FiiO FD15 vs Kiwi Ears KE4: which should you buy?

Specs, scores and condensed review verdicts for the FiiO FD15 vs Kiwi Ears KE4, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.

Wired IEMs

FiiO FD15

Not yet scored

$100

Full review data

Wired IEMs

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Kiwi Ears KE4 leads on 3 of 4 measures.

FiiO FD15
Kiwi Ears KE4

HearWiki score

Sound

8.6

Value

8.6

Price (USD)

$100

$200

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Same generation

Both shipped in 2024. These are the same generation of hardware - nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price.

FD152024
KE42024

Specifications

FD15KE4

Type: Wired IEMs; Wired IEMs
Price (USD): $100; $200
HearWiki score: Not scored; 84
Released: 2024; 2024
Availability: Discontinued; Still sold new
Driver: 13.8 mm dynamic; 2DD + 2BA hybrid
Driver type: dynamic; hybrid
Driver configuration: -; 2DD + 2BA
Driver size: 13.8 mm; 10 mm
Drivers per side: 1; 4
Frequency response: 10 Hz - 40 kHz; -
Impedance: 32 Ω; 28 Ω
Sensitivity: 112 dB/mW; -
Active noise cancelling: No; No
Controls: none; -
Weight: 12 g; -
Detachable cable: Yes; Yes
USB-C: No; -
Connector: MMCX; 3.5 mm

Specification comparison of FiiO FD15 vs Kiwi Ears KE4
Spec	FiiO FD15	Kiwi Ears KE4
Type	Wired IEMs	Wired IEMs
Price (USD)	$100	$200
HearWiki score	Not scored	84 / 100 Outstanding
Released	2024	2024
Audio
Driver	13.8 mm dynamic	2DD + 2BA hybrid
Driver type	dynamic	hybrid
Driver configuration	-	2DD + 2BA
Driver size	13.8 mm	10 mm
Drivers per side	1	4
Frequency response	10 Hz - 40 kHz	-
Impedance	32 Ω	28 Ω
Sensitivity	112 dB/mW	-
Features
Active noise cancelling	No	No
Controls	none	-
Design
Weight	12 g	-
Detachable cable	Yes	Yes
USB-C	No	-
Connector	MMCX	3.5 mm

What reviewers said

FiiO FD15

The FiiO FD15 is a wired, single-dynamic-driver in-ear monitor with a 13.8mm aluminum-magnesium driver, tuned for a wide 10Hz-40kHz response. Its detachable cable uses a hybrid silver and monocrystalline copper construction with an expanded MMCX connector, offering a lightweight, comfortable fit. Priced around $100, it's a straightforward, no-frills option for listeners who prefer a pure analog connection.

Pro:Wide frequency response with detailed highs
Pro:Lightweight design (12g) for all-day comfort
Pro:Detachable MMCX cable for easy replacement

Con:No active noise cancellation
Con:No inline controls or microphone
Con:Requires a wired source with MMCX compatible cable

Kiwi Ears KE4

The Kiwi Ears KE4 is a wired hybrid IEM that offers a balanced, relaxing sound with a distinct twist on the popular 'New Meta' tuning, adding extra bass and treble sparkle. It delivers solid midrange clarity and a comfortable fit, making it a versatile choice for many genres, though its smooth presentation may not excite those seeking aggressive or highly dynamic sound.

Pro:Well-balanced hybrid tuning with rich lower mids and airy treble
Pro:Comfortable fit and broad genre versatility
Pro:Good resolution and clarity for its price

Con:Sub-bass can get overpowering at times
Con:Limited resolving power and dynamic impact
Con:Smooth tuning may feel less exciting than V-shaped alternatives

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

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