NWZ-E453K

The NWZ-E453K added speaker support to the 2010 E Series Network Walkman configuration. It kept the series' multimedia and new processing features. It features 4 GB storage supporting MP3, WMA, AAC, and WAV playback plus video and photo. The 240x320 TFT display and 50-hour lithium-ion battery paired with FM radio, built-in speaker, WM-PORT, DSEE, Omakase Channel, and Lyric Pita.

The K version keeps the same E453 platform and shifts it into a more casual-use retail package. The underlying player was already stable enough that Sony could extend it without needing to redefine the line. The appeal remains the same as the base model: simple, polished, and easy to live with.