[canuckintime]

iPhone 5c, iPhone SE, Apple watch series 1 etc use evidence that Apple takes availability of stock parts into design considerations.

That doesn't imply that the Apple Watch poor sales theory is correct though

[orbitur]

The iPhone 5c was an attempt at a "youth market" that didn't exist, but I'll agree it was cheap for them to make it.

However, the iPhone SE had 98% of the guts of the 6S in a smaller package. That's not a cheap or simple thing to do.

And the Series 1 Apple Watch had a better CPU. That's basically a different watch.