scytale , 6 hours ago

Your phone and tablet can be considered personal items, so you don’t need to declare those. The only thing I’d second guess is the steam deck given the statement:

Personal care goods, ornaments, and tools to be used during the period of stay by a traveler who enters the country temporarily and to be brought out again when leaving the country

But I would personally consider that a personal item since you’re not gonna be using it for commercial purposes anyway. I recommend you get a second opinion on that one.