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.
The S1 integrated computer, 2.5 cm wide | |
| General information | |
|---|---|
| Launched | 13 November 2014 |
| Discontinued | 7 September 2016 |
| Designed by | Apple Inc. |
| Common manufacturer(s) | |
| Product code | APL0778 |
| Performance | |
| Max. CPU clock rate | 520 MHz |
| Cache | |
| L1 cache | 32 KB data |
| L2 cache | 256 KB |
| Architecture and classification | |
| Application | Apple Watch |
| Technology node | 28 nm |
| Instruction set | ARMv7-A |
| Physical specifications | |
| Cores |
|
| GPU(s) | PowerVR SGX543 |
| Products, models, variants | |
| Variant(s) | |
| History | |
| Successor(s) | Apple S2 |
| General information | |
|---|---|
| Launched | September, 2016 |
| Discontinued | September, 2018 |
| Designed by | Apple Inc. |
| Performance | |
| Max. CPU clock rate | 520 MHz |
| Architecture and classification | |
| Application | Apple Watch Series 1 |
| Microarchitecture | ARMv7-A compatible |
| Instruction set | ARM |
| Physical specifications | |
| Cores |
|
| GPU(s) | PowerVR Series 6 'Rogue' |
| History | |
| Predecessor(s) | Apple S1 |
Samsung is said to be the main supplier of key components, such as the RAM and NAND flash storage, and the assembly itself, but early teardowns reveal RAM and flash memory from Toshiba and Micron Technology.
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