Choosing a digital audio player means deciding which tradeoff matters most: Android and wireless features, a clearly listed headphone output, a broad range of audio formats, or simply a lower price. The four choices here cover those priorities differently, with two Sony Walkman models, a Shanling Android DAP, and the Fiio Snowsky Disc.
Quick take
Start with your priority rather than the product name. The prices span a $328.99 listed-price spread. Sony NW-ZX707 sits at the high end, SHANLING M3X at the low end, while Sony NW-A55 and Fiio Snowsky Disc sit close together in the lower portion of the range. Condition, playback-format detail, and the type of connectivity named in each title should settle the shortlist.
Listed-price comparison
The bars show each player's relative position within this four-player price set.
| Player | Listed price | Price bar | Price position |
|---|---|---|---|
| Sony NW-ZX707 Walkman | $465.99 | Highest in this comparison | |
| Sony NW-A55 Walkman | $148.00 | Near the lower end | |
| SHANLING M3X Hi-Res DAP | $137.00 | Lowest in this comparison | |
| Fiio Snowsky Disc | $148.88 | Near the lower end |
Decision matrix
- Android DAP wording: Sony NW-ZX707 and SHANLING M3X explicitly include Android DAP in their titles. That makes them the direct choices for shoppers searching for an Android-labeled player.
- Headphone output: Sony NW-ZX707, Sony NW-A55, and SHANLING M3X each name a headphone jack. The Fiio title instead emphasizes Bluetooth 5.4, WiFi, and USB AUDIO.
- Named Sony processing features: Sony NW-A55 includes S-Master HX and DSEE HX in its feature description, giving it a specific Walkman-oriented angle.
- Price position: SHANLING M3X is the lowest-priced entry, while Sony NW-ZX707 is the highest-priced one. The absolute spread makes price a meaningful part of the decision, not just a tie-breaker.
Product notes
Sony NW-ZX707 Walkman 64GB

Pick the Sony NW-ZX707 Walkman 64GB when your library spans many file types and you want an Android DAP named in the title. Its format list covers MP3, WMA, AAC, FLAC, WAV, HE-AAC, ALAC, AIFF, DSD, APE, and MQA, while listed battery life reaches up to 25 hours. Bluetooth 5.0 and SBC, LDAC, aptX, aptX HD, and AAC are also named. The tradeoff is its $465.99 listed price, highest in this comparison, plus a headphone jack as the stated audio output. This is the choice for format breadth and battery information, not the lowest-cost route.
Sony NW-A55 Walkman

The Sony NW-A55 Walkman suits a listener who wants Sony's Walkman line, Hi-Res Audio wording, Bluetooth, and a headphone jack in one player. It is identified with 16GB of storage and a USB cable in the box. Its concrete limitation is the open-box condition, which makes condition a central part of the decision. The title's English wording may also be useful for shoppers seeking that presentation. Select the NW-A55 when its named Walkman attributes matter more than Android DAP wording or an extensive audio-format list. It keeps the decision focused on Sony's player features rather than the widest specification spread.
SHANLING M3X Hi-Res DAP

SHANLING M3X is the clearest low-price route in this group, combining Bluetooth, WiFi, and 32GB in its title. It also names 3.5 mm and 4.4 mm connectivity, alongside Bluetooth, giving headphone-focused shoppers concrete connection terms to consider. The practical limitations are its used condition and its Japanese-oriented setup: units are described as defaulting to Japanese and being designed for Japanese outlets. Those details matter before choosing it for everyday listening. The M3X makes sense when the lowest listed price and the Android-and-wireless wording are more important than the broader format list attached to Sony NW-ZX707.
Fiio Snowsky Disc Portable Hi-Res Music Player

Fiio Snowsky Disc makes sense for shoppers prioritizing the wireless-and-USB language in its title: Bluetooth 5.4, WiFi, and USB AUDIO. The model is also identified as a Hi-Res music player, with pink color and new condition listed. Its important limitation is format specificity: the playable media format is listed as MP3, while Sony NW-ZX707 explicitly names a much longer set of formats. That distinction matters for a library built around formats such as FLAC, ALAC, or DSD. Choose the Fiio when its named wireless and USB emphasis is the deciding cue and MP3 is the relevant playback format.
Final recommendations by use case
- For the broadest listed audio-format coverage and a battery figure: Sony NW-ZX707 Walkman 64GB. Its MP3-to-MQA format list and up-to-25-hour battery figure define its role.
- For an Android DAP at the lower end of the price range: SHANLING M3X. Its title supplies that Android wording alongside WiFi and Bluetooth.
- For a Sony Walkman with named S-Master HX and DSEE HX features: Sony NW-A55. Its open-box condition is the main tradeoff.
- For a new-condition player emphasizing Bluetooth 5.4, WiFi, and USB AUDIO: Fiio Snowsky Disc. Its MP3 playback description should guide format expectations.