Sony

Sony NW-A55/B Walkman Hi-Res 16GB MP3 Player

Name: Sony NW-A55/B Walkman Hi-Res 16GB MP3 Player
Brand: Sony
SKU: NW-A55/B
Rating: 4.4 (1268 reviews)

★★★★★4.4 (1268 reviews)

Immerse Yourself in High-Resolution AudioExperience music like never before with the Sony NW-A55/B Walkman. This Hi-Res MP3 player delivers exceptional audio fidelity, bringing out the nuances in your favorite tracks. With up to 45 hours of battery life and expandable storage, your music goes whe...

$379.00*

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*Price sourced from Amazon.com. Last updated:Jul 21, 2026.Price and availability are subject to change.

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Overview

Immerse Yourself in High-Resolution Audio

Experience music like never before with the Sony NW-A55/B Walkman. This Hi-Res MP3 player delivers exceptional audio fidelity, bringing out the nuances in your favorite tracks. With up to 45 hours of battery life and expandable storage, your music goes where you go.

Brand: Sony
Model: NW-A55/B
Storage: 16GB Internal
Audio: Hi-Res Audio with S-Master HX upscaling
Color: Grayish Black
Battery Life: Up to 45 hours
Expansion: SD card slot

Key Features

Precision engineered for improved sound quality

Truly authentic sound with Hi-Res Audio

S-Master HX digital amplifier for pure sound quality

DSEE HX upscaling restores quality to compressed files

In the box: Walkman, USB cable, Startup Guide, Instruction Manual

Specifications

Model Number

NW-A55/B

Storage Capacity

16GB

Audio Technology

Hi-Res Audio

Amplifier Type

S-Master HX digital amplifier

Upscaling Technology

DSEE HX

Included Accessories

Walkman, USB cable, Startup Guide, Instruction Manual

Frequently Asked Questions

What is the internal storage capacity of the Sony NW-A55/B Walkman?

The Sony NW-A55/B Walkman comes with 16GB of internal storage for your music files.

Does this MP3 player support high-resolution audio?

Yes, it is designed for truly authentic sound with Hi-Res Audio playback capabilities.

What technology does this Walkman use for sound amplification?

It features the S-Master HX digital amplifier, which aims to deliver pure sound quality.

Can this device improve the quality of compressed music files?

Yes, it includes DSEE HX upscaling technology to restore quality to compressed files, making them sound better.

What items are included in the box with the Walkman?

The box includes the Walkman, a USB cable, a Startup Guide, and an Instruction Manual.

Is this device primarily focused on sound quality?

Yes, it is precision engineered specifically for improved sound quality, making it ideal for audio enthusiasts.

Does the Walkman offer features to enhance sound further than basic playback?

With the S-Master HX amplifier and DSEE HX upscaling, it actively works to enhance and preserve sound quality.

What Buyers Say

4.4 ★★★★★1268 Amazon ratings

👍 Pros

Precision engineered to deliver improved sound quality, catering to audiophiles and casual listeners alike.
Supports Hi-Res Audio, enabling a truly authentic sound experience with high-fidelity playback.
Features the S-Master HX digital amplifier, ensuring pure sound quality by reducing distortion and noise.
Includes DSEE HX upscaling technology, which restores the quality of compressed audio files, bringing them closer to Hi-Res Audio.
Comes complete with the Walkman, a USB cable, a Startup Guide, and an Instruction Manual in the box, providing everything needed to get started.
The 16GB internal storage provides a decent amount of space for storing a collection of Hi-Res audio tracks.
Designed as a portable device, allowing users to enjoy high-quality audio on the go without relying on a smartphone.

👎 Cons

The 16GB internal storage might be limited for users with extensive Hi-Res audio libraries, potentially requiring careful management of files.
The product information does not specify if the device supports expandable storage via microSD cards, which could be a significant limitation.
The description focuses solely on audio playback features, implying a lack of other functionalities such as app support, Wi-Fi, or Bluetooth for streaming services.
Does not mention a screen type or size, which might be a factor for users who prefer visual navigation through their music library.
The product name implies an MP3 player, but the focus on Hi-Res Audio might mean it's primarily designed for specific, higher-quality file formats rather than universal MP3 playback.
Battery life details are not provided, which is a key consideration for a portable music player.