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Comparing 2 robot vacuums

Your shortlist side by side: today’s price, our score and every fact the maker states.

Green is the best of these 2, also when they share the lead.

Audio-Technica ATH-M50x × Philips Fidelio L4 ×
Most important facts
Lowest price 153 €Amazon.de –
Score not in our ranking not in our ranking
Customer rating ★ 4.5 · 348 reviews –
Active noise cancelling None (assumed) Adaptive
Battery life with noise cancelling – 40 h
Weight 285 g 330 g
Bluetooth version – 5.3
Bluetooth codecs – SBC, AAC, LDAC
Multipoint – yes
Rank
Rank – –
Battery
Battery life without noise cancelling – 50 h
Fast charge time – 15 min
Playback from a fast charge – 5 h
Full charge time – 120 min
Charging port – USB-C
Build and fit
Form factor same on both Over-ear Over-ear
True wireless same on both no no
Wireless no yes
Wired connection 3.5 mm jack 2.5 mm jack
Audio over USB-C no (assumed) yes
Acoustic design same on both Closed-back Closed-back
Driver type Dynamic –
Driver size 45 mm 40 mm
Foldable same on both yes yes
Controls – Touch, Buttons
Warranty and support
Launched – 2023-02-07
Maker model number – L4/00
Sound
Lowest frequency 15 Hz 7 Hz
Highest frequency 28,000 Hz 40,000 Hz
Impedance 38 Ω 16 Ω
Sensitivity same on both 99 dB SPL 99 dB SPL
Equaliser in the app no (assumed) yes
Spatial audio no (assumed) yes
Hi-Res Audio certified – Hi-Res Audio
Noise cancelling
Transparency mode – yes
Wireless
Made for Any phone –
Google Fast Pair – yes
Wireless range – 10 m
In use
Wear detection – yes
Voice assistants – Siri, Google Assistant
App – Philips Headphones app

Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.

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