Comparing 3 robot vacuums
Your shortlist side by side: today’s price, our score and every fact the maker states.
Green is the best of these 3, also when they share the lead.
Drag a model by its header to move its column, or use the arrows.
Soundcore Sleep A20 × | Soundcore P40i × Best on 2 facts | Soundcore Liberty 5 × Best on 1 fact | |
|---|---|---|---|
| Most important facts | |||
| The lowest price today at a shop that delivers to you, delivery included. A price with an asterisk comes from a shop abroad, and its delivery cost is our own estimate. Lowest price | € 149bol.com | € 58bol.com best | € 92Coolblue |
| Our own score out of 10: 60% the maker’s facts and 40% shop ratings. Price does not count. Score | best | best | |
| The average of the stars buyers give at the shops, with the number of reviews behind it. We only compare it from 20 reviews. Customer rating | – | – | ★ 4.4 · 30 reviews |
| How the headphones cancel outside noise with microphones. Hybrid uses microphones outside and inside the cup, adaptive also adjusts to the sound around you. When it matters
When it matters less
Source
| None | Adaptive | Adaptive |
| How long the headphones or the earbuds play on one charge with noise cancelling on, as the maker states it. In this comparison
When it matters
When it matters less
Source
| – | 10 h | 8 h |
| What the headphones or one earbud weigh. Lighter is more comfortable for hours at a time. In this comparison
When it matters
When it matters less
Source
| 3.1 g | – | 4.6 g |
| The Bluetooth version. A newer one connects more steadily and uses less power, if the phone has it too. In this comparison
Source
| 5.3 | 5.3 | 5.4 |
| How well they resist water and dust, as the IP code states. IPX4 survives sweat and rain, IPX7 a short dip in water. When it matters
When it matters less
Source
| IPX4 | IPX5 | IP55 |
| How the sound is packed for Bluetooth. AAC suits iPhones, aptX and LDAC carry more detail from Android phones that support them. When it matters
When it matters less
Source
| SBC, AAC | – | AAC, LDAC |
| Connected to two devices at once, such as a phone and a laptop, and switching by itself to the one that plays. When it matters
When it matters less
Source
| no | yes | yes |
| Rank | |||
| Where the model stands in our ranking, among the headphones of the same type. Rank | rank 58 of 58 with an in-ear fit | rank 5 of 58 with an in-ear fit | rank 2 of 58 with an in-ear fit |
| Battery | |||
| How long they play on one charge with noise cancelling off. In this comparison
Source
| 10 h | 12 h | 12 h |
| How long the earbuds play in total with the charges stored in their case. In this comparison
Source
| 55 h | 60 h | 48 h |
| How long a full charge takes. Source
| 120 min | – | – |
| The case or the headphones charge on a Qi pad, without a cable. Source
| no | yes | no (assumed) |
| The plug the headphones or their case charge through. Source
| USB-C | – | USB-C |
| How many minutes of charging give the playback below. In this comparison
Source
| – | 10 min | 10 min |
| How many hours of playback a short fast charge gives. In this comparison
Source
| – | 5 h | 5 h |
| Build and fit | |||
| How the headphones sit: over the ear, on the ear, in the ear canal, in the outer ear, beside the ear or on the cheekbone. Source
| In-ear | In-ear | In-ear |
| Two separate earbuds with no wire between them, charged in a case. Source
| yes | yes | yes |
| They play over Bluetooth, without a cable to the phone. Source
| yes | yes | yes |
| The plug for a cable, so you can also listen wired, for instance on a plane or with a battery that has run out. Source
| None | None | None |
| They play sound over a USB-C cable, straight from a phone or a laptop. Source
| no (assumed) | no (assumed) | no (assumed) |
| The diameter of the speaker inside. A bigger driver does not by itself mean better sound. In this comparison
Source
| 4.7 mm | 11 mm | 9.2 mm |
| What holds the earbuds in place besides the tip: a hook over the ear, a small wing in the ear or a band around the neck. When it matters
When it matters less
Source
| Wings or fins | – | – |
| How you play, pause and change the volume on the headphones themselves. Source
| Touch | Touch | Squeeze the stem |
| How many microphones the maker counts, for calls and noise cancelling together. In this comparison
Source
| 0 | 6 | 6 |
| How many sizes of ear tips come in the box. More sizes make it likelier that one seals your ear, which decides both comfort and how much noise is kept out. When it matters
When it matters less
Source
| – | – | 6 |
| Warranty and support | |||
| The warranty the maker gives in the Netherlands. Consumer law here stands apart from it and can last longer. When it matters
When it matters less
Source
| – | 2 years | – |
| Sound | |||
| The lowest tone the maker says they play. It says little about how the bass actually sounds. Source
| 20 Hz | – | – |
| The highest tone the maker says they play. Adult hearing stops well below most figures. Source
| 20,000 Hz | – | – |
| The electrical resistance. Wired headphones with a high impedance need an amplifier to play loud enough. Source
| 16 Ω | – | – |
| You can adjust bass and treble in the maker’s app. Source
| yes | yes | yes |
| Sound that seems to come from around you rather than from inside your head. Source
| no (assumed) | no (assumed) | yes |
| Certified by the Japan Audio Society for high-resolution sound, wired or, with Hi-Res Audio Wireless, over Bluetooth. Source
| – | – | Hi-Res Audio |
| Noise cancelling | |||
| Lets outside sound through on purpose, so you hear traffic or a colleague without taking them off. Source
| no (assumed) | yes | yes |
| Can work as a hearing aid for mild to moderate hearing loss, where the maker has it approved. Source
| no (assumed) | no (assumed) | no (assumed) |
| Wireless | |||
| The newer Bluetooth standard for sound, with the LC3 codec: better sound on less power, with phones that support it. Source
| no (assumed) | no (assumed) | no (assumed) |
| Can listen to a Bluetooth broadcast, such as a TV, an airport announcement or a friend sharing music. Source
| no (assumed) | no (assumed) | no (assumed) |
| Whose phones the headphones are made for. Some features, such as one-tap pairing or spatial audio, work only with that maker’s phones. Source
| Any phone | Any phone | Any phone |
| How many devices they stay connected to at once. Source
| – | – | 2 |
| Pairs in one tap with an Android phone. Source
| – | – | yes |
| In use | |||
| The music pauses when you take them off and plays on when you put them back. Source
| no (assumed) | no (assumed) | 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.


