The iPhone 5s is a smartphone developed by Apple Inc., released in September 2013. It features a 4-inch Retina display and is powered by the A7 chip, making it one of the first smartphones to use a 64-bit processor. The device comes with a 8-megapixel rear camera and a 1.2-megapixel front camera, allowing users to take high-quality photos and selfies. One of the standout features of the iPhone 5s is its Touch ID fingerprint sensor, which provides a secure way to unlock the phone and make purchases. The device runs on the iOS operating system, offering access to a wide range of apps through the App Store.