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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.

Sennheiser ACCENTUM True Wireless × Best on 1 fact Sony WF-C510 × Best on 1 fact
Most important facts
Lowest price 92 €Amazon.de 34 €Amazon.de best
Score 8.4 best 8.3
Customer rating ★ 4.5 · 7 reviews ★ 4.2 · 46 reviews
Active noise cancelling Hybrid None (assumed)
Battery life with noise cancelling 6 h –
Weight 5.5 g 4.6 g
Bluetooth version same on both 5.3 5.3
Water and dust resistance IP54 IPX4
Bluetooth codecs SBC, AAC, aptX, LC3 SBC, AAC
Multipoint – yes
Rank
Rank rank 27 of 52 with an in-ear fit rank 35 of 52 with an in-ear fit
Battery
Battery life without noise cancelling 8 h 11 h
Battery life with the case 28 h –
Fast charge time 10 min 5 min
Playback from a fast charge same on both 1 h 1 h
Full charge time same on both 90 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 In-ear In-ear
True wireless same on both yes yes
Wireless same on both yes yes
Wired connection same on both None None
Ear tip sizes in the box 4 –
Case weight 41 g 31 g
Remappable controls same on both Some controls Some controls
Audio over USB-C – no (assumed)
Warranty and support
Launched 2024-05-06 –
Sound
Equaliser in the app same on both yes yes
Spatial audio – yes
Noise cancelling
Transparency mode same on both yes yes
Hearing aid function same on both no (assumed) no (assumed)
Wireless
LE Audio yes no (assumed)
Auracast yes no (assumed)
Made for same on both Any phone Any phone
Devices connected at once – 2
Wireless range – 10 m
In use
Wear detection – no (assumed)
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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