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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.

Beyerdynamic Aventho 100 × Marshall Major IV ×
Most important facts
Lowest price – 71 €Saturn
Score not in our ranking 7.4
Customer rating ★ 4.5 · 6 reviews ★ 4.5 · 936 reviews
Active noise cancelling – None
Battery life with noise cancelling 40 h –
Weight 220 g 165 g
Bluetooth version 5.4 5
Bluetooth codecs SBC, AAC, aptX Adaptive, aptX Lossless –
Multipoint same on both yes yes
Rank
Rank – rank 3 of 3 with an on-ear fit
Battery
Battery life without noise cancelling 60 h 80 h
Fast charge time same on both 15 min 15 min
Playback from a fast charge same on both 15 h 15 h
Wireless charging no (assumed) yes
Charging port same on both USB-C USB-C
Full charge time – 180 min
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
Works wired when Charging –
Acoustic design Closed-back –
Foldable same on both yes yes
Remappable controls Some controls –
Wired connection – 3.5 mm jack
Audio over USB-C – no (assumed)
Driver type – Dynamic
Driver size – 40 mm
Controls – Dial
Warranty and support
Maker model number 1001613 –
Sound
Lowest frequency same on both 20 Hz 20 Hz
Highest frequency 22,000 Hz 20,000 Hz
Impedance 48 Ω 32 Ω
Sensitivity – 99 dB SPL
Equaliser in the app – no
Spatial audio – no (assumed)
Noise cancelling
Noise cancelling control Set levels –
Transparency mode yes no (assumed)
Hearing aid function same on both no (assumed) no (assumed)
Wireless
Google Fast Pair yes –
Made for same on both Any phone Any phone
Wireless range 15 m 10 m
LE Audio – no (assumed)
Auracast – no (assumed)
In use
App beyerdynamic app –
Wear detection – no (assumed)

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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