Philips Fidelio L4 vs Sony WH-1000XM6: which should you buy?

On aggregated review scores the Sony WH-1000XM6 comes out ahead with a HearWiki score of 89. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Sony WH-1000XM6 - Outstanding overall at around $398.

Over-Ear

Score breakdown

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

Sony WH-1000XM6 leads on 5 of 7 measures.

Philips Fidelio L4
Sony WH-1000XM6

HearWiki score

Sound

8.1

9.0

Noise cancelling

7.5

9.6

Battery

8.8

8.1

Calls

7.1

9.6

Value

6.5

8.2

Price (USD)

$350

$400

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

The Sony WH-1000XM6 is 2 years newer, but it is 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.

Fidelio L42023
WH-1000XM620252 yr newer

Level on: Bluetooth, Top codec, LE Audio (LC3), ANC type, Multipoint pairing, USB-C, Wear detection, Transparency mode, Custom EQ, Companion app.

Specifications

Fidelio L4WH-1000XM6

Type: Over-Ear; Over-Ear
Price (USD): $350; $400
HearWiki score: 72; 89
Released: 2023; 2025
Availability: Still sold new; Sold new
Driver: 40 mm dynamic; 30 mm dynamic
Driver type: dynamic; dynamic
Driver size: 40 mm; 30 mm
Drivers per side: 1; 1
Frequency response: 7 Hz - 40 kHz; 4 Hz - 40 kHz
Impedance: 16 Ω; 48 Ω
Sensitivity: 99 dB/mW; 103 dB/mW
Bluetooth: 5.3; 5.3
Codecs: SBC, AAC, LC3, LDAC; SBC, AAC, LC3, LDAC
Multipoint pairing: Yes; Yes
Wireless range: 10 m; 10 m
Battery life: 50 h; 40 h
Battery life (ANC on): 40 h; 30 h
Full charge time: 120 min; 210 min
Quick charge: 15 min → 14 h; 3 min → 3 h
Wireless charging: No; No
Active noise cancelling: Yes; Yes
ANC type: adaptive; adaptive
Transparency mode: Yes; Yes
Companion app: Yes; Yes
Custom EQ: Yes; Yes
Wear detection: Yes; Yes
Controls: both; buttons
Voice assistant: Google Assistant, Siri; Yes
Weight: 330 g; 254 g
Water resistance: none; none
Foldable: No; -
Detachable cable: No; Yes
USB-C: Yes; Yes
Pad material: leatherette; -
Connector: 2.5 mm balanced; 3.5 mm
Balanced connection: No; -
Model code: L4/00; -
Microphones: 6; 12
Microphone type: MEMS; MEMS
Mic sensitivity: 0 dBV; -
Call noise reduction: No; -

Specification comparison of Philips Fidelio L4 vs Sony WH-1000XM6
Spec	Philips Fidelio L4	Sony WH-1000XM6
Type	Over-Ear	Over-Ear
Price (USD)	$350	$400
HearWiki score	72 / 100 Great	89 / 100 Outstanding
Released	2023	2025
Audio
Driver	40 mm dynamic	30 mm dynamic
Driver type	dynamic	dynamic
Driver size	40 mm	30 mm
Drivers per side	1	1
Frequency response	7 Hz - 40 kHz	4 Hz - 40 kHz
Impedance	16 Ω	48 Ω
Sensitivity	99 dB/mW	103 dB/mW
Wireless
Bluetooth	5.3	5.3
Codecs	SBC, AAC, LC3, LDAC	SBC, AAC, LC3, LDAC
Multipoint pairing	Yes	Yes
Wireless range	10 m	10 m
Battery
Battery life	50 h	40 h
Battery life (ANC on)	40 h	30 h
Full charge time	120 min	210 min
Quick charge	15 min → 14 h	3 min → 3 h
Wireless charging	No	No
Features
Active noise cancelling	Yes	Yes
ANC type	adaptive	adaptive
Transparency mode	Yes	Yes
Companion app	Yes	Yes
Custom EQ	Yes	Yes
Wear detection	Yes	Yes
Controls	both	buttons
Voice assistant	Google Assistant, Siri	Yes
Design
Weight	330 g	254 g
Water resistance	none	none
Foldable	No	-
Detachable cable	No	Yes
USB-C	Yes	Yes
Pad material	leatherette	-
Connector	2.5 mm balanced	3.5 mm
Balanced connection	No	-
Model code	L4/00	-
Calls
Microphones	6	12
Microphone type	MEMS	MEMS
Mic sensitivity	0 dBV	-
Call noise reduction	No	-

What reviewers said

Philips Fidelio L4

The Philips Fidelio L4 is a solid over-ear wireless headphone that balances strong sound, comfort, and long battery life with adaptive noise cancellation. While it doesn't break new ground in design or match the very top performers in ANC, it offers good value for its price.

Pro:Comfortable fit for extended listening sessions
Pro:Adaptive ANC and transparency mode for flexible use
Pro:Multipoint Bluetooth 5.3 for seamless device switching

Con:No water resistance rating
Con:Design feels less premium compared to rivals
Con:ANC performance isn't class-leading

Sony WH-1000XM6

The Sony WH-1000XM6 is a premium over-ear wireless headphone that combines adaptive active noise cancellation with a long-lasting battery and support for high-quality audio codecs. It features multipoint Bluetooth connectivity and a transparent mode, making it a versatile choice for both focused listening and everyday commutes. With a lightweight build and tactile controls, it balances comfort and functionality for extended use.

Pro:Adaptive active noise cancellation for personalized silencing
Pro:Multipoint Bluetooth 5.3 for seamless device switching
Pro:Transparency mode for ambient awareness when needed

Con:No water resistance rating for wet conditions
Con:No wireless charging option
Con:Relies on physical buttons rather than touch controls

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

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