Apple S1

Apple S1

The S1 integrated computer, 2.5 cm wide[1]
Produced From November 13, 2014 to September 7, 2016
Designed by Apple Inc.
Common manufacturer(s)
Max. CPU clock rate 520 MHz[3] 
Min. feature size 28 nm[3][2]
Instruction set ARM[3]
Microarchitecture ARMv7-A compatible[3]
Product code APL0778[4]
Cores 1[3]
L1 cache 32 KB data[3]
L2 cache 256 KB[3]
Successor Apple S2
GPU PowerVR SGX543[5]
Application Apple Watch
Variant Apple S1P
Apple S1P
Produced From September, 2016 to Present
Designed by Apple Inc.
Instruction set ARM
Cores 2
Predecessor Apple S1
Application Apple Watch Series 1
Variant Apple S2

The Apple S1 is the integrated computer in the Apple Watch, and it is described as a "System in Package" (SiP) by Apple Inc.[6]

Samsung is said to be the main supplier of key components, such as the RAM and NAND flash storage, and the assembly itself,[7] but early teardowns reveal RAM and flash memory from Toshiba and Micron Technology.[4]

System-in-Package design

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.[8]

Components

From reverse engineering, the processor handling the Wi-Fi and Bluetooth is a Broadcom BCM43342[9] and the six-axis gyroscope is from STMicroelectronics.[2]

S1P

The SiP in Apple Watch Series 1 is called S1P and looks superficially identical to the S1, but it seems to include most of the new features of the Apple S2 save for GPS functionality. For instance it contains the same dual-core CPU with the same new GPU capabilities as the S2 making it about 50% faster than the S1.[11][12]

Announcement

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

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

Launch date

The S1 made its first appearance within the Apple Watch, which arrived in April 2015.[6][13] 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 the 16th September 2016.[12]

Images

  1. ^ Cite error: The named reference AppleTech was invoked but never defined (see the help page).
  2. ^ a b c d "Introducing the Apple Watch - Movie". Apple. Retrieved 8 October 2014. 

See also

References

  1. ↑ "s1_decapped_abi.jpg". 2015-04-30. Retrieved 2016-05-01.
  2. 1 2 3 Inside the Apple Watch: Technical Teardown
  3. 1 2 3 4 5 6 7 Ho, Joshua; Chester, Brandon (July 20, 2015). "The Apple Watch Review: Apple S1 Analysis". AnandTech. Retrieved July 27, 2015.
  4. 1 2 "Apple Watch Insides / PCB Details Revealed for the First Time". ABI Research. Retrieved 30 April 2015.
  5. 1 2 "Apple Watch runs 'most' of iOS 8.2, may use A5-equivalent processor". AppleInsider. Retrieved 25 April 2015.
  6. 1 2 "Apple Unveils Apple Watch". Apple Inc. Retrieved 8 October 2014.
  7. ↑ Samsung Supposedly Wins Orders to Produce Apple Watch Components
  8. ↑ "Apple.com - Apple Watch - Technology". Apple. Retrieved 8 October 2014.
  9. ↑ "Broadcom Wins WiFi in Apple Watch?". Chipworks. Retrieved 8 October 2014.
  10. ↑ Hopper happily opens Apple Watch binaries ('armv7k') to disassemble, says they're 'armv7m'. -- Steve Troughton-Smith
  11. ↑ We Just Took Apart the Apple Watch Series 1—Here’s What We Found Out
  12. 1 2 Apple Introduces Apple Watch Series 2, The Ultimate Device For A Healthy Life
  13. ↑ Tim Cook: Apple Watch on Schedule to Ship in April
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