Hi, 3rd party watch dev here!<p>WatchKit is really limited. It would be impossible, I believe, to make an app anywhere near as good as the native Stopwatch using WatchKit.<p>So this comment is pretty frustrating, actually: &quot;you have to understand at least the basics of the underlying architecture if you want to write efficient code&quot;. What basic architecture? WatchKit is all we&#x27;ve got as a 3rd party devs! And it sucks.<p>It seems insane and very ill-advised to me that Apple isn&#x27;t using the same SDKs for their own apps as what&#x27;s available to 3rd parties.