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  1. Copilot Answer
    DeveloperApple
    First releasedOctober 14, 2011
    DiscontinuedSeptember 9, 2014 (outside India) · February 17, 2016 (India) July 22, 2019 (iOS update support date)
    Hardware

    The iPhone 4s uses the Apple A5 system-on-chip (SoC), also found in the iPad Mini (1st generation), that incorporates an Imagination Technologies PowerVR SGX543 graphics processing unit (GPU). This GPU f… See more

    Reception

    Reception to the iPhone 4s was favorable. Reviewers noted Siri, the new camera, and processing speeds as significant advantages over the prior model. Tim Stevens of Engadget said that the "iPhone 4s does ev… See more