The iPhone is one of the most popular and influential smartphones in the world today. But do you know when was the first iPhone released? It was on June 29, 2007, when Apple launched its revolutionary device that combined a phone, a music player, and an internet browser in one sleek touchscreen gadget. The first iPhone had a 3.5-inch display, a 2-megapixel camera, and 4 GB or 8 GB of storage. It also introduced features like visual voicemail, multi-touch gestures, and the App Store.The first iPhone sold over 6 million units before it was discontinued in July 2008.