Size/resolution 4.0-inch (10.2 cm) / FWVGA (854 × 480 Pixels)

Panel type

TFT color display with white LED-backlight

Capacitive touch screen


USB Hi-Speed USB (USB 2.0 compliant)
Headphone Stereo mini-jack, Balanced standard-jack
WM-PORT WM-PORT (multiple connecting terminal): 22 pins

External memory





Bluetooth Specifications

Communication system Bluetooth Specification Version 4.2
Frequency band 2.4 GHz band (2.4000 GHz - 2.4835 GHz)
Modulation method FHSS

Compatible Bluetooth profiles (*1)

A2DP (Advanced Audio Distribution Profile)

AVRCP (Audio Video Remote Control Profile)

Supported Codec (Transmission) (*2) SBC (*3), LDAC, aptX, aptX HD
Supported Codec (Reception) SBC, LDAC, AAC

*1 Bluetooth profiles are standardized according to the purpose of the Bluetooth device.

*2 Codec indicates the audio signal compression and conversion format.

*3 SBC stands for Subband Codec.

Output (headphones)


Frequency response

20 Hz to 40,000 Hz

(when playing data file, single signal measurement)


Power Source

Built-in Rechargeable lithium-ion Battery

USB power (from a computer via a USB connector of the player)

Charging Time

USB-based charging

Approx. 7 hours

Operating temperature 5°C to 35°C (41 ºF to 95 ºF)

Dimensions (Walkman)

w/h/d, projecting parts not included

Approx. 65.3 mm × 123.4 mm × 19.9 mm

(2.58 inches × 4.86 inches × 0.79 inches)


Approx. 72.9 mm × 124.2 mm × 19.9 mm

(2.87 inches × 4.89 inches × 0.79 inches)

Mass (Walkman)


Approx. 455 g (16.1 oz)


Approx. 267 g (9.5 oz)

Dimensions (Leather case)

(NW-WM1Z only)

w/h/d, projecting parts not included

Approx. 81 mm × 132 mm × 29 mm

(31.9 inches × 52.0 inches × 11.5 inches)


NW-WM1Z 256 GB
NW-WM1A 128 GB

Actual available memory for other contents (*1)

NW-WM1Z Approx. 230.60 GB=247,612,538,880 byte
NW-WM1A Approx. 114.15 GB=122,573,127,680 byte

*1 Available capacity may vary. A portion of the memory is used for data management functions.

The contents of the Help Guide may be subject to change without notice due to updates to the product's specifications.