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Apple W3
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| Designer | Apple |
|---|---|
| Introduced | September 2018 (Apple Watch Series 4) |
| Role | Wi-Fi and Bluetooth 5.0 — integrated into the S4–S8 SiPs |
| Devices | Apple Watch Series 4–8 · SE (both generations) · Ultra |
| Predecessor | Apple W2 |
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The Apple W3 brought Bluetooth 5.0 to the Watch inside the Apple S4 SiP and then simply stayed: five S-chip generations, both SEs, and the first Ultra all carried it, making the W3 one of the longest-serving pieces of silicon in Apple's lineup.
The W3 was the W series' quiet finale — after it, watch wireless folded anonymously into the SiPs and Apple's discrete networking ambitions re-emerged years later as the N1. Audio's branch of the family had already continued as the H series.
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