Apple iPhone Air / Samsung Galaxy S24 (SM-S921B)

Because the corners are rounded, the visible area is slightly smaller than the rectangular measurement.

The adaptive refresh rate drops to 1 Hz on static content to save power; Vision Booster adjusts tone and contrast in bright light.

The panel varies its rate with the content, keeping scrolling smooth and lowering the rate for still images and Always-On to save power.

3000 nits is a short-term peak reached in strong sunlight, not a sustained full-screen brightness.

GSMArena reports the frame is grade 5 titanium.

The A19 Pro in the iPhone 17 Pro models uses a 6-core GPU; the Air's version has 5 GPU cores.

Apple says a standard setup uses about 12–24 GB for iOS and deletable apps, and Apple Intelligence models about 7 GB. GSMArena reports 12 GB of RAM in all versions; Apple does not publish RAM size.

There is a single rear camera; the 2x view uses the centre of the 48 MP sensor rather than a separate telephoto lens. There is no ultrawide or macro camera.

Center Stage automatically widens and shifts the frame, allowing landscape-style framing while holding the phone upright.

With the separately sold iPhone Air MagSafe Battery, video playback rises to 40 hours. Apple does not give capacity in mAh; GSMArena reports 3149 mAh.

No adapter is included; the box has a 1 m USB-C cable.

MagSafe needs a 30 W or higher adapter for 20 W.

The USB 2 speed slows wired transfers of large video files to a computer.

Wi-Fi 7 availability varies by country; Thread connects to compatible smart-home devices.

mmWave 5G support is not listed.

Physical SIM cards cannot be used; eSIM needs carrier support.

Satellite features work only in supported countries; some require a carrier plan.

Tested under lab conditions; resistance is not permanent and liquid damage is not covered by warranty.

Camera Control adjusts exposure, depth, zoom and styles with a slide.

The thickness is for the body and excludes the camera plateau.

According to GSMArena's review, the phone went on sale in September 2025 with iOS 26.

Samsung notes that the processor varies by market; the US SM-S921U does not use the same chip as this global model.

The series also has 256 and 512 GB and 12 GB RAM configurations; there is no microSD slot.

3x optical zoom uses the separate telephoto lens; the 2x option crops the main sensor at optical quality, and digital zoom reaches 30x.

Wireless PowerShare lets the back of the phone wirelessly charge small devices such as a watch or earbud case. No adapter is included.

The 2000-cycle figure comes from the EU label, which targets the battery keeping a set share of its capacity over that span.

The 6 GHz band needs a Wi-Fi 6E router.

Samsung’s UK page lists security updates for this model until 31 January 2031; timing can vary by market.