DD

by: Sony
Disc Drive series, requiring no belt between the motor to drive the capstan for extremely stable playback speed and thus low wow & flutter values. Only one Walkman ever made had 2 disk driven capstans, the DD9.

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List DD Walkman series

DD

by: Panasonic
Direct Drive series, the motor axis is the capstan for very stable playback speed and thus low wow & flutter values. Common on high-end cassette decks, very rare on Walkmans as only 3 were ever made, only by Panasonic.

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List DD Walkman series

Field

by: Sony
Sporty eco series

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List Field Walkman series

Professional

by: Sony
Professional series

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List Professional Walkman series

Soundabout

by: Sony
Sony first called their walkmans Stowaway in the UK, the Freestyle in Australia, and the Soundabout in the U.S. — but eventually it would become known everywhere as the Walkman.

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List Soundabout Walkman series

Sports

by: Sony
Sporty, waterproof, strong (yellow) series.

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List Sports Walkman series

Wireless

by: Sony
Wireless series. Able to use with Wireless Headphones with the appropriate receiver.

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List Wireless Walkman series

World Way

by: Panasonic
The smallest and lightest walkmans in the world at that time.

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List World Way Walkman series