iPhone Air vs iPhone 17

The iPhone Air and the iPhone 17 are one of the most interesting decisions in Apple's line-up, because they cost the same. At around £799 apiece you are not choosing the cheaper phone — you are choosing what you value. The Air is the radical, ultra-thin design statement; the 17 is the sensible, do-everything model. Here is how they compare, drawn from independent expert reviews of each, so you can decide which £799 iPhone is right for you.

At a glance

The iPhone Air (around £799.00) is the phone to buy if you want the thinnest, lightest iPhone ever, with a surprisingly powerful chip and a big screen — as long as you can accept a single camera and weaker battery life. The iPhone 17 (around £799.00) is the better all-rounder: a second camera, noticeably longer battery life and none of the Air's compromises, in a more conventional body. Same price, very different priorities.

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Design and weight

This is the Air's whole reason for being. It is just 5.6 mm thick and around 165 g, comfortably the slimmest and lightest iPhone Apple has made, and in the hand the difference is startling. To achieve it, Apple built the phone around its battery and packed the other components into a camera plateau, which also makes it slightly more repairable than usual. The iPhone 17 is a normal-thickness phone at roughly 8 mm, heavier and more familiar, but also more robust-feeling and less of a novelty. If turning heads with a featherweight design matters most, the Air wins outright; if you want a phone that feels solid and ordinary in the good sense, the 17 is the pick.

Screen

The two are closer here than you might expect, because Apple has finally given both models a 120 Hz ProMotion display. The Air has the larger panel at 6.5 inches and reviewers measured it as one of the brightest around, peaking near 2937 cd/m². The iPhone 17's screen is a touch smaller at 6.3 inches but every bit as good, quoted up to 3000 nits and just as smooth. Both are superb, high-refresh OLEDs; the Air simply gives you a little more screen, the 17 a fractionally more compact one.

Performance

Here is the twist: the thinner phone is the faster one on paper. The iPhone Air runs Apple's A19 Pro chip, a step above the standard A19 inside the iPhone 17. In raw terms the Air has more power on tap. The catch is heat: with so little room inside, the Air cannot dissipate heat as well during long, demanding sessions, so its advantage narrows under sustained load. The iPhone 17's standard A19 is still extremely fast and handles everything with ease, and its more conventional body keeps its cool. For everyday use both feel instant; the Air has the edge in short bursts, the 17 is the steadier performer over time.

Cameras

This is the clearest split between them. The iPhone Air makes do with a single rear camera — a 48-megapixel wide equivalent to about 26 mm — with no ultra-wide and no telephoto, so there is no optical zoom to reach for. It takes good photos in good light, but reviewers were clear that its versatility is limited.

The iPhone 17 has a proper dual system: the same high-resolution 48-megapixel main camera, which can crop in to a 2x zoom of about 50 mm, plus a genuine 48-megapixel ultra-wide for landscapes and groups. If photography matters to you at all, the 17 is the more flexible and capable tool; the Air is strictly for people who only ever use the main lens.

Battery

The Air's slimness has a cost, and battery is where it bites. Its thin body leaves room for only a modest 3149 mAh cell, and reviewers singled out stamina as the phone's real weak point. The iPhone 17, in a thicker body, fits a larger battery and Apple quotes around 30 h of video playback; it comfortably outlasts the Air in day-to-day use. If you want a phone that reliably sees out a long day without a top-up, the 17 is the safer bet by a clear margin.

Verdict: which should you buy?

Because they cost the same, this comes down purely to what you want. Buy the iPhone Air if you are captivated by the idea of the thinnest, lightest iPhone, appreciate that it carries the more powerful A19 Pro chip and a large, bright screen, and you genuinely do not mind living with a single camera and shorter battery life. It is a bold, beautiful piece of design.

Buy the iPhone 17 if you want the more sensible, complete phone for your £799: a versatile dual-camera system, distinctly better battery life and no real compromises, in exchange for a thicker, more ordinary body. For most people, the iPhone 17 is the smarter buy — the Air is the one you choose with your heart.