Apple W3

<style>
.ios-ib th.ios-lab { background-color: #333; color: #fff; text-align: center; width: 28%; padding: 6px; }
.ios-ib td.ios-val { text-align: left; padding: 6px 10px; }
</style>
{| class="ios-ib" style="width: 100%; border: 2px solid #333; text-align: center;" darkstyle="border-color: #48484a;"
|-
| colspan="2" style="padding: 28px 20px 42px;" |
<div style="font: bold 2em/1.2 -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif; color: var(--wiki-color);">Apple W3</div>
|-
! class="ios-lab" | Designer
| class="ios-val" | [[Apple]]
|-
! class="ios-lab" | Introduced
| class="ios-val" | September 2018 (Apple Watch Series 4)
|-
! class="ios-lab" | Role
| class="ios-val" | Wi-Fi and Bluetooth 5.0 — integrated into the S4–S8 SiPs
|-
! class="ios-lab" | Devices
| class="ios-val" | Apple Watch Series 4–8 · SE (both generations) · Ultra
|-
! class="ios-lab" | Predecessor
| class="ios-val" | [[Apple W2]]
|}

{{Apple silicon Navbox}}

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.

= Legacy =

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 [[Apple N1|N1]]. Audio's branch of the family had already continued as the [[Apple H1|H series]].