NW-ZX300G

The NW-ZX300G is the higher-capacity version of the ZX300 instead of a separate new generation. It kept the same playback-focused design, proprietary operating system, 3.1-inch touchscreen, Bluetooth, NFC, USB DAC support, direct USB transfer, WM-PORT, microSD expansion, and 4.4 mm balanced output, but increased internal storage from 64 GB to 128 GB.

This model reinforced Sony's compact playback-focused premium Walkman formula by offering more onboard capacity in the same chassis. The ZX300G strengthened the already well-defined ZX300 concept without changing its direction.