

Sennheiser MOMENTUM True Wireless 4
0 of 1 would buy again
1 owner
Comfort beat their expectations
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At 7.5, its noise cancelling beats 32% of wireless earbuds we've measured.
Measured on 95 of the 266 we've cataloged.
A 4.8 puts its audio quality in the top half of wireless earbuds we've measured.
Measured on 67 of the 266 we've cataloged.
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above average for wireless earbuds — based on 250 of 266 we've cataloged.
wireless earbuds — based on 247 of 266 we've cataloged.
IPX5 appears on 10% of the 245 wireless earbuds we've cataloged (of 266).
Active is the most common — on 62% of the 180 wireless earbuds we've cataloged (of 266).
Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.
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 | 8.8 |
| 25 | 10.5 |
| 32 | 13.3 |
| 40 | 15.4 |
| 50 | 16.4 |
| 63 | 16.1 |
| 80 | 14.4 |
| 100 | 11.6 |
| 125 | 7.7 |
| 160 | 1.1 |
| 200 | -2.8 |
| 250 | -2.2 |
| 315 | -1.4 |
| 400 | -2.2 |
| 500 | -2.6 |
| 630 | -2.0 |
| 800 | -1.2 |
| 1000 | 0.1 |
| 1250 | 3.1 |
| 1600 | 6.9 |
| 2000 | 10.4 |
| 2500 | 13.3 |
| 3150 | 13.3 |
| 4000 | 11.4 |
| 5000 | 12.6 |
| 6300 | 15.0 |
| 8000 | 13.9 |
| 10000 | 7.9 |
| 12500 | 12.5 |
| 16000 | 4.9 |
| 20000 | -11.9 |
Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.
| Frequency (Hz) | Attenuation (dB) |
|---|---|
| 21 | -2.4 |
| 26 | 7.3 |
| 33 | 1.6 |
| 41 | 1.1 |
| 52 | 2.0 |
| 65 | 2.0 |
| 82 | 0.9 |
| 103 | 3.2 |
| 130 | 4.1 |
| 163 | 3.0 |
| 205 | 3.9 |
| 259 | 5.3 |
| 325 | 4.0 |
| 410 | 6.9 |
| 516 | 6.4 |
| 613 | 8.5 |
| 772 | 12.5 |
| 972 | 13.1 |
| 1220 | 14.1 |
| 1540 | 13.8 |
| 1940 | 19.7 |
| 2440 | 28.6 |
| 3070 | 28.4 |
| 3870 | 21.0 |
| 4870 | 12.4 |
| 6130 | 12.9 |
| 7720 | 20.6 |
| 9720 | 28.7 |
| 12200 | 16.2 |
| 15400 | 31.1 |
| 19400 | 38.7 |
Total attenuation (dB) with ANC on — passive isolation plus active noise cancelling. Higher on the chart means more attenuation.
| Frequency (Hz) | Total attenuation (dB) |
|---|---|
| 21 | -3.4 |
| 26 | 19.7 |
| 33 | 14.4 |
| 41 | 20.1 |
| 52 | 22.0 |
| 65 | 26.6 |
| 82 | 19.8 |
| 103 | 27.4 |
| 130 | 22.5 |
| 163 | 15.0 |
| 205 | 17.3 |
| 259 | 16.6 |
| 325 | 12.9 |
| 410 | 18.1 |
| 516 | 14.9 |
| 613 | 17.3 |
| 772 | 32.7 |
| 972 | 21.7 |
| 1220 | 18.9 |
| 1540 | 17.2 |
| 1940 | 29.1 |
| 2440 | 28.3 |
| 3070 | 25.2 |
| 3870 | 14.4 |
| 4870 | 9.6 |
| 6130 | 12.8 |
| 7720 | 20.6 |
| 9720 | 28.1 |
| 12200 | 16.4 |
| 15400 | 30.2 |
| 19400 | 39.0 |
Multi-Dimensional Audio Quality Scores (1–5), modeled from the measured response. Higher is better across timbre, distortion, and immersiveness — add other models to see where this one lands.
The verdict
The P40i work well enough for casual listening if you can tolerate their boomy bass and loose fit. The built-in phone stand is handy but the sluggish controls and poor call quality make them feel cheap in daily use despite decent battery life and noise cancellation.
✓Liked: Battery, Isolation, Built-in phone stand, App
✕Could be better: Extreme V-shaped sound, Loose fit, Mic quality, Touch controls
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What readers ask about the Anker Soundcore P40i, answered by the people who own it.
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0 of 1 would buy again
1 owner
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
Comfort beat their expectations


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


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
