C when pushed to its limits, with the heat concentrated at the top, near the shelf where most components sit. That peak is fairly typical for a phone under the Wild Life stress test, and the Air shows notable stability on that benchmark with a score of 96.2%, showing signs of light throttling — the processor reducing performance to avoid overheating — only after 16 minutes of punishment. For comparison, last year's iPhone 16 Pro also reaches 43.8°C under the same conditions, and a Xiaomi 15T Pro exceeds 47°C. On the rest of the performance tests the Air fares just as well and confirms the versatility of the A19 Pro; this is clearly not where its limits will show, even if you launch demanding games.

A fair share of iPhone Air buyers will have to come to terms with one idea: their last phone was probably better for photography. The reason is that the thinnest iPhone makes do with a single 48-megapixel sensor, probably the same as the iPhone 17. That Apple had to limit itself to one sensor to preserve the phone's slimness is understandable, even if Samsung found room for two; but at £999 the least it could have done was use the best version of that sensor, the one in the iPhone 17 Pro. The bigger regret is the absence of an ultra-wide (or a telephoto) and having to settle for a 26mm-equivalent wide angle. The same goes for zoom: the Air has no 2x optical zoom, instead cropping into the 48MP sensor to simulate the magnification. There is no point looking for a macro mode or any telephoto either — here you get the bare minimum.

For all that, the Air's daytime shots are perfectly decent. There is a slight lack of sharpness, notably when simulating the 2x zoom by cropping into the sensor, but for everyday photos in good light the result is generally satisfying, with pleasant, natural colour. Naturally it gets harder after dark: as soon as light is short, quality drops, particularly in the corners of the frame, which turn out less sharp and less evenly exposed than the centre. The other big weakness of this camera is portrait mode, where a single 48MP sensor struggles to produce convincing background blur, and once again the quality slides as the light fades — exactly the sort of scene where a dedicated depth or telephoto lens would have helped. Placed side by side with the Galaxy S25 Edge, which squeezes two rear cameras into a similarly thin body, the Air's single-sensor set-up looks all the more limited. To compensate for what it knew to be a weak point, Apple leaned on another: the front camera.

The iPhone Air introduces a new selfie camera, also found on the iPhone 17 range. This 18-megapixel sensor has a trick borrowed from macOS but adapted for mobile: Center Stage. In concrete terms, the square front sensor lets you change a photo's format. You can of course still take vertical (portrait) shots, but when several people are in the frame the photo can switch to horizontal (landscape), or even to ultra-wide. The camera app switches from one to the other automatically while always letting you adjust the setting yourself, notably to flip into landscape. The feature works automatically, widening the frame the moment a second face appears, yet it never takes the decision out of your hands. Practical, very clever and extremely easy to use for both photos and video, Center Stage is one of the Air's quiet highlights and helps offset the limitations of the rear camera.

A few hours after the official announcement, one figure tarnished the first impressions: 3,149. That is the battery capacity in mAh. The value is not absurd in itself, but it is markedly lower than that of today's high-end phones: 4,970mAh for the Pixel 10, 5,000mAh for the Samsung Galaxy S25 Ultra, 4,252mAh for the iPhone 17 Pro and even 5,500mAh for the Xiaomi 15T Pro. Given its thinness, the Air can hardly rival that class of phone, but even the Samsung Galaxy S25 Edge beats it on paper with a 3,900mAh cell.

On this point independent verdict is damning. The iPhone Air posts a mediocre 15 hours 38 minutes on the mixed-use battery test — one of the weakest measured in recent months, and below the score of Samsung's thinness rival, the S25 Edge, at 17 hours 21 minutes. The new in-house C1X modem, which some hoped might work magic on battery life, does no miracles. In practice the fears are confirmed. Depending on your use, the Air will see out a day, or even a little less, and it will need charging every day whatever happens. This is not a phone you can take away for a weekend and leave the charger at home; it is one you plug in each night without fail and top up during the day if you lean on it. Demanding users will have to buy a power bank, and a MagSafe battery tends to eliminate the phone's intrinsic thinness — besides being horribly expensive at around £99. For anyone who films, records or navigates heavily, that spare charge stops being optional and becomes essential.

Unfortunately the charging is no better. Here again the published figures speak for themselves: 2 hours 08 minutes for a full charge, the worst result among the latest crop of iPhones and well behind rival flagships.

The iPhone Air is a phone for a particular person: someone who values design, thinness and lightness above almost everything else, and who does not lean hard on their camera or need marathon battery life. If that is you, nothing else in Apple's range feels quite like it. If you photograph a lot, want a telephoto or regularly run your phone flat, look elsewhere: for around £260 less the standard iPhone 17 is more versatile, and for about £100 more the iPhone 17 Pro is better at nearly everything. At roughly £999 in the UK, the Air asks a premium for its looks, so buy it with your eyes open.

The iPhone Air is at once the phone of compromise and of paradox. On the first count, the specification sheet left little room for doubt: a single camera, a small battery, so photography and battery life could hardly shine. The paradox is one of this test's lessons. The Air is the thinnest, the most beautiful (perhaps), and the most ingenious (surely) of the iPhones. Yet it is probably the least recommendable of the four models available this year.

Like the MacBook Air in its day, the iPhone Air is forced into major concessions. The one on battery life can be patched over with a power bank, but there is no alternative for the camera: the buyer will always be stuck with a single 48MP sensor and no ultra-wide. The rest lives up to expectations, and even exceeds them on lightness and sheer pleasure of use. It would be easy, then, to recommend the Air to people who care nothing for photography or who do not need long battery life — but that would quickly forget that, for £100 more, there is the iPhone 17 Pro, better at everything, and for less, the standard iPhone 17, more versatile. Like the first MacBook Air, this iPhone Air cannot suit everyone. It sits among the contenders in our best flagship phones guide. What matters now is what Apple does next with it: its ultraportable namesake took a few years, and a drastic price cut that turned it into the entry point of the range and an alternative to the MacBook Pro, to become a reference. Is that the road the iPhone Air will take, or is it more simply a dry run, a first step towards the long-awaited folding iPhone?

This is an editorial buying review based on published specifications and current UK pricing.