Apple S2

The Apple S2 is the integrated computer in the Apple Watch Series 2, and it is described as a "System in Package" (SiP) by Apple Inc. It was revealed on September 7, 2016, with very little info about specifications.[2] Apple says its two cores deliver 50% higher performance and the GPU delivers twice as much as the predecessor, the Apple S1[3] but similar in performance to the Apple S1P in the Apple Watch Series 1.[4]

Apple S2
General information
LaunchedSeptember, 2016
DiscontinuedSeptember, 2017
Designed byApple Inc.
Performance
Max. CPU clock rate520 MHz[1] 
Architecture and classification
ApplicationApple Watch Series 2
Instruction setARM – ARMv7-A
Physical specifications
Cores
Products, models, variants
Variant(s)Apple S1P
History
PredecessorApple S1
SuccessorApple S3

System-in-Package design

It uses a customized application processor that together with 512 MB memory,[1] 8 GB storage[1] and support processors for wireless connectivity, GPS, sensors and I/O constitute a complete computer in a single package. This package is filled with resin for durability.

Components

The device integrates discrete components like Wi-Fi, Bluetooth, GPS, NFC, touch controller, accelerometers, barometric sensor[5] and RAM. In total, there are 42 individual silicon dies[6] integrated into the single S2 component.

Images
  • An illustration of the encapsulated S2 package.
  • This is how large the S2 is compared to the Apple Watch Series 2 case.

See also

References
  1. Chester, Brandon (December 20, 2016). "The Apple Watch Series 2 Review: Building Towards Maturity". AnandTech. Retrieved October 12, 2017.
  2. Merritt, Rick (September 7, 2016). "Apple Debuts Three Custom Chips". EE Times. Archived from the original on September 13, 2016. Retrieved October 25, 2017.
  3. "Apple introduces Apple Watch Series 2, the ultimate device for a healthy life" (Press release). Apple. September 7, 2016.
  4. Benjamin, Jeff (October 4, 2016). "PSA: The Apple Watch Series 1 is just as fast as Series 2". 9to5mac.com.
  5. "Apple Wartch Series 2 Teardown". iFixit. September 15, 2016.
  6. Gingerich, Mandi; Morrison, Jim (September 28, 2017). "Apple Watch Series 2 Teardown". TechInsights.
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