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Apple S1

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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]

System-in-Package design

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It uses a customized application processor that together with memory, storage and support processors for wireless connectivity, sensors and I/O constitute a complete computer in a single package. This package is filled with resin for durability.[9]

Components

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From reverse engineering, the processor handling the Wi-Fi and Bluetooth is a Broadcom BCM43342[10] and the six-axis gyroscope is from STMicroelectronics.[2]

S1P

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The SiP in Apple Watch Series 1 is called S1P and looks superficially identical to the S1, but in reality is an S2 minus the on-chip GPS functionality. It contains the same dual-core CPU with the same new GPU capabilities as the S2 making it about 50% faster than the S1.[12][13]

Announcement

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The S1 was announced on 9 September 2014 as part of the "Wish we could say more" event.

The S1P was announced on 7 September 2016 as part of the "See you on the 7th" event.

Launch date

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The S1 made its first appearance within the Apple Watch, which arrived in April 2015.[7][14] The S1 was discontinued with the launch of Apple Watch Series 1, containing the S1P.

The S1P was released with the Apple Watch Series 1 on 16 September 2016.[13]

Images

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  • An illustration of the encapsulated S1 package[9][15]
    An illustration of the encapsulated S1 package[9][15]
  • The S1P package shows little of the differences that's encapsulated inside.
    The S1P package shows little of the differences that's encapsulated inside.
  • This illustration shows the positions of the chips and other components inside the S1 package.[15]
    This illustration shows the positions of the chips and other components inside the S1 package.[15]
  • This is how large the S1 is compared to the Apple Watch case.[15]
    This is how large the S1 is compared to the Apple Watch case.[15]
  • A size comparison of the S1 to the Apple A6 in the iPhone 5[15]
    A size comparison of the S1 to the Apple A6 in the iPhone 5[15]

See also

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References

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  1. ^ "s1_decapped_abi.jpg". 30 April 2015. Archived from the original on 5 May 2016. Retrieved 1 May 2016.
  2. ^ a b c "Inside the Apple Watch: Technical Teardown". Archived from the original on 18 May 2015. Retrieved 30 April 2015.
  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. ^ a b "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. ^ a b "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.
  9. ^ a b "Apple.com - Apple Watch - Technology". Apple. Archived from the original on 9 September 2014. Retrieved 8 October 2014.
  10. ^ "Broadcom Wins WiFi in Apple Watch?". Chipworks. Archived from the original on 6 October 2014. Retrieved 8 October 2014.
  11. ^ "Hopper happily opens Apple Watch binaries ('armv7k') to disassemble, says they're 'armv7m'. -- Steve Troughton-Smith". Archived from the original on 3 March 2016. Retrieved 25 June 2015.
  12. ^ "We Just Took Apart the Apple Watch Series 1—Here's What We Found Out". Archived from the original on 24 January 2018. Retrieved 13 October 2016.
  13. ^ a b "Apple Introduces Apple Watch Series 2, The Ultimate Device For A Healthy Life". Archived from the original on 14 April 2017. Retrieved 8 September 2017.
  14. ^ "Tim Cook: Apple Watch on Schedule to Ship in April". Archived from the original on 4 April 2015. Retrieved 30 January 2015.
  15. ^ a b c d "Introducing the Apple Watch - Movie". Apple. Archived from the original on 7 October 2014. Retrieved 8 October 2014.
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