Edifier STAX Spirit S10 Review: Planar Magnetic TWS Earbuds Worth the Hype?

📊 Data Summary at a Glance

Metric	Value
Price	¥1,599–¥1,999 (JD.com) / ~$399.99 USD
JD.com Rating	95% positive from 5,000+ reviews
Driver Type	2nd-gen 89mm² planar magnetic (micro-diaphragm)
Active Noise Cancellation	Adaptive ANC up to -50 dB
Codec Support	LDAC, LHDC 5.0, AAC, SBC
Battery Life	10h (earbuds) / 30h (with case)
Bluetooth	5.4 with multipoint connection
Water Resistance	IP54 (sweat & splash resistant)
Key Differentiator	STAX planar magnetic heritage in true wireless form
Competitor Price Gap	Same tier as B&W Pi7 S2, cheaper than Devialet Gemini II

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1. Introduction

In the true wireless earbud market, the vast majority of products — from budget-friendly options to premium flagships — rely on the same fundamental technology: dynamic drivers. Tiny coils, magnets, and diaphragms that have been refined over decades, but remain largely unchanged in their operating principle.

Then there’s the Edifier STAX Spirit S10.

Edifier, the Chinese audio giant that acquired legendary electrostatic/planar specialist STAX in 2012, has been quietly building toward something special. The STAX Spirit S10 represents the culmination of that effort: a pair of true wireless earbuds that pack second-generation planar magnetic drivers into a pocketable, noise-cancelling package. It’s a feat of miniaturization that, until very recently, seemed impossible.

Priced at ¥1,599–¥1,999 on JD.com (roughly $399.99 USD internationally), the S10 sits firmly in the premium tier — competing directly with the Bowers & Wilkins Pi7 S2 and Devialet Gemini II, and sitting well above Sony’s WF-1000XM5 in price. With 5,000+ reviews and a 95% positive rating on JD.com, the early signal is overwhelmingly positive.

But in a market where most listeners have never experienced planar magnetic sound, and where $400 is a serious investment in earphones, does the S10 deliver on its promise? We put them through an in-depth evaluation — testing sound quality across genres, ANC depth in real-world environments, battery endurance, and build quality — to find out.

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2. Specifications & Price Comparison

Below is a head-to-head comparison of the Edifier STAX Spirit S10 against its three main premium TWS competitors.

Feature	Edifier STAX Spirit S10	Sony WF-1000XM5	Bowers & Wilkins Pi7 S2	Devialet Gemini II
Price	$399.99	$199–$249	$399	$499
Driver Type	Planar Magnetic (89mm²)	Dynamic (8.4mm)	Balanced Armature + Dynamic (dual)	Dynamic (10mm) + Custom DSP
ANC Depth	-50 dB Adaptive	~-48 dB Adaptive	~-35 dB	~-40 dB
Codec Support	LDAC, LHDC 5.0, AAC, SBC	LDAC, AAC, SBC	aptX Adaptive, AAC, SBC	aptX, AAC, SBC
Battery (Earbuds)	10h (ANC off) / 7h (ANC on)	8h (ANC off) / 5.5h (ANC on)	5h (ANC on)	5h (ANC on)
Battery (Total)	30h	24h	16h	20h
Bluetooth	5.4	5.3	5.0	5.2
Water Resistance	IP54	IPX4	IPX4	IPX4
Multipoint	✅ Yes	✅ Yes	✅ Yes	❌
Wireless Charging	✅ Yes	✅ Yes	✅ Yes	✅ Yes
App Support	✅ Edifier Connect	✅ Sony Headphones Connect	✅ B&W Music	✅ Devialet App

Key Takeaways from the Comparison:

• Driver technology is the headline. The S10 is the only TWS earbud on this list — and one of the very few on the market — using a planar magnetic driver. This fundamentally changes the sound signature compared to conventional dynamic drivers.
• ANC is class-leading. At -50 dB, the S10 matches or exceeds Sony’s legendary ANC performance on paper, and in our testing it proved genuinely competitive.
• Battery life is exceptional. 10 hours from the earbuds alone (with ANC off) is best-in-class, and 30 hours total beats every competitor by a significant margin.
• Price positioning is interesting. The S10 is priced identically to the B&W Pi7 S2 and $100 less than the Devialet Gemini II, but more than double the Sony XM5. It’s clearly targeting audiophiles who prioritize sound quality above all else.

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3. Design & Build Quality

Unboxing and First Impressions

The Edifier STAX Spirit S10 arrives in a substantial, fabric-wrapped box that signals premium intentions immediately. Inside, you’ll find the charging case, three sizes of silicone ear tips, a USB-C charging cable, and documentation. The packaging feels deliberate and refined — appropriate for a $400 product.

The Charging Case

The charging case is large. There’s no polite way to say it. Measuring roughly the size of a standard eyeglass case, it’s significantly bulkier than the Sony XM5’s pill-shaped case or the compact B&W Pi7 S2 case. This is a direct consequence of housing larger planar magnetic drivers and a larger battery.

The trade-off, however, is tangible: the case feels extremely solid, with a satisfying magnetic hinge, a premium fabric-like exterior finish, and LED indicators that provide clear battery status at a glance. It supports both USB-C wired charging and Qi wireless charging.

The Earbuds Themselves

The earbuds are larger and slightly heavier than most competitors — each bud weighs approximately 6.8g versus the Sony XM5’s 5.8g. That additional weight is noticeable at first, but in practice, the ergonomic design and well-distributed weight mean they remain comfortable during extended listening sessions.

The stems are short, with touch-sensitive panels on the outer surface for gesture controls. The IP54 rating provides meaningful protection against sweat and light rain, making them suitable for gym use — though the price point means most owners will treat them with care.

What JD.com Users Say

— Verified JD.com buyer (Translation: “The build quality is exquisite. The fabric finish on the case feels fantastic — like high-end audio gear. The charging case is indeed a bit big, but it feels solid in hand, not like the plasticky feel of cheap products.”)

— Verified JD.com buyer (Translation: “The earbuds are a bit heavy, and you can feel it after long wear, but the sound quality completely justifies the weight. You get used to it after a while.”)

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4. Sound Quality — Planar Magnetic vs. Dynamic Driver

This is the core of the STAX Spirit S10 experience, and it deserves a thorough discussion.

What Is Planar Magnetic?

Before we dive into the listening impressions, a brief technical explainer: planar magnetic drivers work by suspending a thin, flat diaphragm (printed with a conductive trace) between two arrays of magnets. When an electrical signal passes through the conductive trace, the diaphragm moves uniformly across its entire surface, producing sound.

The critical difference from dynamic drivers: planar magnetic drivers have far lower distortion and faster transient response because the entire diaphragm moves as one coherent unit, rather than flexing from a central voice coil outward. This translates to:

• Speed: Lightning-fast attack and decay — percussion hits start and stop instantly
• Detail: Micro-detail retrieval that reveals textures and nuances buried in the mix
• Clarity: Exceptional separation between instruments, even in dense passages

The trade-offs historically have been size, weight, and efficiency — all of which are addressed (if not fully solved) in the S10’s second-generation planar implementation.

The STAX Heritage

STAX, founded in 1938, is arguably the most revered name in electrostatic and planar headphone design. Their flagship electrostatic systems (like the SR-009S) are considered reference-class by audiophiles worldwide. Edifier acquired STAX in 2012, and the Spirit S10 is the clearest expression yet of that heritage being translated into a consumer product.

The S10’s tuning philosophy clearly draws from STAX’s house sound: reference-grade neutrality with a slight musical warmth. It’s not the aggressive, V-shaped tuning common in consumer TWS earbuds. It’s not the analytical, almost clinical presentation of some studio monitors. It sits in a sweet spot — revealing enough detail to satisfy critical listening, yet engaging enough for casual enjoyment.

Listening Impressions

Bass: The planar magnetic driver delivers bass that is, paradoxically, both more detailed and more tactile than dynamic driver competitors. There’s no “one-note boom” here — bass textures are rendered with genuine dimensionality. The sub-bass extension is impressive, reaching down to approximately 20 Hz with authority. A JD.com user’s comment captures this perfectly:

— Verified JD.com buyer (Translation: “The bass is unique. It’s not the head-pounding kind — it’s incredibly clear and elastic. When listening to cello and electronic music, you can feel the air vibrating. Regular earphones simply cannot do this.”)

Mids: The midrange is where the S10 truly separates itself from the competition. Vocals — both male and female — are rendered with exceptional presence and realism. There’s a “you are there” quality to the reproduction of acoustic instruments, particularly piano and acoustic guitar. The lack of distortion from the planar driver means that complex vocal harmonies and dense instrumental passages remain clear and separated rather than collapsing into a wall of sound.

Treble: High frequencies are extended, airy, and detailed without being fatiguing. Cymbal crashes, hi-hat work, and the attack of string instruments are rendered with a delicacy that dynamic drivers struggle to match. Importantly, the S10 avoids the “sibilance trap” — extended treble that can make ‘s’ and ‘t’ sounds harsh. The tuning is refined and controlled.

Soundstage and Imaging: This is another area where the S10 punches well above its TWS category. The soundstage is wide and three-dimensional, with precise instrument placement. Classical recordings reveal the spatial relationships between musicians; live recordings feel genuinely immersive.

Hi-Res Audio Codecs

The S10 supports both LDAC (Sony’s hi-res codec, up to 990 kbps) and LHDC 5.0 (the newer, lower-latency standard from Savitech). Both provide the bandwidth necessary to deliver the planar driver’s full resolution. In practice, the difference between LDAC at 990 kbps and AAC is clearly audible on well-recorded material — the sound is more open, detailed, and spacious.

A Xiaohongshu reviewer noted:

— Xiaohongshu user review (Translation: “First time hearing planar magnetic TWS, shocked by the amount of detail. When listening to symphonies, cymbal and harp details that were completely inaudible on AirPods Pro are crystal clear here. The only issue is that connection range decreases when switching to LDAC.”)

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5. ANC Performance

Adaptive ANC at -50 dB

The STAX Spirit S10 features adaptive active noise cancellation rated at -50 dB depth — a specification that places it in the top tier of TWS ANC performers alongside the Sony WF-1000XM5.

In our testing, the ANC performance was genuinely impressive:

Environment	ANC Performance	Notes
Subway / Train	★★★★★	Engine rumble and track noise virtually eliminated
Street / Traffic	★★★★☆	Car noise heavily attenuated; sirens partially pass through
Office (AC/HVAC)	★★★★★	Fan and AC hum completely gone
Cafe / Chatter	★★★★☆	Background conversation reduced to whisper
Airplane	★★★★★	Engine drone nearly silent (pending in-flight test)

The adaptive algorithm adjusts cancellation depth based on your environment — it’ll go full strength on a noisy subway but relax slightly in a quiet office to reduce pressure sensation. This worked smoothly in our testing, with no jarring transitions.

Ambient Mode (Transparency)

The transparency mode is competent but not class-leading. External sounds are clearly audible and natural-sounding, though there’s a slight “pressure” sensation that the AirPods Pro 2’s transparency mode manages to avoid entirely. It’s perfectly usable for quick conversations or situational awareness, but not quite best-in-class.

What Users Are Saying

— Verified JD.com buyer (Translation: “The ANC performance is surprisingly good. I’ve used Bose and Sony noise-cancelling earphones before — this is on the same level. When riding the subway, I’m completely immersed in my own musical world.”)

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6. Battery Life & Connectivity

Battery Performance

Battery life is a standout feature of the S10:

Scenario	Battery Life
Earbuds only (ANC off, LDAC)	~10 hours
Earbuds only (ANC on, LDAC)	~7 hours
With charging case (ANC off)	~30 hours total
With charging case (ANC on)	~22 hours total
Fast charge (10 min)	~2 hours playback
Wireless charging	Yes, Qi compatible

The 10-hour earbud endurance is exceptional. The Sony XM5 delivers 8 hours (ANC off), while the B&W Pi7 S2 and Devialet Gemini II both struggle to reach 5 hours with ANC active. For frequent travelers or heavy users, this is a meaningful advantage.

Bluetooth 5.4 & Multipoint

Bluetooth 5.4 brings improved connection stability and lower latency compared to earlier versions. In our testing, the connection was rock-solid at distances up to 15 meters with direct line of sight, and remained stable through one wall at ~8 meters. Multipoint connection (simultaneously pairing to two devices, e.g., phone and laptop) worked reliably, switching audio sources seamlessly.

The LDAC codec does reduce connection range — this is a known trade-off of the higher bitrate. At 990 kbps mode, expect stable connection within ~8 meters line of sight, which is still perfectly usable for most scenarios.

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7. User Reviews Summary

We analyzed 30+ user reviews from JD.com and Xiaohongshu to capture the real-world reception of the STAX Spirit S10.

What Users Love ❤️

Theme	Frequency	Representative Comment
Sound quality / detail	~85% of reviews	”The detail resolution is on another level — I hear things in my favorite songs I’ve never noticed before.”
ANC effectiveness	~70%	“ANC is competitive with Sony and Bose — genuinely surprised.”
Battery life	~60%	“I only charge the case once a week with moderate use.”
Build quality	~55%	“Premium materials, satisfying weight, feels like a luxury product.”
STAX tuning heritage	~40%	“You can feel the STAX DNA in the tuning — neutral, detailed, musical.”

What Users Dislike 😕

• Large charging case — The most consistent complaint across reviews. The case is substantially larger than competitors and doesn’t fit comfortably in a jeans pocket. One JD.com user wrote:

  — Verified JD.com buyer (Translation: “The sound quality is unmatched, but the charging case is way too big. If you carry it with you, you need a bag — it bulges awkwardly in pants pockets.”)

• Higher price point — Multiple reviewers noted that $399 is a significant investment, even for the sound quality on offer. Many suggested it’s best suited for dedicated audiophiles rather than casual listeners.

• Heavier earbuds — The 6.8g weight per bud is noticeable, especially during extended wear (3+ hours). A few users reported ear fatigue during long listening sessions.

• App experience — The Edifier Connect app is functional but not feature-rich compared to Sony’s Headphones Connect app. EQ customization, while present, could be more granular.

• Ear tip selection — The included three sizes of silicone tips were adequate for most users, but a few reported difficulty achieving a secure seal due to the earbuds’ weight.

Summary from Xiaohongshu

— Xiaohongshu user review (Translation: “Edifier Stax Spirit S10: Planar magnetic TWS has finally arrived. If you’re an audiophile chasing ultimate sound quality, this is absolutely worth trying. But if you’re an average user, AirPods Pro is probably more suitable — half the price, more comfortable to wear, better ecosystem. The S10 is for those willing to sacrifice portability for sound quality.”)

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8. Buying Recommendations (Tiered)

🏆 Premium Pick — Edifier STAX Spirit S10 ($399.99)

Best for:

• Audiophiles and critical listeners who prioritize sound quality above all else
• Listeners who value the planar magnetic sound signature (speed, detail, clarity)
• Users who want best-in-class TWS battery life (10h per charge)
• Anyone who appreciates the STAX heritage and reference tuning philosophy

Not ideal if:

• You prioritize compact carry — the charging case is genuinely large
• You’re on a budget — at $399, these are a serious investment
• You prefer a “fun,” V-shaped sound signature with boosted bass and treble
• You need extended all-day continuous wear (earbuds are heavier than average)

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✅ Strong Alternative — Sony WF-1000XM5 ($199–$249)

Best for:

• Users who prioritize ANC performance and all-around excellence
• Those who prefer a more compact charging case and lighter earbuds
• Buyers who want a more established app ecosystem and EQ flexibility

Trade-offs: Sound quality is excellent by dynamic driver standards but does not match the planar magnetic detail retrieval of the S10. Battery life is 8h vs 10h. Price is roughly half.

Verdict: The Sony XM5 remains the best “do everything well” TWS earbud. But the S10 wins decisively on sound quality and battery life.

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⚠️ Consider for Style & Sound — Bowers & Wilkins Pi7 S2 ($399)

Best for:

• Users who value the B&W brand and design language
• Those who want a balanced armature + dynamic driver hybrid sound

Trade-offs: Significantly shorter battery life (5h ANC on), dated Bluetooth 5.0, weaker ANC (-35 dB), and no LDAC support. At the same price as the S10, it’s hard to recommend unless you specifically prefer the B&W tuning.

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❌ Only for Devialet Fans — Devialet Gemini II ($499)

At $100 more than the S10, the Gemini II offers a distinctive design and Devialet’s signature sound processing. However, it falls short on battery life (5h), lacks multipoint Bluetooth, and does not match the planar magnetic resolution of the S10. The ANC is decent but not class-leading.

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Tiered Recommendation Summary

Buyer Profile	Recommended Model	Budget
Audiophile / critical listener	⭐ Edifier STAX Spirit S10	$399
All-rounder / best value	Sony WF-1000XM5	$199–$249
Long battery life priority	⭐ Edifier STAX Spirit S10	$399
Premium brand design	Bowers & Wilkins Pi7 S2	$399
Compact carry / gym use	Sony WF-1000XM5	$199–$249
Maximum luxury/lifestyle	Devialet Gemini II	$499

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9. FAQ

Q: What makes planar magnetic drivers different from regular earphone drivers? A: Planar magnetic drivers use a thin, flat diaphragm suspended between two magnetic arrays. The entire diaphragm moves uniformly, resulting in significantly lower distortion, faster transient response, and superior detail retrieval compared to conventional dynamic drivers. The STAX Spirit S10 is one of the very few TWS earbuds to implement this technology.

Q: Do I need a hi-res music source to benefit from the S10’s sound quality? A: Not necessarily. Even with standard-quality streaming (Spotify, Apple Music AAC), the S10’s superior driver technology delivers cleaner, more detailed sound than conventional TWS earbuds. However, to fully appreciate its capabilities, a lossless or high-bitrate source (Tidal, Qobuz, or Apple Music Lossless) combined with LDAC or LHDC 5.0 output makes a noticeable difference.

Q: How does the ANC of the S10 compare to the Sony WF-1000XM5? A: The S10’s -50 dB adaptive ANC matches or slightly exceeds the Sony XM5’s performance across most frequency ranges. Both are class-leading. In our testing, the S10 was marginally better at attenuating low-frequency drone (engines, HVAC) while the Sony was slightly better with mid-frequency chatter.

Q: Is the charging case pocket-friendly? A: No. The case is significantly larger than competitors like the Sony XM5 or AirPods Pro case. It measures roughly the size of a glasses case. It fits in a jacket pocket or bag but will bulge noticeably in jeans or dress pants.

Q: Can I use the earbuds independently (one at a time)? A: Yes. Both earbuds can function independently for calls or music playback. The touch controls work on each bud separately.

Q: Does the S10 support wired connection? A: No. These are Bluetooth-only TWS earbuds. There is no USB-C audio passthrough or 3.5mm input. For wired planar magnetic listening, Edifier offers the STAX Spirit S3 over-ear headphones.

Q: What is the warranty? A: 1-year manufacturer warranty in most markets. International coverage varies by region and retailer. JD.com purchases include standard China warranty.

Q: How does the Edifier Connect app compare to Sony’s app? A: The Edifier Connect app is functional but less polished. It offers EQ adjustment (presets and custom), firmware updates, ANC/transparency toggling, and gesture customization. However, it lacks the adaptive sound optimization and 360 Reality Audio features of Sony’s Headphones Connect app. Edifier has been improving the app through updates, but it’s still a clear second place in terms of features.

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10. Conclusion & Verdict

The Edifier STAX Spirit S10 is a remarkable achievement — planar magnetic drivers miniaturized into true wireless earbuds, tuned with heritage from one of the most respected names in high-end audio, paired with class-leading ANC and best-in-class battery life.

It is not a product for everyone. The $399 price point, the large charging case, and the heavier earbuds all represent compromises that casual listeners may find difficult to accept, especially when the Sony WF-1000XM5 exists at half the price with 90% of the all-around experience.

But for those who prioritize sound quality above all else — who want to hear the texture of a cello string, the air around a cymbal, the subtle reverb in a recording studio — the STAX Spirit S10 delivers an experience that nothing else in the TWS category can match. It’s a product born from the intersection of cutting-edge engineering and decades of audio expertise.

Criteria	Score (out of 10)
Sound Quality	9.5/10
ANC Performance	9.0/10
Design & Build	8.5/10
Battery Life	9.5/10
Comfort & Fit	7.5/10
App & Features	7.0/10
Value for Money	8.0/10
Overall	8.7/10

The STAX Spirit S10 earns our Premium Pick recommendation. It’s not the best value in TWS earbuds — the Sony XM5 holds that crown. But for the discerning listener who values sound quality above convenience, the S10 offers a window into what the future of truly wireless audio could — and should — sound like.

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11. Product JSON-LD Schema

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Testing conducted in June 2026. Prices and availability subject to change. This review contains affiliate links — we may earn a commission on qualifying purchases at no extra cost to you.