WM-FS220

This Sports Walkman pushed practicality further with up to twenty-five hours of battery life from two AA cells, a digital FM/AM tuner with presets, and full water resistance. Logic-controlled buttons simplified operation, a hold switch prevented accidental presses, and an adjustable grip improved handling during activity. The gasket-sealed body and larger shell reflected heavy-duty design priorities.

The FS220 represented Sony's final emphasis on endurance in the Sports series. It targeted athletes and outdoor enthusiasts who needed a rugged player that could survive rough conditions and long sessions, keeping the category viable even as cassette overall declined.