NW-S764

The NW-S764 introduced built-in Bluetooth to the ninth-generation S Series Network Walkman. It adopted a body style closer to the E050 series. With 8 GB storage for MP3, WMA, AAC, and WAV playback plus video and photo, it features lithium-ion battery life of 42 hours. WM-PORT, Clear Phase, and Bluetooth were standard.

This unit belongs to one of the stronger late S generations, where Sony balances the traditional Walkman idea with more modern expectations. It still is a dedicated player, compact and personal, but the design acknowledges a world that expects more polish and flexibility. Sony keeps the focus narrow here, and it helps.