WM-F102

The WM-F102 is the radio-equipped counterpart to Sony's cassette-sized WM-102, fitting FM, AM, and TV audio reception into the same ultra-compact pressed-metal shell. Auto-reverse and Dolby B remain intact, and the radio controls are integrated into the body without significantly increasing the size, while gumstick battery support preserves the same rechargeable slimness as the non-radio version. It is one of Sony's clearest attempts to make a truly pocket-native all-rounder.

More than a breakthrough, it proves that the miniature format can absorb more complexity without losing its identity. By the time the F102 arrived, Sony was no longer simply making compact Walkman for the sake of it, but trying to ensure users did not have to choose between portability and usefulness. It helped normalize what a compact radio Walkman could be.