Apple S1

Apple S1
The S1 integrated computer, 2.5 cm wide[1]
General information
Launched13 November 2014
Discontinued7 September 2016
Designed byApple Inc.
Common manufacturer
Product codeAPL0778[3]
Performance
Max. CPU clock rate520 MHz[4] 
Cache
L1 cache32 KB data[4]
L2 cache256 KB[4]
Architecture and classification
ApplicationApple Watch
Technology node28 nm[4][2]
Instruction setARMv7-A[4]
Physical specifications
Cores
GPUPowerVR SGX543[5]
Products, models, variants
Variant
History
SuccessorApple S2
Apple S1P
General information
LaunchedSeptember, 2016
DiscontinuedSeptember, 2018
Designed byApple Inc.
Performance
Max. CPU clock rate520 MHz[6] 
Architecture and classification
ApplicationApple Watch Series 1
MicroarchitectureARMv7-A compatible[6]
Instruction setARM[6]
Physical specifications
Cores
GPUPowerVR Series 6 'Rogue'[6]
History
PredecessorApple S1

The Apple S1 is the integrated computer in the Apple Watch, and it is described as a "System in Package" (SiP) by Apple Inc.[7]

Samsung is said to be the main supplier of key components, such as the RAM and NAND flash storage, and the assembly itself,[8] but early teardowns reveal RAM and flash memory from Toshiba and Micron Technology.[3]

  1. ^ "s1_decapped_abi.jpg". 30 April 2015. Archived from the original on 5 May 2016. Retrieved 1 May 2016.
  2. ^ a b Cite error: The named reference chipworks was invoked but never defined (see the help page).
  3. ^ a b "Apple Watch Insides / PCB Details Revealed for the First Time". ABI Research. Archived from the original on 6 June 2017. Retrieved 30 April 2015.
  4. ^ a b c d e f Ho, Joshua; Chester, Brandon (20 July 2015). "The Apple Watch Review: Apple S1 Analysis". AnandTech. Archived from the original on 22 July 2015. Retrieved 27 July 2015.
  5. ^ "Apple Watch runs 'most' of iOS 8.2, may use A5-equivalent processor". AppleInsider. Archived from the original on 26 April 2015. Retrieved 25 April 2015.
  6. ^ a b c d e "The Apple Watch Series 2 Review: Building Towards Maturity". Archived from the original on 22 October 2017. Retrieved 11 February 2018.
  7. ^ "Apple Unveils Apple Watch". Apple Inc. Archived from the original on 19 April 2017. Retrieved 8 October 2014.
  8. ^ "Samsung Supposedly Wins Orders to Produce Apple Watch Components". Archived from the original on 30 April 2015. Retrieved 9 January 2015.