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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.

Soundcore AeroFit 2 × Best on 1 fact Sony LinkBuds Open × Best on 2 facts
Most important facts
Lowest price 90 €Amazon.de best 99 €Amazon.de
Score 8.8 8.9 best
Customer rating ★ 4.6 · 31 reviews ★ 4.7 · 40 reviews best
Active noise cancelling same on both None (assumed) None (assumed)
Weight 10 g 5.1 g
Bluetooth version 5.4 5.3
Water and dust resistance IP55 IPX4
Bluetooth codecs LDAC SBC, AAC, LC3
Multipoint same on both yes yes
Rank
Rank rank 2 of 11 with an open-ear fit rank 1 of 11 with an open-ear fit
Battery
Battery life without noise cancelling 10 h 8 h
Battery life with the case 42 h –
Fast charge time 10 min 3 min
Playback from a fast charge 4 h 1 h
Full charge time 60 min 90 min
Wireless charging yes no (assumed)
Charging port same on both USB-C USB-C
Build and fit
Form factor same on both Open-ear Open-ear
True wireless same on both yes yes
Wireless same on both yes yes
Wired connection same on both None None
Audio over USB-C same on both no (assumed) no (assumed)
Driver size 20 mm –
Fit aids Ear hooks –
Controls Touch –
Microphones 4 –
Case weight – 30.6 g
Remappable controls – Some controls
Sound
Lowest frequency 20 Hz –
Highest frequency 20,000 Hz –
Impedance 16 Ω –
Hi-Res Audio certified Hi-Res Audio Wireless –
Spatial audio no (assumed) yes
Equaliser in the app – yes
Noise cancelling
Transparency mode same on both no (assumed) no (assumed)
Hearing aid function same on both no (assumed) no (assumed)
Wireless
LE Audio no (assumed) yes
Auracast same on both no (assumed) no (assumed)
Made for same on both Any phone Any phone
Devices connected at once – 2
Google Fast Pair – yes
Wireless range – 10 m
In use
Wear detection no (assumed) yes
Voice assistants – Google Assistant, Alexa
App – Sony | Sound Connect

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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