Choosing among digital audio players is really a choice between listening roles: a Walkman-style headphone player, an Android-based wireless device, or a desktop streamer with multiple connections. The four models cover a wide price range, so the right pick depends on whether your priority is format coverage, named processing features, wireless flexibility, or a fixed home setup. Start with the use case, then use the price table and decision matrix to narrow the field.
Quick take
- Sony NW-ZX707: A format-focused Walkman and Android route.
- Sony NW-A55: A Walkman-centered choice with named processing features.
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- FiiO R7: A desktop streaming player and DAC/Amp for a multi-connection audio chain.
The short version: Sony covers the Walkman brief, SHANLING takes the Android and wireless path, and FiiO is built around desktop routing. The main tradeoffs are price, condition, and whether the player belongs beside headphones or in a larger audio system.
Listed-price comparison
| Product | Listed price | Price bar |
|---|---|---|
| Sony NW-ZX707 Walkman 64GB Hi-Res Digital Audio Player Android DAP | $465.99 | |
| Sony NW-A55 Walkman Digital Audio Player Hi-Res Music MP3 English | $148.00 | |
| SHANLING M3X Hi-Res Digital Audio Player DAP Android Bluetooth WiFi 32GB Black | $137.00 | |
| FiiO R7 HiFi Audiophile Streamer Digital Music Player DSD THX 788 ESS DAC WHITE | $649.95 |
Decision matrix
- Broad format range: Sony NW-ZX707 lists formats including MP3, FLAC, ALAC, AIFF, DSD, APE, and MQA.
- Named processing features: Sony NW-A55 calls out the S-Master HX digital amplifier and DSEE HX upscaling.
- Android and connector flexibility: SHANLING M3X names Android, Bluetooth, WiFi, and 32GB, with 3.5mm and 4.4mm connectivity listed as well.
- Desktop routing: FiiO R7 is described as a desktop streaming player and DAC/Amp with optical and USB inputs plus RCA, XLR, and digital optical outputs.
- Condition tie-breaker: Sony NW-A55 is listed as open box, while SHANLING M3X and FiiO R7 are listed as used.
Product notes
Sony NW-ZX707
The Sony NW-ZX707 combines a Walkman identity with a headphone jack and Bluetooth 5.0. Its codec list includes SBC, LDAC, aptX, aptX HD, and AAC, while battery life is stated as up to 25 hours. The title also identifies Android DAP, giving shoppers a clear platform marker to weigh. At $465.99, it sits well above Sony NW-A55's listed price. That price is the main limitation for someone trying to keep the purchase near the lower end of this comparison. Choose the NW-ZX707 when its wireless codec list and Android Walkman wording fit the listening plan.
Sony NW-A55
The Sony NW-A55 centers the Walkman experience, with a headphone jack, Bluetooth connectivity, 16 GB storage, and an included USB cable. Its $148.00 price is close to the bottom of the comparison, making the model a candidate when the budget decision is between the two lower-priced entries. The concrete limitation is its explicitly stated open-box condition, which matters to shoppers who prefer a new purchase. The description also presents the device as a Hi-Res music player and identifies the NW-A55 model. Choose it for the Walkman name, straightforward wired output, and included cable.
SHANLING M3X
The SHANLING M3X has the lowest listed price at $137.00, which is its clearest reason to choose it when spending is the main constraint. The limitation is its used condition. The description adds that devices are set to Japanese by default and designed for Japanese outlets, with a suitable transformer advised for electrical appliances; those setup details may not fit every location. A headphone jack is also listed. Choose the M3X when the lower price and its Android-and-wireless model identity matter more than avoiding a used unit.
FiiO R7
The FiiO R7 is explicitly described as a desktop streaming player and DAC/Amp, so its strongest reason to choose is a dedicated audio-chain role rather than a Walkman label. The title adds HiFi Audiophile Streamer, DSD, THX 788, and ESS DAC, while the description names open Android 10 and high-resolution PCM decoding. The limitation is clear: $649.95 is the highest listed price, and the condition is used. Its AC input is listed as 100 to 240 VAC, 50 / 60 Hz, a concrete detail for a desktop setup. Choose the R7 when its desktop DAC/Amp platform is the point.
Final recommendation by use case
- For a broad-format Walkman purchase: Sony NW-ZX707 is the fit if the higher listed price works for your budget.
- For a Walkman purchase with an included USB cable: Sony NW-A55 is the more direct match, with open-box condition as the key caveat.
- For the lowest listed price: SHANLING M3X is the choice, provided its used condition and Japanese setup details suit the situation.
- For multiple desktop connection paths: FiiO R7 is the strongest match because its description centers on desktop streaming, DAC/Amp use, and varied inputs and outputs.
If headphones and a Walkman brief come first, compare the two Sony models. If the system will stay on a desk, the FiiO R7's stated desktop role is more direct; SHANLING M3X sits between those paths through its Android and wireless wording.
