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iPhone Evolution Over Five Years: USB-C, Action Button, and Camera Control
Key points
- iPhone 15 models adopted USB-C due to EU law.
- Mute switch replaced by customizable Action Button on iPhone 15 Pro/Max.
- iPhone 16 and 17 introduced a new Camera Control button.
- Display improvements include smaller bezels and higher brightness.
Evolution of iPhone Hardware
Over the past five years, the iPhone has seen several hardware revisions beyond internal power upgrades. These changes include updates to the display, physical buttons, camera functionality, and charging port, with some features previously exclusive to Pro models now appearing on base devices.
Charging Port and Button Adjustments
Apple transitioned from its proprietary Lightning port to USB-C with the iPhone 15 series in 2023, driven by an EU law mandating USB-C for all phones sold in the region. This change addressed the Lightning port's limitation to USB 2.0 speeds.
The iPhone 15 Pro and Pro Max replaced the traditional mute switch with a customizable Action Button, which can replicate the mute function or be assigned to other tasks like activating the flashlight or camera via the Shortcuts app. The iPhone 16 and newer models have continued this transition. Additionally, the iPhone 16 and iPhone 17 lineups (excluding 'e' models) introduced a new Camera Control button for opening the camera, capturing photos, and adjusting zoom and exposure.
Display Enhancements
Display upgrades over the last five years include smaller bezels and increased peak brightness. A notable display evolution is the introduction of ProMotion technology.
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Reporting from
The iPhone has undergone several significant changes in the last five years, including the adoption of USB-C, the replacement of the mute switch with an Action Button, and the introduction of a dedicated Camera Control button. These updates reflect both regulatory pressures and Apple's ongoing hardware refinements.