🏷 TL;DR
- Product: Sony NW-ZX900 Walkman — next-generation mid-to-high-end DAP in the ZX series
- Status: Geekbench benchmark leak; no official announcement from Sony yet
- Core Upgrades: Android 16 + 8GB RAM + Snapdragon 4nm SoC — roughly 2.25× the performance of ZX707
- Expected Launch: Q2–Q3 2026
- Pricing Reference: Previous-gen ZX707 HK authorised price HK$6,980; new model estimated HK$7,000–8,500 (extrapolated from previous-gen pricing)
- Kaia’s Take: The spec bump is great news for Android DAP users, but the ZX series’ biggest problem has never been benchmark scores — it’s the region-based power cap and the 48kHz/16-bit limitation on third-party apps
📝 Introduction
The existence of Sony’s next ZX-series Walkman has been confirmed by Geekbench benchmark entries.
In early December 2025, a set of benchmark results appeared in the Geekbench database under the name “Sony NW-ZX900Series” — 13 runs completed within just 1–2 days. This density is strikingly different from past Sony Walkman leaks, which typically surfaced with just 1–2 isolated runs. It looks more like a deliberate effort to get the data noticed.
As of now, Sony has made no official announcement, product page, FCC certification, or pre-order information available. All analysis in this article is based on Geekbench leaked data, Walkman community speculation, and Sony’s historical ZX-series product cadence.
📋 Core Specs
Confirmed (from Geekbench Leak)
- Model: NW-ZX900Series
- Internal Codename: PDX-2000 / ICX-1303
- OS: Android 16
- SoC: Qualcomm 4nm (motherboard codename “volcano” — likely one of: Snapdragon 6 Gen 4 / 7s Gen 3 / 7s Gen 4)
- CPU: 8-core — 4 cores @ 1.80 GHz + 4 cores @ 2.02 GHz (4+4 configuration)
- GPU: Adreno 810
- RAM: ~8GB (Geekbench reports 7.29GB)
- Geekbench 6: Single-core ~790 / Multi-core ~2,333
Speculative (Extrapolated from ZX Generational Trends)
- Storage: 64GB + microSD (expected to follow ZX707 scheme)
- Display: ~5-inch 1280×720 IPS
- Output: 3.5mm single-ended + 4.4mm balanced
- DAC: S-Master HX (unconfirmed; safest assumption)
- Wireless: Wi-Fi 5, Bluetooth (LDAC / aptX HD / aptX / AAC / SBC)
- USB: USB-C (USB 3.2 Gen 1)
⚙️ NW-ZX707 vs. NW-ZX900
| Spec | NW-ZX707 | NW-ZX900 (Leaked) |
|---|---|---|
| OS | Android 11 (→14 update) | Android 16 |
| SoC | Snapdragon 665 (11nm) | Snapdragon 4nm (likely 6 Gen 4) |
| RAM | 4GB | 8GB LPDDR4X |
| Geekbench 6 Single | ~350 | ~790 (+125%) |
| Geekbench 6 Multi | ~1,350 | ~2,333 (+73%) |
| Storage | 64GB + microSD | 64GB + microSD (speculative) |
| Display | 5″ 1280×720 | 5″ 1280×720 (speculative) |
| Audio Output | 3.5mm SE + 4.4mm Bal | 3.5mm SE + 4.4mm Bal (speculative) |
| Weight | 197g | Estimated ~205g (slightly heavier) |
| HK Authorised Price | HK$6,980 | TBC (estimated HK$7,000–8,500) |
🔧 Technical Breakdown: What the Geekbench Leak Tells Us
1. The SoC Identity Puzzle
The motherboard codename “volcano” is one of the most interesting clues in this leak. According to analysis by The Walkman Blog, this codename maps to three possible Qualcomm chips:
- Snapdragon 6 Gen 4 (4nm, announced February 2025) — 1+3+4 configuration, up to 2.3 GHz
- Snapdragon 7s Gen 3 (4nm, August 2024) — 1+3+4 configuration, up to 2.5 GHz
- Snapdragon 7s Gen 4 (4nm, August 2025) — 1+3+4 configuration, up to 2.7 GHz
The key puzzle: the ZX900’s Geekbench entry shows a 4+4 configuration (4 cores @ 1.80 GHz + 4 cores @ 2.02 GHz), whereas all three candidate SoCs use a 1+3+4 configuration. The most likely explanation is that Sony merged the Prime + Performance cores into a unified Performance cluster (clock-limited to 2.02 GHz) while retaining the 4-core Efficiency cluster (1.80 GHz). This approach is consistent with Sony’s historical Walkman clock-limiting strategy — trading a bit of peak performance for longer battery life.
The internal codename ICX-1303 has also been uncovered, logically following the A300’s ICX-1301 and the ZX700’s ICX-1302.
2. RAM Doubling: The Upgrade Android DAP Users Need Most
The jump from 4GB to 8GB RAM may be the single biggest quality-of-life improvement for ZX900 users. An Android Walkman isn’t a closed system that only plays local files — it runs streaming apps like Tidal, Apple Music, Qobuz, and Spotify. 4GB RAM on the ZX707 was already noticeably strained; open a few apps and things start to stutter.
8GB RAM means smoother multitasking, more stable streaming, and a longer Android update support lifecycle. This is a more practical upgrade than any DAC swap — it addresses the daily user experience directly.
3. Android 16: The Biggest Software Leap in Walkman History
The ZX707 shipped with Android 11 and was later updated to Android 14. The ZX900 jumps straight to Android 16 — the largest single OS leap in Sony Android Walkman history. That said, a newer Android version doesn’t inherently solve users’ core complaints — third-party streaming app sample-rate limitations still depend on how Sony implements the audio path, not on the Android version number.
💡 Kaia’s Take
The Spec Bump Is Table Stakes — Sony Still Hasn’t Addressed the Real Issues
From a product designer’s perspective, what the ZX900 Geekbench leak reveals isn’t an exciting new product — it’s an expected iterative update.
Snapdragon 4nm + 8GB RAM + Android 16 — these are the baseline specs a mid-to-high-end DAP should have in 2026. The ZX707 was running a 2019-era Snapdragon 665 (11nm); moving to a 4nm chip in 2026 is simply catching up on lagging progress, not pulling ahead.
The issues that genuinely frustrate ZX-series users? Geekbench answers exactly none of them:
- Region-based power cap: The Japanese ZX707 outputs 50+50 mW (single-ended) / 230+230 mW (balanced), but the US, EU, Canadian, and Singapore versions are capped at 0.4–1.1 mW @ 32Ω. Hong Kong units are similarly restricted. If the ZX900 doesn’t address this, no amount of RAM matters for HK users.
- Third-party app sample-rate limitation: Tidal and Qobuz on the ZX707 are locked to 48kHz/16-bit output — only Sony’s own Music Player app can utilise the full 32-bit/384kHz pipeline. Android 16 offers no guarantee this will change.
- Gmail notification volume coupling: ZX707 users have long complained that notification sounds cannot be separated from media volume — a Gmail alert can suddenly blast through your listening session. This is a long-standing Android Walkman design flaw.
Sony’s “testing the waters” behaviour on Geekbench (13 runs in 2 days is not normal) suggests they may be feeling market pressure. The FiiO M23 retails at HK$5,499 (aluminium version) with an AK4191EQ + AK4499EX flagship DAC combo plus THX AAA 78+ amplification. The HiBy R6 Pro II 2025 edition is priced at US$699 (~HK$5,460), packing dual CS4308P flagship DACs. If the ZX900’s HK price exceeds HK$7,000, Sony will need to prove that S-Master HX + the Android experience justifies that premium.
📋 Specifications
| Spec | NW-ZX900 (Geekbench Leak) |
|---|---|
| Model | Sony NW-ZX900Series |
| Internal Codename | PDX-2000 / ICX-1303 |
| OS | Android 16 |
| SoC | Qualcomm 4nm (volcano motherboard; likely SD6 Gen 4 / SD7s Gen 3 / SD7s Gen 4) |
| CPU | 8-core (4×1.80 GHz + 4×2.02 GHz) |
| GPU | Adreno 810 |
| RAM | ~8GB (7.29GB reported) |
| Geekbench 6 Single | ~790 |
| Geekbench 6 Multi | ~2,333 |
| Audio Output | 3.5mm single-ended + 4.4mm balanced (speculative) |
| DAC | S-Master HX (speculative) |
| Bluetooth Codecs | LDAC / aptX HD / aptX / AAC / SBC (speculative) |
| Wireless | Wi-Fi 5 (speculative) |
| USB | USB-C USB 3.2 Gen 1 (speculative) |
| Availability | Not yet announced; expected Q2–Q3 2026 |
✅❌ Confirmed vs. Unconfirmed
| ✅ Confirmed | ❌ Unconfirmed |
|---|---|
| Android 16 OS | DAC architecture (S-Master HX or new solution) |
| 8GB RAM | Storage capacity and microSD support limit |
| Qualcomm 4nm SoC (Adreno 810 GPU) | Display size and resolution |
| Internal codename PDX-2000 / ICX-1303 | Battery capacity and runtime |
| Geekbench performance ~2.25× ZX707 single-core | Region-based power cap policy |
| Third-party app sample-rate limitation | |
| Pricing and regional availability | |
| 5G / camera / speaker extras |
🎯 Who Is It For?
| 👍 Worth Considering | 👎 Wait and See |
|---|---|
| ZX707 users looking to upgrade (3-year wait) | HK authorised buyers who need high power output (region cap likely still in place) |
| Android DAP users who value streaming app experience | Those chasing max DAC hardware (FiiO M23 at HK$5,499 already offers AK4191EQ+AK4499EX) |
| Anyone needing smoother Android multitasking | Buyers with a sub-HK$5,500 budget (too many strong alternatives) |
| Deep Walkman ecosystem users | People who mainly play local files and are happy with their current DAP |
🏁 Verdict
The NW-ZX900’s Geekbench leak confirms that a ZX-series generational update is happening. The trio of 8GB RAM, Android 16, and a 4nm SoC is a real, tangible improvement to the daily Android DAP experience — particularly the doubled RAM and modernised processor.
But Sony’s biggest test here isn’t about numbers on a spec sheet. The ZX series’ most persistent problems — region-based power caps and streaming app sample-rate restrictions — remain completely unaddressed. If the ZX900 not only ups the specs but finally solves these multi-generational pain points, then it deserves its premium. Otherwise, in a 2026 where HK$5,499 buys you a flagship DAC stack, the ZX900 is just a smoother Android device — and it might not sound much better than the ZX707.
What we should be waiting for isn’t just a faster Android — it’s a Sony that’s finally willing to face its users’ core demands head-on.
❓ FAQ
🔹 What’s new on the NW-ZX900 vs. the ZX700 series?
Based on the leak, the ZX900 upgrades to 8GB RAM, Android 16, and a significantly faster processor. Expect a noticeable improvement in DSP processing capability and overall system responsiveness.
🔹 When will it be officially announced?
Sony has not yet announced an official launch date. Based on past ZX-series update cycles, an announcement within the next 3–6 months is likely.
🔹 How much will it cost?
The current NW-ZX707 retails at HK$6,980 in Hong Kong. As the next-generation model, the ZX900 is expected to be priced similarly or slightly higher — likely in the HK$7,000–8,500 range.
🔹 What are the advantages of an Android DAP?
Android lets you install streaming apps (Tidal, Apple Music, Qobuz, etc.) directly on the device — no need to rely on a computer for file transfers. Sony applies its own optimisations to the audio path for better sound quality.
🔹 Is it worth waiting for the ZX900?
If you’re not in a rush, waiting for the ZX900’s official reveal to compare specs and pricing is the smart move. The ZX700 series remains a solid choice, and its price may drop once the ZX900 launches.
🔗 More Info
- Headphonesty: Sony NW-ZX900 Walkman In-Depth Report
- The Walkman Blog: Geekbench Leak Analysis
- Head-Fi: NW-ZX900 Community Discussion Thread
- Geekbench 6 Raw Benchmark Data
