Apple’s new iPhone Air represents the company’s boldest design statement in years, delivering the thinnest iPhone ever made at just 5.6mm thick. But for buyers considering this ultra-slim device, understanding the trade-offs is crucial. Despite packing the powerful A19 Pro chip and starting at $999, the iPhone Air makes significant compromises to achieve its svelte profile.

Camera system limitations are the biggest sacrifice

The most substantial compromise involves the camera system. While other iPhone 17 models feature multiple rear cameras, the iPhone Air sports only a single 48-megapixel “Fusion” camera. This eliminates the ultra-wide camera found on the standard iPhone 17, which offers expansive landscape shots and macro photography capabilities.

The lack of an ultra-wide lens means iPhone Air users lose the ability to capture 0.5x shots, a feature that has become standard on recent iPhones. Additionally, the Air’s telephoto capability is limited to 2x optical-quality zoom through digital cropping, compared to the iPhone 17 Pro’s dedicated telephoto lens offering up to 8x optical quality shots.

Video-recording capabilities also take a hit. The iPhone Air lacks cinematic mode, ProRes recording, and other professional video features available on Pro models. While it can record 4K Dolby Vision video, it’s capped at 60fps compared to the Pro models’ 120fps capability.

Battery-life concerns despite engineering advances

Despite Apple’s claim of “all-day battery life,” the iPhone Air’s 3,149 mAh battery delivers 27 hours of video playback, compared to 30 hours on the standard iPhone 17 and 33-39 hours on Pro models. This matches the battery performance of last year’s iPhone 16 Pro but falls short of current-generation alternatives.

Apple’s decision to create a dedicated $99 MagSafe battery pack specifically for the iPhone Air suggests the company acknowledges battery limitations. This accessory can extend usage to 40 hours of video playback but adds bulk and cost to the ultra-thin design proposition.

Performance and thermal management trade-offs

While the iPhone Air includes the flagship A19 Pro chip, it features a 5-core GPU compared to the 6-core GPU in iPhone 17 Pro models. More concerning are potential thermal management issues. The Air lacks the vapor chamber-cooling system found in Pro models, raising questions about sustained performance during intensive tasks.

Industry observers have noted Apple’s silence regarding thermal management in the iPhone Air, unlike the detailed thermal discussions for Pro models. This suggests potential throttling or overheating issues, particularly given the ultra-thin form factor that limits heat dissipation.

Physical design limitations

The pursuit of thinness forces other practical compromises. The iPhone Air is eSIM-only globally, eliminating the physical SIM card slot to maximize internal space. While this provides enhanced security, it may create complications for travelers or users in regions with limited eSIM support.

The device also features only a single speaker in the earpiece, lacking the bottom-firing speaker found on other iPhone models. This could impact audio quality for media consumption and speakerphone calls.

Who should consider the iPhone Air?

The iPhone Air targets users who prioritize aesthetics and portability over maximum functionality. At 165 grams, it’s significantly lighter than the 206-gram iPhone 17 Pro. However, buyers should carefully consider whether the visual appeal justifies the compromises in camera versatility, battery life, and potentially thermal performance.

For photography enthusiasts, content creators, or users who frequently rely on ultra-wide shots and extended zoom capabilities, the iPhone 17 or Pro models offer better value despite their added thickness. The Air’s single-camera system, while capable, represents a step backward in camera versatility that defines modern flagship smartphones.

The iPhone Air launches next Friday, Sept. 19, with pre-orders beginning this Friday, Sept. 12. Prospective buyers should weigh the device’s undeniable aesthetic appeal against these functional limitations to determine if Apple’s thinnest iPhone aligns with their priorities.

For this story, Fortune used generative AI to help with an initial draft. An editor verified the accuracy of the information before publishing.

Here are the main features you’re sacrificing if you buy Apple’s new ultra-thin iPhone Air