iPhone 4

The iPhone 4's 5-megapixel camera with LED flash and 720p video recording, combined with the App Store's explosion of photo apps like Instagram (launched the same year), did something no standalone camera ever could: it put a decent camera in 1.7 million pockets on launch day. The "best camera is the one you have with you" era began here. Point-and-shoot camera sales dropped 80% over the next decade. Photography went from hobby to reflex.