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Apple W2
This is r2 (the current revision), saved by jack. Full history
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Apple W2
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| Designer | Apple |
|---|---|
| Introduced | September 2017 (Apple Watch Series 3) |
| Role | Wi-Fi and Bluetooth — integrated into the Apple S3 SiP |
| Devices | Apple Watch Series 3 |
| Predecessor | Apple W1 |
| Successor | Apple W3 |
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The Apple W2 moved the W series onto the wrist, built directly into the Apple S3 System in Package rather than shipped as a discrete chip. Apple credited it with 85 percent faster Wi-Fi and half the Bluetooth power draw — headroom the Series 3 spent on its defining feature, the first LTE Apple Watch.
1 Legacy✎
The W2 set the integration pattern: from here the Watch's wireless silicon lived inside the SiP, invisible in teardowns and inseparable from the S chip it served. One generation later the Apple W3 made the arrangement standard.
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