...what?

Aside from maybe the personal computer, they were not the first to any of those. BlackBerry/Palm/Windows Mobile devices all existed prior to the iPhone; the LG Prada was announced prior to the iPhone and had a similar form factor. Many tablet PCs existed before the iPad. Many Bluetooth earbuds existed prior to the AirPods.

They did a much better job of integrating each of these into a cohesive experience, but they absolutely had predecessors in each category.