Sony NW-S23 S2 Sports Network Walkman review: Sony NW-S23 S2 Sports Network Walkman

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CNET Editors' Rating

3 stars Good
  • Overall: 6.3
  • Design: 6.0
  • Features: 6.0
  • Performance: 7.0
Review Date:
Updated on:

The Good Compact and ergonomic design; awesome battery life; plays back MP3; decent over-the-ear headphones; water resistant.

The Bad Tiny display; controls somewhat confusing; expensive.

The Bottom Line It's sporty, it's long-lasting, and it plays MP3s! Sony takes a huge step forward with its NW-S23.

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Sony NW-S23 S2 Sports Network Walkman (256MB)

Responding to consumers bewildered by the lack of native MP3 playback in Sony digital audio devices, the Japanese tech juggernaut has introduced a new breed of player. The S2 Sports Network Walkman NW-S23 is a sporty 256MB player that plays back Sony's own ATRAC3 and ATRAC3plus formats and--drum roll, please--MP3s. The sleek, compact flash player has an ergonomic design and remarkable battery life, but some confusing controls and a tiny display cramp its style. As for MP3s, there's still a trick involved in getting these to play on the device. Nonetheless, it's a momentous time for Sony, as it finally has a device (with more to come) that can actually be called an MP3 player, albeit a pricey one at $180.

The NW-S23 measures 3.1 by 2.0 by 0.8 inches and weighs only about 2 ounces, but it actually feels a little smaller, thanks to its odd-yet-nifty contoured shape. Designed to be held in a closed fist with one's thumb placed squarely on the play/stop/select button (which is surrounded by grip-friendly rubber), the NW-S23 makes for an ideal exercise companion. And it comes with an equally stylish and functional armband that the player screws into. The player's rubbery, gray neck includes the forward- and reverse-track buttons that also serve as menu and Group navigation buttons. These buttons are designed to be pushed with the same thumb, which makes for an occasional and mildly uncomfortable contortion, especially when you're adjusting the menu settings. The dedicated volume buttons are nice, but they're easier to operate with two hands. That said, the player still maintains an ergonomic, durable feel overall with a perfectly placed headphone jack, inherent water-resistance, and a big, fat play button.


Here's what you get in the package: the NW-S23, an armband, a USB cable, and some nice headphones (install CD not shown).

The front of the player includes the Group button for navigating through various folders of albums or artists (Sony's own version of a playlist) and a Sound/Repeat button. The latter button toggles through the player's three treble/bass settings (Normal, User 1, and User 2) or the numerous repeat functions (All, Single, Group, Shuffle Group, and Shuffle All Groups) depending on how long it's pressed. The two-line, backlit LCD is noticeably small, and while necessary information such as battery life and scrolling track titles is displayed, it's just not that impressive. The minuscule screen also makes it difficult to surf through menu options, which show up one item at a time. On the back of the player, you'll find a Hold switch, a menu button, and a button that opens the water-resistant, rubber-sealed battery cap. The USB port lies next to the sealed battery compartment.

While the NW-S23 does play MP3 files natively (in other words, MP3s are more than just "supported"), the player doesn't have any notable extra features. There's no FM tuner, no voice recorder, no stopwatch, nada. It's important to point out that there are excellent 256MB players out there, such as the JetAudio iAudio U2, with many more features at prices lower than the NW-S23's $180. On a positive note, the dearth of features keeps the player simple, which is a good thing since the small display makes for a weak menu experience. The menu options include Display, which allows you to choose from basic track info, detailed track info such as format or bit rate, or elapsed time; Volume, which you can set to manual or to a static volume level; Sound, which selects the treble and bass settings; and Repeat Mode, which includes Normal, A-B loop, or Sentence repeat, which is ideal for spoken word audio. You can also turn on or off the AVLS volume limiter; the blue backlight; and the annoying beep, which, by default, sounds with every push of a button.


It says it right there on the packaging: Plays back ATRAC3 audio and MP3 files.

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Sony NW-S23 S2 Sports Network Walkman

Part Number: NWS23

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Quick Specifications See All

  • Built-in Display LCD
  • Run Time (Up To) 70 hour(s)
  • Capacity 256 MB
  • Color sports white
  • Weight 1.4 oz
  • Supported Digital Audio Standards WAV
  • Installed Size 256 MB
  • Type 1 year warranty
  • Sound Output Mode stereo
  • Type digital player