Apple S2

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Apple S2
Apple S2 module.png
ProducedFrom September, 2016 to September, 2017
Designed byApple Inc.
Max. CPU clock rate520 MHz[1] 
Instruction setARM
PredecessorApple S1
SuccessorApple S3
ApplicationApple Watch Series 2
VariantApple S1P

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]

System-in-Package design[edit]

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.


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.


See also[edit]


  1. ^ a b c d 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. 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".
  5. ^ "Apple Wartch Series 2 Teardown". iFixit. September 15, 2016.
  6. ^ Gingerich, Mandi; Morrison, Jim (September 28, 2017). "Apple Watch Series 2 Teardown". TechInsights.