iPhone 4S
The iPhone 4S is a smartphone model developed by Apple Inc., released in October 2011 as the fifth generation of the iPhone series. It represents an incremental upgrade to the previous iPhone 4, featuring improvements in processing power, camera quality, and Siri, Apple's voice-activated personal assistant. The device is powered by the A5 chip, offers an 8-megapixel rear camera capable of recording 1080p video, and supports iCloud services. It runs on iOS software, introducing various updated features and applications. The iPhone 4S was notable for its enhanced performance and functionality compared to earlier models, contributing to the evolution of the iPhone brand.