Apple S2
{{short description|Apple SiP in Apple Watch Series 2}}
{{Infobox CPU
| name = Apple S2
| image = Apple_S2_module.png
| image_size =
| caption =
| produced-start = September, 2016
| produced-end = September, 2017
| slow-unit =
| fastest =
| fast-unit =
| size-from = 16 nm
| size-to =
| soldby =
| designfirm = Apple Inc.
| manuf1 = TSMC
| arch = ARM – ARMv7-A
| microarch =
| code =
| l1cache =
| l2cache =
| l3cache =
| RAM =
| gpu =
| application = Apple Watch Series 2
| predecessor = Apple S1
| successor = Apple S3
| variant = Apple 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.{{cite news|last=Merritt|first=Rick|date=September 7, 2016|title=Apple Debuts Three Custom Chips|publisher=EE Times|url=https://www.eetimes.com/document.asp?doc_id=1330418|url-status=dead|access-date=October 25, 2017|archive-url=https://archive.today/20160913101923/http://www.eetimes.com/document.asp?doc_id=1330418|archive-date=September 13, 2016}} Apple says its two cores deliver 50% higher performance and the GPU delivers twice as much as the predecessor, the Apple S1.{{cite press release|url=https://www.apple.com/newsroom/2016/09/apple-introduces-apple-watch-series-2/|title=Apple introduces Apple Watch Series 2, the ultimate device for a healthy life|publisher=Apple|date=September 7, 2016|access-date=October 25, 2017|archive-date=November 16, 2017|archive-url=https://web.archive.org/web/20171116092044/https://www.apple.com/newsroom/2016/09/apple-introduces-apple-watch-series-2/|url-status=live}} The S1P SiP shipped in the Apple Watch Series 1 is a stripped down version of the S2 that lacks the GPS functionality, it is otherwise identical.{{cite web|url=https://9to5mac.com/2016/10/04/is-apple-watch-series-2-faster-than-series-1-video/|title=PSA: The Apple Watch Series 1 is just as fast as Series 2|first=Jeff|last=Benjamin|date=October 4, 2016|website=9to5mac.com|access-date=October 22, 2017|archive-date=November 8, 2021|archive-url=https://web.archive.org/web/20211108165512/https://9to5mac.com/2016/10/04/is-apple-watch-series-2-faster-than-series-1-video/|url-status=live}}
System-in-Package design
It uses a customized application processor that together with 512 MB memory,{{cite web|url=https://www.anandtech.com/show/10896/the-apple-watch-series-2-review|title=The Apple Watch Series 2 Review: Building Towards Maturity|last=Chester|first=Brandon|publisher=AnandTech|date=December 20, 2016|access-date=October 12, 2017|archive-date=October 22, 2017|archive-url=https://web.archive.org/web/20171022142025/https://www.anandtech.com/show/10896/the-apple-watch-series-2-review|url-status=live}} 8 GB storage 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{{cite web|url=https://www.ifixit.com/Teardown/Apple+Watch+Series+2+Teardown/67385|title=Apple Wartch Series 2 Teardown|publisher=iFixit|date=September 15, 2016|access-date=October 22, 2017|archive-date=October 7, 2020|archive-url=https://web.archive.org/web/20201007224932/https://www.ifixit.com/Teardown/Apple%20Watch%20Series%202%20Teardown/67385|url-status=live}} and RAM. In total, there are 42 individual silicon dies{{cite web|url=http://www.techinsights.com/about-techinsights/overview/blog/apple-watch-series-2-teardown/|title=Apple Watch Series 2 Teardown|first1=Mandi|last1=Gingerich|first2=Jim|last2=Morrison|publisher=TechInsights|date=September 28, 2017|access-date=October 22, 2017|archive-date=April 19, 2017|archive-url=https://web.archive.org/web/20170419003144/http://www.techinsights.com/about-techinsights/overview/blog/apple-watch-series-2-teardown/|url-status=live}} integrated into the single S2 component.
Images
File:Apple S2 module.png|An illustration of the encapsulated S2 package
File:Apple S2 in watch.jpg|This is how large the S2 is compared to the Apple Watch Series 2 case.
See also
- Apple silicon, the range of ARM-based processors designed by Apple
- Apple Watch
References
{{reflist|30em}}
{{Apple Inc.}}
{{Apple silicon}}
{{Apple Inc. hardware}}
{{Apple hardware since 1998}}