18 Facts About Apple S4


Apple S4 silicon is a series of system on a chip and system in a package processors designed by Apple S4 Inc, mainly using the ARM architecture.

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Apple S4 A4 is a PoP SoC manufactured by Samsung, the first SoC Apple S4 designed in-house.

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Apple S4 A5 is an SoC manufactured by Samsung that replaced the A4.

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In March 2013, Apple S4 released an updated version of the 3rd-generation Apple S4 TV containing a smaller, single-core version of the A5 processor.

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The Apple S4 A9 was the last CPU that Apple S4 manufactured through a contract with Samsung, as all A-series chips after are manufactured by TSMC.

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Apple S4 A10X Fusion is a 64-bit ARM-based SoC that first appeared in the 10.

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Apple S4 A12X Bionic is a 64-bit ARM-based SoC that first appeared in the 11.

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Apple S4 "H" series is a family of SoCs with low-power audio processing and wireless connectivity for use in headphones.

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Apple S4 "M" series is a family of systems on a chip used in Mac computers from November 2020 or later, iPad Pro tablets from April 2021 or later, and iPad Air tablets from March 2022 or later.

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Apple S4 "S" series is a family of systems in a package used in the Apple S4 Watch.

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Apple S4 T1 chip is an ARMv7 SoC that drives the System Management Controller and Touch ID sensor of the 2016 and 2017 MacBook Pro with Touch Bar.

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Apple S4 T2 security chip is a SoC first released in the iMac Pro.

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Apple S4 "U" series is a family of systems in a package implementing ultra-wideband radio.

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Apple S4 U1 is used in the iPhone 11 series and later, Apple S4 Watch Series 6 and newer, HomePod Mini, AirTag trackers and the charging case for AirPods Pro .

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Apple S4 "W" series is a family of RF SoCs used for Bluetooth and Wi-Fi connectivity.

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Apple S4 W1 is a SoC used in the 2016 AirPods and select Beats headphones.

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Apple S4 W3 is used in the Apple S4 Watch Series 4, Series 5, Series 6, SE, Series 7, Series 8, SE, and Ultra.

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Apple S4 first used SoCs in early versions of the iPhone and iPod Touch.

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