FiiO FH5s/FH5s Pro
The FH5s combines punchy, controlled bass with crisp detail and a spacious semi-open soundstage rarely heard at this level. Its three tuning switches and generous tip selection invite real tonal tailoring, while the modular cable adds everyday flexibility. Soundnews found it clean, dynamic and highly transparent—an exciting hybrid for listeners who enjoy an energetic presentation.
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Nicely Roasted
Sound Quality
86/100
Fit Comfort Isolation
86/100
Build Accessories
94/100
Value for Money
87/100
Pros
Deep, fast and tightly controlled bass delivers satisfying slam and sub-bass rumble.
Semi-open construction gives a notably wide, airy presentation for an IEM.
Three tuning switches, extensive tips and interchangeable 2.5/3.5/4.4mm plugs provide exceptional versatility.
Comfortable metal shells and a premium accessory package exceed typical expectations at the price.
Cons
Treble can sound bright, edgy or fatiguing, especially at higher volumes; the treble switch is not ideal for sensitive listeners.
Midrange body and tonal coherence are divisive, with some reviewers finding vocals thin or weightless.
Semi-open shells trade some isolation for spaciousness and allow slight sound leakage.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 86/100
The FH5s is a highly configurable, energetic hybrid with strong bass impact, open presentation and notably clear detail. Its main trade-off is a bright, upper-mid/treble-forward balance that some reviewers enjoy while others find thin, sharp or fatiguing; switch and tip selection make a meaningful difference.
Bass
91/100
Several reviewers praise deep-reaching, tactile bass with convincing slam, sub-bass rumble, speed and control. It is repeatedly described as clean and free of midrange bleed, though one reviewer found the low end less naturally weighted than preferred.
Midrange
83/100
Reviewers often hear clear, lively and forward vocals, with welcome warmth and sweetness available through the tuning options. However, the midrange is divisive: some found it overly sharp or aggressive, while others heard male vocals and instruments as too thin or lacking body.
Treble
80/100
The treble delivers abundant presence, air, shimmer and apparent detail, making the FH5s appealing to listeners who enjoy a vivid top end. Multiple reviews also identify lower-treble or upper-mid heat, occasional harshness, metallic BA timbre and short cymbal decay; it can become edgy at higher volume.
Resolution Separation
89/100
Most reviewers found the FH5s highly detailed, transparent and capable of keeping individual notes well separated in busy material. Its clean leading edges and organized presentation are widely praised, although one strongly negative assessment found certain switch settings muddy and lacking definition.
Soundstage Imaging
86/100
The semi-open design produces an unusually open and spacious presentation for the price, with reviewers hearing strong width and welcome air around instruments. Depth and pinpoint placement are less consistent: some call the stage extended in all directions, while others find it intimate, mostly lateral, or insufficiently deep.
Dynamics Coherence
84/100
The FH5s can sound punchy, snappy and entertaining, with strong low-end impact and good transient definition. Its driver integration and tonal balance depend heavily on the selected switch setting, and several reviewers felt the bass, lighter mids and vivid treble did not always blend naturally.
FIT COMFORT ISOLATION PERFORMANCE 86/100
Reviewers generally find the medium-size shells secure and exceptionally comfortable over long sessions, helped by the nozzle design and broad tip selection. The semi-open construction sacrifices some passive attenuation and introduces slight sound leakage, while insertion depth can affect seal consistency.
Seal Stability
84/100
One reviewer found the FH5s quick to settle into a snug fit, and the included range of tips offers useful scope to tailor the seal. Others advise deeper insertion for best results and note that the nozzle geometry can limit insertion depth, so fit should be checked carefully.
Comfort
92/100
Comfort is a clear strength in the available reviews. The shells are described as comfortable for hours, easy to forget in use and, by one reviewer, nearly 'heavenly' to wear.
Isolation
79/100
The semi-open housing leaks a little and does not provide the isolation expected from a fully sealed monitor. Still, Audiophile Heaven estimated roughly 15–20 dB of passive attenuation and considered it adequate for ordinary listening.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Accessories
94/100
Reviewers consistently praise the striking metal shells, polished finish and solid, premium-feeling construction. The supple low-microphonic cable, interchangeable 2.5/3.5/4.4 mm terminations, protective case and extensive selection of foam and silicone tips form an unusually practical package.
Value for Money
87/100
At roughly $259–269, Soundnews calls the FH5s easy to recommend and Currawong says FiiO has raised the game at the price. Competition in the $200–300 segment is acknowledged as intense, and the polarizing tuning means prospective buyers should audition or purchase from a seller with returns where possible.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
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Manufacturer's Description — FiiO
2 Balanced Armatures 2 Dynamic Drivers In-Ear Monitors
All-new acoustic design
Semi-open design with grand soundstage
3 sound tuning switches
3 swappable headphone plugs
2BA+2DD 12mm beryllium-plated dome+
PU gasket dynamic driver 6mm beryllium-plated dynamic driver+
TWFK-30017 balanced armature
Semi-open design for the rear cavity
Quickly relieve air pressures on the ear-leading to more comfortable and
long listening sessions
TRISHELL acoustic design Solid 3-point fixation greatly
reduces excess resonance and distortion
3 sound tuning switches Easily shuffle between higher and lower frequencies, and achieve multiple music styles
3 types of swappable earphone plugs 2.5/3.5/4.4 plugs are included in the package
to suit your needs for different devices
All rise for the return of the classic
Thanks to the excellent designs and great sound, FiiO balanced armature and dynamic driver hybrid earphones have always been highly praised and become best sellers due to positive word-of-mouth. The all-new rookie FH5s is a true upgrade from the veteran FH5, with significant advancements and innovations in all aspects including appearance, comfort, sound quality. The student has now surpassed the master.
Better sound in a brand new 2+2 architecture
A new double dynamic driver and double balanced armature acoustic architecture was developed for the FH5s. Replacing the balanced armature used for mid frequencies in the original FH5, the new mids dynamic driver provides better vocals and soundstage in the FH5s. The dual dynamic driver setup connects the bass and mids together more smoothly and coherently, as well as covers a wider range of frequencies and provides a larger soundstage. It simply creates a better sense of atmosphere and truly envelops you into the music!
· 6mm beryllium-plated dynamic mid frequency driver
The low and mid frequencies are also taken care of by beryllium-plated diaphragm dynamic drivers, which are carefully tuned to smoothly connect to the other drivers. The results are luscious yet pure vocals that are easy to get addicted to but hard to stop listening to!
· 12mm beryllium-plated dome + PU gasket dynamic low frequency driver
The third generation 12mm Tesla low-frequency dynamic driver is engineered to give extremely high-quality bass. With its rigid yet flexible polyurethane polymer surrounding gasket + beryllium-plated diaphragm dome and N52 magnets capable of 1.5 Tesla, this driver is capable of some seriously deep and potent yet controlled bass.
· Time-tested Knowles TWFK-30017 high frequency driver
Treble is handled by the Knowles TWFK-30017 balanced armature driver, which has proven to be wildly popular among music listeners. This driver is placed directly in the sound tube to be as close to the ear as possible for less high-frequency loss and better extension, giving the FH5s its exquisite treble.
Experience and expertise in tuning
Excellent materials and solid data are important parts of a good foundation for sound. FiiO headphones have been sold in more than 70 countries around the world, allowing us to accumulate a large amount of user opinion data. This data has helped us to continuously improve the sound of our headphones, and the FH5s represents our best work to date. It's easy to become a fan of its sound, but hard to get tired of it!
Fine-tuned to perfection
Within the FH5s, we have accurately calculated how each driver should focus on the low, mid, high, and ultra-high frequency response ranges for great sound. The results? Robust bass, clear mid-range vocals, and exquisite yet non-fatiguing highs and ultra-highs.
8 exciting ways to listen
3 tuning switches for lows, mids, and highs
While the default sound tuning will suit the taste of most audiophiles, there are also three tuning switches controlling the bass, mids, and treble for further customization. Whether due to listening to a certain kind of music or due to your taste, find a sound that perfectly fits you with the tuning switches.
Relieving stress to protect your hearing
The semi-open design at the rear cavity was refined through computer simulations to ensure the air pressure at the front and rear cavities are balanced – resulting in larger soundstage, more comfortable listening, as well as a natural sound.
TRISHELL Acoustic Design
Technology inspired by supercars
The FH5s employs the TRISHELL "sandwich" structural design, with the 5-axis CNC machined aluminum-magnesium alloy rear shell, body, and front covers solidly fixed together at 3 points to greatly reduce excess resonance and distortion. Just like an exotic supercar with its super-rigid chassis to maximize performance.
Magnificent at first sight
The open-air mesh guides perfectly blend with the layered "dragon scales" on the faceplate of the FH5s to give it a powerful, stunning design. Whether you choose the black and gold or silver and gold colors, the FH5s maintains its striking looks.
Impressive in-hand
The shell is made of CNC-machined aluminum-magnesium alloy, which is firm enough to even reduce the unwanted resonances within! Here, the sturdiness of the shell actually improves your music.
Massively comfortable in the ear
The third-generation ergonomic curve is optimized for a perfect fit around the human ear for an extremely comfortable experience.
One worthy upgrade！Standard FH5s VS Premium FH5s Pro
In addition to the standard FH5s, there is now also the more premium FH5s Pro – more options for more ways to listen!
FH5s standard version cable:
New interchangeable plug
Included is a cable with 4 strands of 120 wires each, made of high-purity silver-plated monocrystalline copper, braided in Litz style for purer sound. The cable comes with expanded MMCX connectors and a twist-lock interchangeable 3.5/4.4mm plugs system to further enhance your overall experience.
· Litz Type 2 braided cable
The four-strand 120 core, high-purity monocrystalline silver-plated copper cable faithfully reproduces your music, significantly enhancing your listening experience.
· A real showcase of plugs
The included twist-lock swappable audio plugs are made of 316L stainless steel, making them both durable and striking. 2.5/3.5/4.4 plugs are included so that one cable satisfies the needs of many different kinds of listeners.
· Expanded MMCX connector
The detachable cable utilizes the stable expanded MMCX connector, with blue and red markings to easily distinguish the left and right channels.
Notes:
FIIO earphones include either the new or old interchange plug. The difference lies solely in the craftsmanship, materials, and structural design of the plug, with no difference in the cable wires. Both versions are genuine. Please refer to the actual item received. Thank you for your understanding.
Old interchangeable plug
FH5s Pro cable:
Included is a cable made of high-purity silver-plated monocrystalline copper, with 19 strands of 8 wires each for a total of 152 wires. The wires are braided in Litz style and individually isolated to greatly improve the transmission efficiency of high-frequency signals for enhanced treble resolution. The cable sheath is made of transparent, environmentally-friendly German TPU to give the cable a vivid, lustrous appearance. The cable also features interchangeable 3.5/4.4mm plugs via a twist-lock system.
*Interchangeable audio jack is officially licensed from the patent by FABRILOUS.
Hi-Res Audio certified
The FH5s is Hi-Res Audio certified, a testament to its ability to present your music the way it was meant to be heard.
Rich accessories
As always, a wealth of accessories are included to give you a great experience right from the start.
earphone cable
Earphone units
Swappable plug
Carrying case HB5
balanced ear tips*3 pairs
bi-flange ear tips*1 pair
vocal ear tips*3 pairs
bass ear tips*3 pairs
foam ear tips*3 pairs
cleaning brush
manual
MMCX assist tool
Verified Dealers
Online Dealers
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Authorized dealers for FiiO FH5s/FH5s Pro
- 110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
- Acoustic Technologies — online and in-store — Montréal, Québec, Canada (website)
- Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
- Advanced MP3 Players — online and in-store — Musselburgh, Scotland, United Kingdom (website)
- All Elite Audio — online and in-store — Perry Hall, Maryland, United States (website)
- Alpha Audio Pte — online and in-store — Singapore, Singapore (website)
- Apos Audio — online and in-store — Oakland, California, United States (website)
- Audeos — online and in-store — Żywiec, Województwo śląskie (website)
- Audio 46 — online and in-store — New York, New York, United States (website)
- Audio Affair — online and in-store — Deritend, England, United Kingdom (website)
and 59 more verified dealers