SF, it's true that US/EU 2x5W isn't, but he's given his locstat as 'BKK'. Might be the ICAO designator for Bangkok International Suvarnabhumi so if he's got an Asian 205W it's probably JCV capable.
sg nuvi205sgmy screen 001 200x114 Display resolution of 2x5W is 480x272 pixels so will use either the 190x210 [for sure] or maybe the 212x234 split-screen.