Let's quickly remember a few of VoiceOver's most important gestures that will let you do some of the most basic actions including selection, interacting, navigating, and scrolling.
And Apple has a great video: https://m.youtube.com/watch?v=qDm7GiKra28&feature=youtu.be
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Apple asks us to consider the combine behavior, before using ignore, for .accessibilityElement(children: ). And for good reason, if combine works, and later on you decide to change the UI, the accessibility attributes will be updated for you.
If your watch app has good VoiceOver support, chances are you'll also have good Assistive Touch support. But an improvement you can make is to implement a quick action (triggered with a double pinch) when there is a main action you can perform.
You don't have to offer an alternative layout just for the accessibility category. You can actually compare content size categories. So you could tweak the UI already for anything equal to or larger than .extraExtraLarge, for example.
