

Sennheiser MOMENTUM True Wireless 4
1 of 2 would buy again
2 owners
The battery beat their expectations
Comfort beat their expectations
Every editorial hub, scoped to earbuds.
Every editorial hub, scoped to headphones.
All products featured are independently chosen by us. However, SoundGuys may receive a commission on orders placed through its retail links. See our ethics statement.
1 / 7At 8, its noise cancelling beats 54% of wireless earbuds we've measured.
Measured on 91 of the 257 we've cataloged.
A 3.6 puts its audio quality in the bottom quarter of wireless earbuds we've measured.
Measured on 63 of the 257 we've cataloged.
No one has reported on this one yet.
Be the first. We ask a few quick questions about living with it, then check the review before publishing.
Own the Fairphone Fairbuds?
Be the first owner to write in — three answers, four quick reads, shown under a pseudonym. Sign-in needed to publish.
below average for wireless earbuds — based on 241 of 257 we've cataloged.
below average for wireless earbuds — based on 239 of 257 we've cataloged.
IP54 appears on 16% of the 237 wireless earbuds we've cataloged (of 257).
Active is the most common — on 60% of the 174 wireless earbuds we've cataloged (of 257).
Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.
Fairphone Fairbuds Frequency Response (measured on a B&K 5128)
Click a line or a legend entry to highlight it. Click again to clear.Tap a legend entry to highlight its line. Tap again to clear.
Measured frequency response (dB relative) against the SoundGuys Headphone Preference Curve. When the measurement goes above the dashed line, that frequency is louder than our preference curve, and when it goes below: it's quieter. Use the curve for comparison purposes only, as your taste may vary.
| Frequency (Hz) | Response (dB) |
|---|---|
| 20 | 5.0 |
| 25 | 4.9 |
| 32 | 4.6 |
| 40 | 4.2 |
| 50 | 3.7 |
| 63 | 3.1 |
| 80 | 2.3 |
| 100 | 1.5 |
| 125 | 0.5 |
| 160 | 0.8 |
| 200 | 0.3 |
| 250 | -0.1 |
| 315 | -0.7 |
| 400 | -0.8 |
| 500 | 0.4 |
| 630 | 2.5 |
| 800 | 2.2 |
| 1000 | 1.8 |
| 1250 | 1.8 |
| 1600 | 2.1 |
| 2000 | 2.1 |
| 2500 | 1.2 |
| 3150 | 0.6 |
| 4000 | 3.1 |
| 5000 | 4.7 |
| 6300 | 4.8 |
| 8000 | -1.3 |
| 10000 | -15.5 |
| 12500 | -11.2 |
| 16000 | -21.6 |
| 20000 | -34.6 |
Fairphone Fairbuds Attenuation (measured on a B&K 5128)
Click a line or a legend entry to highlight it. Click again to clear.Tap a legend entry to highlight its line. Tap again to clear.
Solid lines: passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Dashed lines: total attenuation (dB) with ANC on — passive isolation plus active noise cancelling. Higher on the chart means more attenuation.
| Frequency (Hz) | Attenuation (dB) |
|---|---|
| 21 | 14.0 |
| 26 | 4.6 |
| 33 | 2.3 |
| 41 | 2.8 |
| 52 | 2.8 |
| 65 | 3.9 |
| 82 | 4.7 |
| 103 | 5.0 |
| 130 | 4.4 |
| 163 | 6.4 |
| 205 | 7.5 |
| 259 | 8.1 |
| 325 | 7.1 |
| 410 | 8.5 |
| 516 | 4.7 |
| 613 | 7.9 |
| 772 | 14.2 |
| 972 | 15.8 |
| 1220 | 17.0 |
| 1540 | 18.7 |
| 1940 | 22.5 |
| 2440 | 27.7 |
| 3070 | 27.9 |
| 3870 | 25.8 |
| 4870 | 25.7 |
| 6130 | 33.5 |
| 7720 | 28.9 |
| 9720 | 34.5 |
| 12200 | 21.8 |
| 15400 | 31.2 |
| 19400 | 35.2 |
| Frequency (Hz) | Total attenuation (dB) |
|---|---|
| 21 | 14.3 |
| 26 | 11.8 |
| 33 | 15.9 |
| 41 | 15.5 |
| 52 | 19.2 |
| 65 | 23.4 |
| 82 | 26.6 |
| 103 | 24.0 |
| 130 | 18.6 |
| 163 | 22.3 |
| 205 | 22.6 |
| 259 | 21.3 |
| 325 | 15.0 |
| 410 | 13.9 |
| 516 | 9.4 |
| 613 | 11.2 |
| 772 | 20.6 |
| 972 | 22.4 |
| 1220 | 23.1 |
| 1540 | 23.4 |
| 1940 | 28.1 |
| 2440 | 39.7 |
| 3070 | 33.2 |
| 3870 | 36.2 |
| 4870 | 29.6 |
| 6130 | 28.0 |
| 7720 | 25.2 |
| 9720 | 36.4 |
| 12200 | 10.9 |
| 15400 | 21.5 |
| 19400 | 36.3 |
Fairphone Fairbuds MDAQS
Multi-Dimensional Audio Quality Scores, Scale 1 - 5
Virtual mean opinion scores (MOS) on a 1–5 scale, modeled from the measured response by HEAD acoustics’ MDAQS (Multi-Dimensional Audio Quality Score) model. Higher is better across timbre, distortion, and immersiveness — add other models to see where this one lands.
The verdict
These earbuds aren't quite there yet. Though they are built like a tank and can be maintained easily, the sound isn't all that good. Audiophiles might steer clear, but DIY enthusiasts and eco-conscious buyers might want to take note.
✓Liked: Completely replaceable batteries, Easy to fit, Unprecedented reparability, ANC
✕Could be better: Sound quality, Bulky, Drop-outs, App
Nobody who owns the Fairphone Fairbuds has written in yet.
Owner reviews are not paid for, not solicited from specific owners, and not rewritten by us: at most we proofread typos, which is shown on the review’s own page and which the author can undo. The commission SoundGuys may earn on this page comes from retail links, never from owner reviews.
Own the Fairphone Fairbuds?
Three answers, four quick reads, one sentence nobody tells you before buying. Shown under a pseudonym. Sign-in needed to publish.
What readers ask about the Fairphone Fairbuds, answered by the people who own it.
Nobody has asked the owners yet.
Ask the first question →Commentary and deep dives from the SoundGuys editorial team.


1 of 2 would buy again
2 owners
The battery beat their expectations
Comfort beat their expectations


1 of 1 would buy again
1 owner
Expected more from comfort

2 of 2 would buy again
2 owners · owners report ~10 h per charge vs 8.73 h claimed
Comfort beat their expectations
The battery beat their expectations


0 of 1 would buy again
1 owner
Expected more from the noise cancelling


0 of 1 would buy again
1 owner
Comfort beat their expectations


2 of 2 would buy again
2 owners
The battery beat their expectations
The battery beat their expectations

1 of 1 would buy again
1 owner · owners report ~7 h per charge vs 10 h claimed
Comfort beat their expectations
