Apple S1
 The S1 integrated computer, 2.5 cm wide[1] | |
| General information | |
|---|---|
| Launched | November 13, 2014 |
| Discontinued | September 7, 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] |
| Microarchitecture | ARMv7-A compatible[4] |
| Instruction set | ARM[4] |
| Physical specifications | |
| Cores |
|
| GPU | PowerVR SGX543[5] |
| Products, models, variants | |
| Variant | |
| History | |
| Successor | Apple S2 |
 | |
| General information | |
|---|---|
| Launched | September, 2016 |
| Discontinued | Present |
| Designed by | Apple Inc. |
| Architecture and classification | |
| Application | Apple Watch Series 1 |
| Instruction set | ARM |
| Physical specifications | |
| Cores |
|
| Products, models, variants | |
| Variant | |
| 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.[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.[3]
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]
- Apple designed 32-bit ARMv7[10] 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
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
-
![An illustration of the encapsulated S1 package.[8][14]](//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Apple_S1_module.png/109px-Apple_S1_module.png)
-
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.[14]](//upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Apple-S1-chips.jpg/111px-Apple-S1-chips.jpg)
This illustration shows the positions of the chips and other components inside the S1 package.[14] -
![This is how large the S1 is compared to the Apple Watch case.[14]](//upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Apple-S1-in-watch.jpg/93px-Apple-S1-in-watch.jpg)
This is how large the S1 is compared to the Apple Watch case.[14] -
![A size comparison of the S1 to the Apple A6 in the iPhone 5.[14]](//upload.wikimedia.org/wikipedia/commons/thumb/c/cb/S1-A6_Comparison.jpg/120px-S1-A6_Comparison.jpg)
![This illustration shows the positions of the chips and other components inside the S1 package.[14]](/wiki/File:Apple-S1-chips.jpg)
![This is how large the S1 is compared to the Apple Watch case.[14]](/wiki/File:Apple-S1-in-watch.jpg)
![A size comparison of the S1 to the Apple A6 in the iPhone 5.[14]](/wiki/File:S1-A6_Comparison.jpg)
See also
- Apple mobile application processors, the range of ARM-based mobile processors designed by Apple for their consumer electronic devices.
- Apple Watch
- Apple S2
References
- ^ "s1_decapped_abi.jpg". 2015-04-30. Retrieved 2016-05-01.
- ^ a b c Inside the Apple Watch: Technical Teardown
- ^ a b "Apple Watch Insides / PCB Details Revealed for the First Time". ABI Research. Retrieved 30 April 2015.
- ^ a b c d e f g Ho, Joshua; Chester, Brandon (July 20, 2015). "The Apple Watch Review: Apple S1 Analysis". AnandTech. Retrieved July 27, 2015.
- ^ a b "Apple Watch runs 'most' of iOS 8.2, may use A5-equivalent processor". AppleInsider. Retrieved 25 April 2015.
- ^ a b "Apple Unveils Apple Watch". Apple Inc. Retrieved 8 October 2014.
- ^ Samsung Supposedly Wins Orders to Produce Apple Watch Components
- ^ a b "Apple.com - Apple Watch - Technology". Apple. Retrieved 8 October 2014.
- ^ "Broadcom Wins WiFi in Apple Watch?". Chipworks. Retrieved 8 October 2014.
- ^ Hopper happily opens Apple Watch binaries ('armv7k') to disassemble, says they're 'armv7m'. -- Steve Troughton-Smith
- ^ We Just Took Apart the Apple Watch Series 1—Here’s What We Found Out
- ^ a b Apple Introduces Apple Watch Series 2, The Ultimate Device For A Healthy Life
- ^ Tim Cook: Apple Watch on Schedule to Ship in April
- ^ a b c d "Introducing the Apple Watch - Movie". Apple. Retrieved 8 October 2014.
