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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.

Sony WH-CH520 × Best on 1 fact Marshall Major V ×
Most important facts
Lowest price € 33Amazon.nl best € 85Amazon.nl
Score not in our ranking 7.7
Customer rating ★ 4.3 · 35 reviews ★ 4.0 · 2 reviews
Active noise cancelling same on both None (assumed) None
Weight 147 g 186 g
Bluetooth version 5.2 5.3
Bluetooth codecs SBC, AAC SBC, AAC, LC3
Multipoint same on both yes yes
Rank
Rank – rank 2 of 3 with an on-ear fit
Battery
Battery life without noise cancelling 50 h 100 h
Fast charge time 3 min 15 min
Playback from a fast charge 1.5 h 15 h
Full charge time same on both 180 min 180 min
Wireless charging no (assumed) yes
Charging port same on both USB-C USB-C
Build and fit
Form factor same on both On-ear On-ear
True wireless same on both no no
Wireless same on both yes yes
Audio over USB-C same on both no (assumed) no (assumed)
Foldable no (assumed) yes
Wired connection – 3.5 mm jack
Driver type – Dynamic
Driver size – 40 mm
Controls – Buttons, Dial
Sound
Equaliser in the app same on both yes yes
Spatial audio yes no (assumed)
Lowest frequency – 20 Hz
Highest frequency – 20,000 Hz
Impedance – 32 Ω
Sensitivity – 106 dB SPL
Noise cancelling
Transparency mode same on both no (assumed) no (assumed)
Hearing aid function same on both no (assumed) no (assumed)
Wireless
Devices connected at once 2 –
LE Audio no (assumed) yes
Auracast no (assumed) –
Made for same on both Any phone Any phone
Wireless range same on both 10 m 10 m
In use
Wear detection same on both no (assumed) no (assumed)
App Sony | Headphones Connect Marshall Bluetooth

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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