The iPhone is a line of smartphones designed, developed, and marketed by Apple Inc., first introduced in 2007 by then-CEO Steve Jobs as a revolutionary device combining a mobile phone, iPod, and internet communicator. It features a multi-touch touchscreen interface, runs on Apple's proprietary iOS operating system, and integrates seamlessly with services like the App Store, iCloud, and Siri voice assistant. Over the years, models have evolved with advancements such as high-resolution Retina displays, advanced cameras with computational photography, powerful A-series processors, and support for 5G connectivity. The iPhone has significantly influenced modern mobile technology, popularizing app ecosystems, mobile payments via Apple Pay, and augmented reality applications, while emphasizing user privacy and premium build quality using materials like aluminum and glass. With annual updates, it remains a benchmark for innovation in the smartphone industry, impacting global communication, entertainment, and productivity.