Apple S1

Last updated

Apple S1
Apple S1 module.png
The S1 integrated computer, 2.5 cm wide [1]
General information
Launched13 November 2014
Discontinued7 September 2016
Designed by Apple Inc.
Common manufacturer(s)
Product codeAPL0778 [3]
Performance
Max. CPU clock rate 520 MHz [4]  
Cache
L1 cache 32 KB data [4]
L2 cache256 KB [4]
Architecture and classification
Application Apple Watch
Technology node 28 nm [4] [2]
Instruction set ARMv7-A [4]
Physical specifications
Cores
GPU(s) PowerVR SGX543 [5]
Products, models, variants
Variant(s)
History
Successor Apple S2
Apple S1P
Apple S1P module.png
General information
LaunchedSeptember, 2016
DiscontinuedSeptember, 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(s) PowerVR Series 6 'Rogue' [6]
History
PredecessorApple 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]

Contents

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

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

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]

S1P

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

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

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

See also

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