CNET -
The good: The Walkman Z portable media player emphasizes music as the killer mobile app, integrating Sony’s Music Unlimited service, high-quality headphones, and unmatched audio enhancement software.
The bad: Considering its premium price, the Walkman Z has limited video support, a thick design, mediocre screen resolution, short battery life, no memory expansion, no cameras, and is built around a version of Android that’s soon to be outdated.
The bottom line: The Walkman Z is Sony’s iPod Touch for Android-loving audiophiles.