Space Language
Artist's commentary
Hang in There, Kogasa-san 1966
You can also use one in Taiwan with no problem if it's band 28-compatible. We're talking LTE here, though.
For this kind of thing, if you don't look at the explanations in the shop display or check around on the net, there's loads of stuff not written in the catalog that you won't understand. If you can't afford a new smart phone, you can buy a used one, of course. We hunted up a cheap one!