![]() The S1 integrated computer, 2.5 cm wide[1] | |
General information | |
---|---|
Launched | 13 November 2014 |
Discontinued | 7 September 2016 |
Designed by | Apple Inc. |
Common manufacturer | |
Product code | APL0778[3] |
Performance | |
Max. CPU clock rate | 520 MHz[4] |
Cache | |
L1 cache | 32 KB data[4] |
L2 cache | 256 KB[4] |
Architecture and classification | |
Application | Apple Watch |
Technology node | 28 nm[4][2] |
Instruction set | ARMv7-A[4] |
Physical specifications | |
Cores |
|
GPU | PowerVR SGX543[5] |
Products, models, variants | |
Variant | |
History | |
Successor | Apple S2 |
![]() | |
General information | |
---|---|
Launched | September, 2016 |
Discontinued | September, 2018 |
Designed by | Apple Inc. |
Performance | |
Max. CPU clock rate | 520 MHz[6] |
Architecture and classification | |
Application | Apple Watch Series 1 |
Microarchitecture | ARMv7-A compatible[6] |
Instruction set | ARM[6] |
Physical specifications | |
Cores |
|
GPU | PowerVR Series 6 'Rogue'[6] |
History | |
Predecessor | Apple 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
[edit]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
[edit]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]
- Apple designed 32-bit ARMv7[11] based application processor APL0778 as the central processing unit (CPU), with an integrated PowerVR SGX543 graphics processing unit (GPU).[5]
- 512 MB DRAM from Elpida, wire bonded on top of the APL0778 CPU
- NFC controller from NXP
- NFC booster chip from AMS
- 8 GB flash from SanDisk and Toshiba
- Wireless charging chip from IDT
- Touch controller from ADI
- Integrated gyro/accelerometer from STMicroelectronics
- BCM43342 Wi-Fi/FM/BT combo chip from Broadcom
- Power management unit (PMU) from Dialog Semiconductor
S1P
[edit]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
[edit]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
[edit]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
[edit]-
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 is how large the S1 is compared to the Apple Watch case.[15]
See also
[edit]- Apple silicon, the range of ARM-based processors designed by Apple.
- Apple Watch
- Apple S2
References
[edit]- ^ "s1_decapped_abi.jpg". 30 April 2015. Archived from the original on 5 May 2016. Retrieved 1 May 2016.
- ^ a b c "Inside the Apple Watch: Technical Teardown". Archived from the original on 18 May 2015. Retrieved 30 April 2015.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ a b "Apple Unveils Apple Watch". Apple Inc. Archived from the original on 19 April 2017. Retrieved 8 October 2014.
- ^ "Samsung Supposedly Wins Orders to Produce Apple Watch Components". Archived from the original on 30 April 2015. Retrieved 9 January 2015.
- ^ a b "Apple.com - Apple Watch - Technology". Apple. Archived from the original on 9 September 2014. Retrieved 8 October 2014.
- ^ "Broadcom Wins WiFi in Apple Watch?". Chipworks. Archived from the original on 6 October 2014. Retrieved 8 October 2014.
- ^ "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.
- ^ "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.
- ^ 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.
- ^ "Tim Cook: Apple Watch on Schedule to Ship in April". Archived from the original on 4 April 2015. Retrieved 30 January 2015.
- ^ 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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