Choosing between digital audio players comes down to one practical split: do you need a desktop hub for a larger audio system, or an Android Walkman for personal headphone listening? The FiiO R7 and Sony NW-ZX707 serve those different routines. The FiiO emphasizes desktop connectivity and streaming flexibility; the Sony emphasizes battery-powered listening and portable library access.
Quick verdict
Choose the FiiO R7 if your setup includes separate components and you want a desktop streaming player with multiple connection types. Its description identifies it as a desktop player, DAC, and amplifier, while its listed inputs and outputs support a broader system configuration.
Choose the Sony NW-ZX707 if your priority is listening through headphones, carrying a rechargeable player, and using a microSD card. Its battery is listed for up to 25 hours, and its title identifies it as a 64GB Android DAP. The listed price spread between the two is $183.96, with the Sony at the lower end.
Listed-price and feature comparison
| Product | Listed price | Notable listed distinction |
|---|---|---|
| FiiO R7 | USD 649.95 | Optical and USB inputs; digital optical, RCA, and XLR outputs |
| Sony NW-ZX707 | USD 465.99 | Headphone jack, rechargeable battery, and microSD support |
Where the FiiO R7 wins
- Desktop system flexibility: Optical and USB inputs give the R7 more ways to receive audio, while digital optical, RCA, and XLR outputs give it several ways to send audio onward.
- Streaming and high-resolution playback: Open Android 10, 4GB of RAM, and support for streaming and media applications make its desktop role more expansive. It also supports high-resolution PCM and native DSD audio signal decoding.
- Power input suitability: The listed AC input range is 100 to 240 VAC at 50/60 Hz, a concrete fit for a powered desktop component.
Where the Sony NW-ZX707 wins
- Long listening sessions: The listed battery life reaches up to 25 hours, giving the Walkman a clear advantage for routines where access to AC power is limited.
- File and wireless flexibility: It supports formats including FLAC, WAV, ALAC, AIFF, DSD, APE, and MQA, along with Bluetooth codecs such as LDAC, aptX HD, aptX, AAC, and SBC.
- Personal listening setup: Its listed audio output is a headphone jack, which keeps the comparison straightforward for a headphone-centered setup rather than a multi-output desktop chain.
Product notes
FiiO R7 HiFi Audiophile Streamer Digital Music Player DSD THX 788 ESS DAC WHITE
The FiiO R7 makes the most sense when your music player is part of a desktop chain. The title's "HiFi Audiophile Streamer" wording aligns with the description's desktop streaming player, DAC, and amplifier design, while open Android 10 supports streaming and media applications. Native DSD and high-resolution PCM decoding are useful reasons to choose it if those formats are central to your library. The limitation is equally concrete: the condition is listed as used, and the unit requires a powered desktop setup rather than presenting itself as a battery player. Its white color is also part of the listed configuration, so the R7's appeal is primarily its desktop role and connection range rather than a grab-and-go format.
Sony NW-ZX707 Walkman 64GB Hi-Res Digital Audio Player Android DAP
The Sony NW-ZX707 is a strong match for a listener who wants an Android DAP with a rechargeable battery and microSD support. The title supplies the 64GB capacity wording, while the attributes add compatibility with microSD, microSDHC, and microSDXC cards. Its format list covers common compressed files as well as FLAC, ALAC, AIFF, DSD, APE, and MQA, giving it a concrete reason to choose for a varied lossless library. The limitation is its listed headphone-jack output: unlike the FiiO's stated RCA, XLR, and digital optical connections, it is not the natural pick for a desktop chain built around multiple output types. Charging time is listed at approximately 3.5 hours.
Final choice by use case
- Choose the FiiO R7 for a desktop system where optical, RCA, or XLR output matters, or where Android streaming applications and native DSD decoding are priorities.
- Choose the Sony NW-ZX707 for headphone listening, up to 25 hours of battery life, microSD library expansion, and broad audio-format support.
- Use the price spread as the tie-breaker only after deciding which format fits your routine: the Sony's listed price is lower, while the FiiO's extra cost corresponds to its desktop-oriented input and output set rather than a portable battery feature.
