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Senso Bluetooth Headphones ActivBuds S-255 Review

Last updated: 4 years ago
5 min read
Senso Bluetooth Headphones ActivBuds S-255 unboxed

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Please note: The Senso ActivBuds S-255 is an older model. For the latest similar options with improved features and performance, check our most recent recommendations:

Super cheap Bluetooth earbuds for basshead sportspeople.

If you’re on the lookout for cheap earbuds under $30, then Senso ActivBuds S-255 might be the right choice for you.

These are massively popular for their low price and rugged design that works. The ear hook design is copied after the famous Beats Powerbeats, so they share the same look.

And, if you’re a fan of overpowering bass, Senso Bluetooth headphones are one of the best choices on a budget right now. Learn more below.

  • Very cheap
  • Reliable performance
  • Water-proof with an IPX7 rating
  • Long battery life for the price, up to 8h
  • Secure fit for all types of sports
  • Overpowering bass (for a basshead)
  • Earbuds a bigger in size
  • Not the most comfortable
  • Powerful bass overshadows other ranges
By HeadphonesAddict
User Ratings: 7
Our rating
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User rating
  • 1.0
  • 2.5
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CONTENTS (show more)

    What’s in the Box?

    Senso Bluetooth Headphones ActivBuds S-255 unboxed
    Senso headphones unboxed.
    • Senso Bluetooth ActivBuds S-255
    • 3 pairs of silicone eartips (S, M, L)
    • 1 pair of memory foam eartips
    • 2 wire clips
    • Micro-USB charging cable
    • Hard, zipper carrying case
    • Cellphone car mount
    • Cellphone card wallet
    • Quick start guide
    • User manual

    Comfort & Fit

    Star Rating
    3.0 Good

    Since the Senso earbuds are meant for sports, the fit is the main priority. And it’s pretty good.

    Once you find the right eartips for your ear size and adjust the ear hooks, the buds stay in place even for sprinting.

    At times, you might need to readjust them, but generally, the fit is stable and secure for working out.

    Now, when it comes to comfort things aren’t so shiny. Due to the big size of the casing, the wireless earphones tend to brush against the ears often. This creates friction and irritation after a while.

    Big size also means higher weight. Most often than not you’ll feel their weight, combine it with constant friction, and you’ll want to take them off after about an hour.

    True, memory foam ear tips (included in the package) help but don’t solve the problem.

    Generally, comfort isn’t top notch but decent. If you need wireless sports earbuds for an hour or so per session, the Senso ActiveBuds will do the job.

    If you’re a marathon runner that needs to wear earphones for longer, avoid these.

    Senso Bluetooth Headphones ActivBuds S-255 ear buds
    Memory foam eartips come with the package and are the best choice overall.

    Noise Isolation

    Star Rating
    4.0 Great

    Just like other in-ear headphones, the Senso Bluetooth earbuds sport good passive noise isolation as well.

    Most of the ambient noise will be blocked out, and you’ll only focus on your music. It’s a good thing if you want to create your own private bubble and avoid others bothering you.

    Furthermore, there’s basically no cable noise. Since the wireless headphones are worn behind the neck cables aren’t such a big issue.

    You can always put on a cable clip and control the length, so it fits you perfectly.


    Star Rating
    3.5 Almost Great

    Senso Bluetooth in-ear headphones feature Bluetooth 4.1 and CVC 6.0 noise cancelling microphone technology.

    From wireless Bluetooth, you can expect the standard 30ft (10m) of range without obstacles. Generally, the connection is stable and doesn’t break or distort the music.

    Connecting is as easy as pressing and holding the power button (right red “S” button), on turned off earbuds. Pairing will begin automatically, and all the steps are described in the quick start guide.

    What Bluetooth codecs Senso earbuds support?

    Unfortunately, they don’t support any of the better codecs right now, like aptX, AAC…

    But, considering the price, this isn’t such a huge issue, especially since the bass is so strong. A better codec wouldn’t make a difference.

    Senso Bluetooth Headphones ActivBuds S-255 charging
    Senso Bluetooth headphones are charged via micro-USB port.


    Star Rating
    3.0 Good

    The improved battery life is one of the new features of this updated model. Now, you’ll get up to 8 hours per full charge.

    This is plenty of power for many workouts or for a longer hike.

    You charge them with micro-USB cable, and it won’t take you more than 2 hours to do so.

    Overall, it’s solid battery performance in this price range.


    Star Rating
    4.5 Almost Perfect

    The wireless earbuds are fully plastic with flat rubber cable and memory ear hooks.

    When you take them in your hands, they feel solid without major weak points.

    It seems like a thought-through design with a proven track record. It’s not a surprise they also have an IPX7 rating just like the best waterproof Bluetooth headphones.

    You can easily drop them in water clean them under the tap and even wash them in water though you can’t swim with them Bluetooth doesn’t work. For swimming headphones, click here. LINKZ

    All in all, they should last you long enough to justify the price.

    Senso Bluetooth Headphones ActivBuds S-255 remote controls
    3 buttons control all the functions.


    Star Rating
    3.0 Good

    The Senso sports earbuds have a built-in mic which is of okay quality.

    As is the case with built-in microphones, they send through too much static and background sounds in noisier environments.

    You can still make a regular call in a peaceful place but don’t expect to hold a serious conversation next to a busy street.

    Additionally, there are 3 built-in remote buttons. The main one, red S logo on the right bud is the multifunction button. It controls powering on/off, answering/hanging up calls, calling last number and pairing.

    The other 2 buttons + and – control volume and song selection.

    The buttons are easy to distinguish and give good feedback, so you always know what you’re pressing.

    It’s the usual features you get from wireless headphones for working out.

    Senso Bluetooth Headphones ActivBuds S-255 accessories


    Star Rating
    4.0 Great

    You get quite a lot of stuff, though some of it doesn’t make much sense.

    So, apart from Senso wireless buds, you get 4 pairs of ear tips (one pair of memory foam), 2 wire clips for cable management, standard charging cable, a nice hard carrying case with a zipper, and a cellphone card wallet and car mount.

    Now, I’m not sure why the cellphone card wallet and car mount are in the package, but that’s something you get as an extra. Probably to increase your perception of value.

    If you need these things, great, if not, you can just gift them to somebody who does.

    For the price, you get more than expected, and that’s a good thing.

    Senso Bluetooth Headphones earbuds with hooks
    “Big” earbuds come with deep bass.


    Star Rating
    1.5 Meh

    Now to the most important thing, sound quality.

    To not waste your time, the Senso wireless earbuds are bass-heavy to the point of distortion.

    The bass is massively overpowering, so it overshadows the mids and highs.

    Therefore, if you’re a bass lover, you’ll like the Senso headphones a lot. You’ll get plenty of power from any song.

    But, from an audiophile’s perspective, it isn’t detailed but “boomy.” Lots of “oomph” with little else.

    For non-bassheads, these will probably be fatiguing and non-satisfactory.

    Nonetheless, if you don’t mind strong lows and aren’t a picky audiophile, you’ll be more than happy. Heavy bass is a legitimate sound taste, and nobody has the right to tell you otherwise.

    Additionally, sibilance isn’t a problem since highs always hide in the presence of bass.

    Senso Bluetooth headphones, ActivBuds S-255, are an excellent choice for a basshead on a budget that wants reliable wireless earbuds for working out.

    If you’re looking for cheap sports bass earbuds, then these are worth checking out.

    What are similar alternatives?

    The best workout headphones


    Type: Wireless in-ear
    Connection: Bluetooth 4.1
    Back design: Closed-back
    Drivers: n/a
    Frequency range: 20-22.000Hz
    Impedance: n/a
    Weight: 0.74 oz (21g)
    Mic & Controls: Yes
    Water resistance: IPX7
    Battery life: 8h
    Charging time: 2h – Micro-USB
    Active noise cancelling: No
    Bluetooth codecs: n/a
    Wireless range: 33ft (10m)
    Microphone: Built-in

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