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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.

Nothing Ear (3a) × Best on 1 fact Sony WF-C510 × Best on 1 fact
Most important facts
Lowest price € 98bol.com € 42Amazon.nl best
Score 8.3 best 8.0
Customer rating ★ 4.2 · 3 reviews ★ 4.2 · 46 reviews
Active noise cancelling Adaptive None (assumed)
Battery life with noise cancelling 6 h –
Weight 4.5 g 4.6 g
Bluetooth version 6 5.3
Water and dust resistance IP54 IPX4
Bluetooth codecs SBC, AAC, LDAC SBC, AAC
Multipoint same on both yes yes
Rank
Rank rank 26 of 59 with an in-ear fit rank 46 of 59 with an in-ear fit
Battery
Battery life without noise cancelling 10 h 11 h
Battery life with the case 42 h –
Fast charge time same on both 5 min 5 min
Playback from a fast charge same on both 1 h 1 h
Full charge time 70 min 90 min
Wireless charging same on both no (assumed) 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 type Dynamic –
Driver size 12 mm –
Case weight 40.9 g 31 g
Controls Squeeze the stem –
Remappable controls same on both Some controls Some controls
Microphones 6 –
Warranty and support
Launched 2026-07-07 –
Sound
Lowest frequency 20 Hz –
Highest frequency 40,000 Hz –
Impedance 32 Ω –
Hi-Res Audio certified Hi-Res Audio Wireless –
Equaliser in the app same on both yes yes
Equaliser bands 8 –
Spatial audio same on both yes yes
Noise cancelling
Noise cancelling control Set levels –
Transparency mode same on both yes yes
Hearing aid function same on both no (assumed) no (assumed)
Wireless
LE Audio same on both no (assumed) no (assumed)
Auracast same on both no (assumed) no (assumed)
Google Fast Pair yes –
Made for same on both Any phone Any phone
Wireless range 15 m 10 m
Devices connected at once – 2
In use
Wear detection same on both no (assumed) no (assumed)
App Nothing X 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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