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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.

Technics EAH-AZ40M2 × Best on 2 facts Soundcore Liberty 5 × Best on 1 fact
Most important facts
Lowest price € 84Amazon.nl best € 92Coolblue
Score 6.9 8.7 best
Customer rating ★ 4.6 · 64 reviews best ★ 4.4 · 30 reviews
Active noise cancelling Feedforward Adaptive
Battery life with noise cancelling 5.5 h 8 h
Weight 5 g 4.6 g
Bluetooth version 5.3 5.4
Water and dust resistance IPX4 IP55
Bluetooth codecs SBC, AAC, LDAC AAC, LDAC
Multipoint same on both yes yes
Rank
Rank rank 57 of 58 with an in-ear fit rank 2 of 58 with an in-ear fit
Battery
Battery life without noise cancelling 7 h 12 h
Battery life with the case 18 h 48 h
Fast charge time 15 min 10 min
Playback from a fast charge 1 h 5 h
Full charge time 120 min –
Wireless charging same on both no no (assumed)
Charging port same on both USB-C USB-C
Build and fit
Form factor same on both In-ear In-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 6 mm 9.2 mm
Case weight 35 g –
Controls Touch Squeeze the stem
Remappable controls Some controls –
Ear tip sizes in the box – 6
Microphones – 6
Sound
Lowest frequency 20 Hz –
Highest frequency 40,000 Hz –
Hi-Res Audio certified Hi-Res Audio Wireless Hi-Res Audio
Equaliser in the app same on both yes yes
Spatial audio no yes
Noise cancelling
Transparency mode same on both yes yes
Hearing aid function same on both no (assumed) no (assumed)
Wireless
Devices connected at once 3 2
LE Audio same on both no no (assumed)
Auracast same on both no no (assumed)
Made for same on both Any phone Any phone
Wireless range 10 m –
Google Fast Pair – yes
In use
Wear detection same on both no (assumed) no (assumed)
Voice assistants Siri, Alexa –
App Technics Audio 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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