The first iPhone was released on June 29, 2007. It was a revolutionary device that changed the way people communicate and interact with the world around them. The original iPhone was a GSM smartphone that featured a 3.5-inch display, a 2-megapixel camera, and a touch-sensitive screen that allowed users to control the phone with their fingers. It also had a built-in iPod music player, a mobile version of the Safari web browser, and support for email and text messaging. The iPhone was a major success, and it paved the way for the many smartphones that have followed in its wake.

Here are some key features of the first iPhone:

• 3.5-inch display: The original iPhone had a 3.5-inch display with a resolution of 320 x 480 pixels. This was a relatively small screen size compared to many smartphones at the time, but it was still larger than many other mobile phones.
• Touch-sensitive screen: The iPhone was the first smartphone to feature a touch-sensitive screen, which allowed users to interact with the device by tapping, swiping, and pinching the screen with their fingers. This was a major departure from traditional mobile phones, which typically relied on physical buttons for input.
• 2-megapixel camera: The first iPhone had a 2-megapixel camera, which was considered to be quite good at the time. It could take still photos and record video, and the camera could be accessed directly from the home screen by tapping an icon.
• Mobile version of Safari web browser: The iPhone included a mobile version of the Safari web browser, which allowed users to browse the internet on their phone. The browser supported HTML, CSS, and JavaScript, and it had features like bookmarks and tabbed browsing.
• Built-in iPod music player: The original iPhone included a built-in iPod music player, which allowed users to store and play their music on their phone. The music player had features like playlists and shuffle mode, and it could be controlled directly from the home screen.
• Email and text messaging: The first iPhone had built-in support for email and text messaging, which made it easier for users to stay connected with their friends and colleagues. The phone had a virtual keyboard that users could type on, and it also supported predictive text input, which made it easier to type quickly.