Apple S6

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<div style="font: bold 2em/1.2 -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif; color: var(--wiki-color);">Apple S6</div>
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! class="ios-lab" | Designer
| class="ios-val" | [[Apple]]
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! class="ios-lab" | Introduced
| class="ios-val" | September 2020 (Apple Watch Series 6)
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! class="ios-lab" | Type
| class="ios-val" | System in Package (SiP)
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! class="ios-lab" | CPU
| class="ios-val" | Dual-core, 64-bit — [[Apple A13]]-derived cores, ~20% faster than [[Apple S5|S5]]
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! class="ios-lab" | Wireless
| class="ios-val" | [[Apple U1|U1]] ultra-wideband · 5 GHz Wi-Fi
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! class="ios-lab" | Devices
| class="ios-val" | Apple Watch Series 6
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! class="ios-lab" | Predecessor
| class="ios-val" | [[Apple S5]]
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! class="ios-lab" | Successor
| class="ios-val" | [[Apple S7]]
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{{Apple silicon Navbox}}

The Apple S6 rebuilt the Watch's processor on the [[Apple A13]] generation's efficiency cores — about twenty percent faster while charging the Series 6 in half the time. It brought the [[Apple U1|U1]] ultra-wideband chip and 5 GHz Wi-Fi to the wrist and ran the always-on altimeter and blood-oxygen sensing that headlined the Series 6.

= Legacy =

The S6's A13-derived dual-core turned out to be Apple's watch workhorse: the [[Apple S7|S7]] and [[Apple S8|S8]] reused it essentially unchanged, making this the architecture that carried the Apple Watch for three straight generations until the [[Apple S9|S9]]'s big rebuild.