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SoundPEATS Capsule3 Pro Review

Last updated: 4 months ago
11 min read
SoundPEATS Capsule3 Pro earbuds on a stone

SoundPEATS Capsule3 Pro promise high-resolution audio and impressive ANC for only $60. However, their performance is more in line with their price.

I always look forward to testing SoundPEATS headphones since they have never disappointed me. But that’s about to change with the Capsule3 Pro.

Let’s be clear; SoundPEATS Capsule3 Pro aren’t bad. However, they focus too much on features and forget about the basics: sound quality. And with fierce competition breathing down their neck, they have a tough job convincing you to purchase.

That said, there are some positive aspects of these earbuds that we shouldn’t dismiss. Find out in more detail below.

Or jump straight to better alternatives.


We test and evaluate headphones using a standardized 9-point methodology. When you buy through links on our site, we may earn a commission. Learn more.

Pros & Cons:

  • Good ambient sound mode & ANC performance
  • Suitable for mobile gamers thanks to effective Game Mode
  • Stable & comfy enough for sportspeople & gym-goers
  • Low battery life of 4 hours per charge with ANC
  • Sound quality doesn't live up to "hi-res audio" expectations

Category ratings:

By HeadphonesAddict
User Ratings: 9
Our rating
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User rating
  • 3.5
  • 3.3
  • 3.1
  • 3.5
  • 3.9
  • 3.2
  • 3.4
  • 3.5
  • 3.8
CONTENTS (show more)


    Star Rating
    3.0 Good

    SoundPEATS Capsule3 Pro sound rather loose throughout all frequency regions, with thin vocals and uneven midrange. EQ helps a bit, but it doesn’t let you fix the problematic areas.

    Check the SoundPEATS Capsule3 Pro – A/B sound test:

    SoundPEATS Capsule3 Pro Sound Quality Test – HeadphonesAddict

    Learn how to understand sound comparisons.

    From SoundPEATS H1, Sonic, Air3 Deluxe, and Air3 Deluxe HS, all deliver a relatively balanced sound out of the box, or they let you fix it with custom EQ.

    However, the Capsule3 Pro are tuned in a way you can’t do much about it. Or with other words, the app doesn’t give you the freedom to do so. More on that later.

    In the end, you’re left with an okay-ish sound that might appeal to the general public because it’s loud and has bass. However, it lacks everything else that makes music listening a journey.

    SoundPEATS Capsule3 Pro Frequency Response

    SoundPEATS Capsule3 Pro on vs. off comparison
    Earbuds have a strong bass presence and a peak at 5kHz, which you can’t turn down with provided EQ.

    Bass: Punchy but unrefined

    Lower frequencies are elevated 11dB above the neutral target, and the boost extends from 20Hz to 200Hz, where the curve eventually flattens.

    That’s quite evident in the sound itself, which gets muddy fast. There’s very little detail and nuances in the bass, so apart from the punch and rumble, it doesn’t provide much information.

    Playing with custom EQ inside the app helps relax the lower bass and gives it more control.

    However, since the app only lets you adjust the sub-bass, you still get occasional warmth from the upper bass, which disrupts the balance in the sound.

    Midrange: Uneven and thin

    Similar issues continue into the midrange, where there’s a boost at 1.5kHz by 7dB and at 5kHz by 12dB. That’s more than enough to throw the mids off balance.

    Consequently, instruments and vocals are pushed upfront in the mix and are overly loud compared to other sounds.

    SoundPEATS Capsule3 Pro earbuds on a rock
    The two peaks in the middle of the frequency response make Capsule3 Pro loud and thin.

    Since some parts of the sound are more boosted than others, the vocals sound uneven and thin—similarly, the instruments, where electric guitars can occasionally get overly distorted.

    You can fix some of the unevenness using the EQ, but thin vocals remain. Also, you might expect some sibilance. It isn’t piercing, but it’s there.

    Treble: Lovely shimmer but could use more presence

    The treble is the best part of the SoundPEATS Capsule3 Pro sound. High frequencies are smooth and non-fatiguing, with a decent texture.

    Dip at 9kHz is the right move, but there could be more presence at 11kHz, which would make the treble stand out more.

    Instead, boosts in other frequencies overpower the cymbals, which get lost in the mix during busy tracks. Applying a more relaxing EQ help them breathe and become airier.

    SoundPEATS Capsule3 Pro Custom EQ & Presets Comparison – HeadphonesAddict

    Using custom EQ settings even helps to “enlarge” the soundstage a bit. Since it makes the sound less congested, you get a better picture of where the sounds are coming from.

    On the other hand, imaging is only decent. You know the sound is coming from the left or right channel, but you can’t quite tell its precise position.

    Custom audio equalizer

    Our first introduction to SoundPEATS app was when testing the Air3 Deluxe. For those earbuds, custom EQ offered 7 frequency bands with +/-3dB boost or decrease.

    Next, the Air3 Deluxe HS offered a much more helpful 10-band EQ with a +/-6dB boost. Most importantly, all band frequencies were right where we wanted them to be to correct the sound.

    In Capsule3 Pro, you get 9-band EQ with +/-6dB, which sounds good, but the band frequencies are all over the place, preventing you from making the sound better.

    SoundPEATS Capsule3 Pro custom EQ
    Using this custom EQ helps a little, but it doesn’t resolve the most problematic frequencies.

    For example, you want to boost the bass, but you only have a 20Hz band to play with, and the next one is at 250Hz. That means that lowering the 20Hz doesn’t reduce the upper bass.

    We’re unsure why SoundPEATS constantly changes the EQ interface instead of keeping the one from Air3 Deluxe HS, which is spot on. There may be DSP limitations for each earbud model, but it’s frustrating, nonetheless.

    Check out similar headphones:

    Comfort & Fit

    Star Rating
    4.0 Great

    SoundPEATS Capsule3 Pro are overall quite comfortable and remain stable during workouts. But their relatively big housing makes you constantly aware that something is in your ears.

    SoundPEATS Capsule3 Pro follow a similar design to Apple AirPods Pro, with a bean-shaped upper part and a stem that faces your mouth.

    Silicone ear tips are also slightly oval to better fit into your ear canal. You get 3 different sizes, all of which are relatively big, so users who usually wear smaller sizes might feel some pressure.

    SoundPEATS Capsule3 Pro nozzle and tips
    The included silicone tips are similar in size, so you can use small ones even if you normally wear medium size.

    Returning to the bean-shaped housing, it’s on the bigger side, so you feel it inside your ears. It isn’t as intrusive as JBL Reflect Mini NC, so you shouldn’t experience pain after long listening sessions.

    However, because it touches your ears from all sides, you’re always aware you have earbuds in your ears. It’s strange because they aren’t bigger than EarFun Air Pro 3, but we still notice them more.

    On the other hand, SoundPEATS Capsule3 Pro provide a great stable fit. While they can’t beat ear hooks or dedicated sports earbuds, you can safely use them during workouts.

    We made our head-shaking test, and the earbuds didn’t move much. Moreso, they didn’t lose the seal, so you don’t need to readjust them constantly.


    Star Rating
    3.5 Almost Great

    SoundPEATS Capsule3 Pro have a solid feel and looks, with a thicker hinge on the case to ensure some ruggedness. Buds are rated for an IPX4, which is enough to use in the gym.

    Earbuds are made mostly of hard plastic, except for the metal mesh in the nozzle and a microphone grill at the top. They feel solid in hand without any visible weak spots.

    SoundPEATS Capsule3 Pro mic grill
    Don’t worry, the holes are small enough so the water doesn’t get inside.

    It looks like Capsule3 Pro are glued together from 5 or even 6 pieces, which increases the chance of potentially breaking open. That said, you would truly have to abuse them to make that happen.

    To ensure protection from liquids, SoundPEATS tested them for an IPX4 rating. That means they can survive sweat and light water splashes (rain) but not showering or swimming. If you want that, look for the best waterproof headphones.

    Moving to the charging case, it’s also made of plastic but feels dense and better than the one in SoundPEATS Air3 Deluxe HS, which sell at a similar price.

    Its lid firmly holds itself shut, so it won’t accidentally open while in the bag or pocket. The hinge is also quite thick, which should ensure better drop protection.

    SoundPEATS Capsule3 Pro earbuds in case
    The charging case feels reassuring enough for everyday use thanks to a thicker lid’s hinge.

    Still, the case isn’t water resistant, so keep it away from moisture, like your sweaty clothes and towel after a workout. Also, it’s pretty big, creating a noticeable bulge in your pocket.


    Star Rating
    3.0 Good

    SoundPEATS Capsule3 Pro can squeeze 4 hours of battery life with ANC enabled, which is the lowest among all ANC earbuds we’ve tested. At least the earbuds and the case charge from 0-100% in only an hour.

    SoundPEATS Capsule3 Pro Battery Comparison

    SoundPEATS Capsule3 Pro battery comparison

    Active noise cancellation is a processing-intensive work that consumes a lot of energy. On average, you can expect a third less battery life than with ANC off.

    However, in SoundPEATS Capsule3 Pro, the expected duration is halved. In our battery life test, enabling ANC and playing music at 50% volume, we got:

    • 3 hours and 59 minutes, which is (so far) the lowest battery life results among all ANC earbuds we’ve tested.

    In contrast, SoundPEATS promises 8 hours of playtime without ANC and 5.5 hours with it. That’s 1.5 hours more than what you get during actual usage.

    SoundPEATS Capsule3 Pro in ears
    If you want to use the Capsule3 Pro during long trips, plan a few breaks to charge the earbuds back up.

    A bitter taste is corrected with 44 hours of extra juice inside the charging case (although, by continuously using ANC, you might only get extra 22 hours out of it).

    Furthermore, official specifications claim both earbuds and the charging case can fast charge from 0-100% in just 1 hour. But there’s no Qi wireless charging if that’s something you like having.


    Star Rating
    4.5 Almost Perfect

    SoundPEATS Capsule3 Pro have a rich selection of practical features and good call quality that users can use. Even Adaptive EQ is helpful this time around.

    The Capsule3 Pro have the same app features as the other SoundPEATS earbuds (apart from ANC modes, which aren’t supported in Air3 Deluxe buds we’ve tested).

    SoundPEATS Capsule3 Pro inside app
    Every control inside the SoundPEATS companion app.

    That means you get Adaptive EQ, in-ear detection, gaming mode, and the ability to disable one-touch control gestures. Sadly, no touch controls customization.

    Adaptive EQ

    In the previous earbuds we’ve tested, Adaptive EQ worked either by creating a V-shaped sound signature or by damping it and crushing all dynamics.

    Fortunately, in SoundPEATS Capsule3 Pro, Adaptive EQ does a good job of lowering the loud midrange and making it more consistent. The end tuning is actually similar to our custom EQ.

    So, if you wish to refrain from fiddling with EQ settings, this feature will help you achieve better sound.

    SoundPEATS Capsule3 Pro EQ features
    EQ presets on the left and Adaptive EQ results on the right.

    Microphone quality

    SoundPEATS Capsule3 Pro have a reasonably clear call quality that works best when speaking in a quiet environment.

    SoundPEATS Capsule3 Pro microphone test:

    Earbuds use 6 microphones (3 in each earbud), but the main one is in the stem of the right bud.

    The call quality performs best when someplace quiet. Earbuds don’t reduce background noise, so the person on the other side can hear things around you. Even tiny noises like mouse clicks.

    When talking on the earbuds, you sound a bit thin but not distorted. So others can easily understand what you’re saying.

    When exposed to louder outside noise, it takes some time for noise reduction to kick in. After that, the mics successfully keep your voice understandable, albeit it’s slightly thinner and more distorted than before.

    Overall performance is similar to the SoundPEATS Air3 Deluxe HS. Good to use for phone calls in a quiet environment.

    Noise Isolation

    Star Rating
    2.5 Average

    SoundPEATS Capsule3 Pro block lower frequencies similarly to other in-ear headphones, but they struggle with higher ones where others perform better.

    Measured average noise isolation14,22 dBA

    Although Capsule3 Pro use silicone ear tips, they can’t keep out as much external noise as other in-ear earbuds.

    SoundPEATS Capsule3 Pro Passive isolation measurement
    Passive isolation only becomes effective after 1kHz.

    Looking at the measurement, earbuds are mostly in line with the competition but start losing after 5kHz and above. Competitors like EarFun Air Pro 3 are ever so slightly better in this region.

    As a result, you will want to enable hybrid active noise cancellation to prevent noises from bothering you.

    Here’s a table of how effective is SoundPEATS Capsule3 Pro’s passive noise isolation at blocking specific frequencies:

    FrequencyNoise reduction
    dB SPL
    Noise reduction
    dBA (A-weighted)
    100 Hz0,1 dB-19 dBA
    200 Hz1,3 dB-9,5 dBA
    400 Hz2,6 dB-2,2 dBA
    600 Hz3,3 dB1,1 dBA
    1 kHz4,7 dB4,7 dBA
    2 kHz19,9 dB21,1 dBA
    4 kHz36,8 dB37,8 dBA
    6 kHz26,4 dB26,5 dBA
    10 kHz29,6 dB27,1 dBA
    15 kHz29,9 dB23,9 dBA
    Average14,22 dBA
    A-weighted values from the International standard IEC 61672:2003

    Noise Cancelling

    Star Rating
    3.5 Almost Great

    SoundPEATS Capsule3 Pro have a good active noise cancelling that mainly reduces lower frequencies while leaving higher ones intact. In contrast, albeit noisy, the Ambient sound mode works genuinely well.

    Measured average noise cancellation8,26 dBA

    SoundPEATS Capsule3 Pro active noise cancelling test:

    SoundPEATS Capsule3 Pro ANC Test – HeadphonesAddict

    Testing active noise cancelling in headphones under $60 brings few expectations. Well, the one in SoundPEATS Capsule3 Pro is decent and comparable to earbuds like 1MORE PistonBuds Pro, EarFun Air S, and 1MORE Aero.

    It can primarily tackle the lower end, reducing it by 27 dB, which is enough to make your ride on public transport more bearable.

    SoundPEATS Capsule3 Pro vs. EarFun Air S - ANC comparison
    For the most part, Capsule3 Pro outperforms the Air S in active noise cancellation, even if just by hair.

    In higher frequencies, the reduction is, at some point, even better, down by 34 dB. However, comparing ANC to passive isolation shows the ANC actually boosts high frequencies by roughly 3 dB.

    Overall, the performance is good for the price and will do the job.

    Here’s the table with SoundPEATS Capsule3 Pro ANC test results:

    FrequencyNoise cancellation
    dB SPL
    Noise cancellation
    dBA (A-weighted)
    30 Hz14,3 dB-26,3 dBA
    50 Hz19,9 dB-10,4 dBA
    70 Hz25,9 dB1,4 dBA
    90 Hz26,8 dB6,2 dBA
    200 Hz29,7 dB18,9 dBA
    400 Hz21,7 dB16,9 dBA
    600 Hz13 dB10,8 dBA
    800 Hz12,8 dB12 dBA
    1 kHz6,6 dB6,6 dBA
    2 kHz8,6 dB9,8 dBA
    Average8,26 dBA
    A-weighted values from the International standard IEC 61672:2003

    What about Ambient sound mode?

    The ambient sound mode in SoundPEATS Capsule3 Pro naturally boosts ambient noise right up to 3kHz, in some places, by +5 dB.

    SoundPEATS Capsule3 Pro Ambient sound mode measurement

    Thankfully, the increase is even, so nothing sounds overly thin or loud. As a result, you can easily have a normal conversation with someone next to you.

    The only thing worth noting is that mics significantly boost the signal, resulting in an audible background hiss.


    Star Rating
    4.0 Great

    SoundPEATS Capsule3 Pro wireless earbuds have an average indoor Bluetooth range of 40 feet, support for LDAC audio codec, and low latency suitable for mobile gamers. But no multipoint.

    The Capsule3 Pro use the latest Bluetooth 5.3, which ensures a reliable close-range connection between your transmitting devices.

    While the outdoor range shouldn’t be an issue, the indoor one is only average.

    SoundPEATS Capsule3 Pro stopped playing audio right after trying to pass the second brick wall at a distance of 40 feet (12 meters).

    Switching to a different Bluetooth codec didn’t help to extend the range.

    SoundPEATS Capsule3 Pro earbuds pattern
    We haven’t encountered any audio stutter when having the transmitting device in vicinity.

    That means you can walk into the next room without experiencing connection issues but avoid walking any further without taking the transmitting device.

    Furthermore, earbuds lack Bluetooth multipoint support, which is to be expected at this price point.

    How to pair SoundPEATS Capsule3 Pro?

    1. When taking them out of the packaging for the first time, you first have to peel off the plastic that prevents them from charging. Then place them back in the case, close and reopen the lid, and the earbuds will automatically initiate the pairing process.
    2. To pair them to the other device, place the wireless earbuds into the charging case, close and reopen the lid, and hold the case button next to the charging port until you hear “pairing” from the buds.
    SoundPEATS Capsule3 Pro charging port
    A tiny pairing button is located next to the charging port.

    What Bluetooth codecs do they use?

    SoundPEATS Capsule3 Pro use SBC, AAC, and hi-res audio LDAC Bluetooth codecs. For the latter to work, you need an Android device, and you must enable the LDAC inside your earbuds’ Bluetooth settings.

    Is there any audio lag?

    Even without Game mode, the audio latency is imperceivable when watching videos on YouTube and clips on social media. Those apps are optimized to ensure a lag-free experience regardless of the earbuds’ delay.

    However, mobile gaming isn’t optimized, so you must enable Game mode. The difference is noticeable and good enough to satisfy even competitive mobile gamers.

    Should You Get SoundPEATS Capsule3 Pro?

    Star Rating
    3.5 Almost Great

    Overall, SoundPEATS Capsule3 Pro are a somewhat average set of true wireless earbuds that could’ve been much better.

    They have many bonus features, but they don’t convince with the basics like sound quality, which SoundPEATS can do better.

    SoundPEATS Capsule3 Pro earbuds in the case
    SoundPEATS Capsule3 Pro are alright if you can get them for less than $60.

    If you’re on a tight budget and $60 is the maximum, SoundPEATS Capsule3 Pro might be a decent option for commuting as they offer the best ANC and ambient sound mode, at least at this price range.

    Furthermore, they’re a good option for sportspeople who want to listen to music in the gym and don’t necessarily care about audio quality.

    Even mobile gamers will find them valuable thanks to their low-latency performance.

    On the other hand, if you’re into sound quality, options like EarFun Air S seem like a much better pick. And if you can spare an extra $20, EarFun Air Pro 3 are an improvement in almost every aspect. Check other excellent alternatives below.

    How do SoundPEATS Capsule3 Pro compare to the competition?

    • Capsule3 Pro have slightly more features than the competition at $60, like LDAC codec and Adaptive EQ.
    • Game mode offers low latency, making them a better pick if you’re into mobile gaming.
    • Active noise cancellation is in line, if not slightly better than with the competition at this price.
    • Ambient sound mode boosts surrounding sounds much more naturally than competitors.
    • Sound quality doesn’t quite match competitors’, even some earbuds of SoundPEATS’s making.
    • Battery life of only 4 hours on a single charge is the lowest result among ANC earbuds we’ve tested.

    SoundPEATS Capsule3 Pro Alternatives

    EarFun Air S

    EarFun Air S earbuds on the wall

    EarFun earbuds have a smoother, more natural sound (after EQ) that provides better control.

    They offer a slightly higher water-resistant rating at IPX5, multipoint support, and a marginally better Bluetooth range at 50 feet.

    On the other hand, they’re worse regarding ANC and mic quality.

    EarFun Air S review

    SoundPEATS Air3 Deluxe HS

    SoundPEATS Air3 Deluxe HS earbuds in case

    You get a much more natural sound that’s more detailed and controlled (after EQ).

    The app offers a similar set of features (apart from ANC and ambient sound mode), but custom EQ is better on the HS, and Adaptive EQ is better on Capsule3 Pro.

    Capsule3’s are also better for sports thanks to stability, but Deluxe HS are comfier for longer listening sessions.

    SoundPEATS Air3 Deluxe HS review

    EarFun Air Pro 3

    EarFun Air Pro 3 earbuds

    For an extra $20, the Air Pro 3 have a clearer, more detailed sound and control (after EQ), support for Bluetooth multipoint, and a long battery life at 8 hours per charge.

    Furthermore, they have a far superior active noise cancelling and similarly full-sounding transparency mode with less background noise.

    Instead of LDAC, they support LC3, the new highly efficient audio codec.

    EarFun Air Pro 3 review

    What’s in the Box?

    SoundPEATS Capsule3 Pro accessories
    • SoundPEATS Capsule3 Pro true wireless earbuds
    • Charging case
    • USB-C charging cable
    • 3 pairs of silicone ear tips (S, M, L)
    • User manual


    Type: True wireless
    Connection: Bluetooth 5.3
    Back design: Closed-back
    Drivers: 12mm dynamic
    Frequency range: 20-40.000Hz
    Impedance: n/a
    Weight: 0.17 ounces (5 grams) per bud
    Mic & Controls: Yes
    Water resistance: IPX4
    Battery life: 4h + 22h (ANC on), 8h + 44h (ANC off)
    Charging time: 1h – USB-C
    Active noise cancelling: Yes, hybrid
    Bluetooth codecs: SBC, AAC, LDAC
    Wireless range: 40 feet (12.2 meters)
    Microphone: Yes, 6 mic in total

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