WM-EX642

The WM-EX642 is another market-tailored variation on the EX633 platform, sharing the same compact body, auto-reverse transport, Dolby B noise reduction, Mega Bass, AVLS, blank skip, 15x AMS search, and long battery performance. Like the EX641, its main differences were visual and regional instead of functional, allowing Sony to extend the usefulness of a well-established midrange design without redesigning the underlying hardware. The machine itself remained very much a late-period practical EX player.

This kind of model matters less because it changed the Walkman and more because it shows how Sony kept the line commercially alive across different territories. The EX642 reflects the company's increasingly modular approach to cassette portability, where one strong base platform could be dressed and distributed in slightly different ways depending on market needs. It is a compact but very characteristic piece of the late-1990s Walkman ecosystem.