

Sennheiser MOMENTUM True Wireless 4
0 of 1 would buy again
1 owner
Comfort beat their expectations
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Hop on the Skullcandy train
At 8, its noise cancelling beats 51% of wireless earbuds we've measured.
Measured on 88 of the 261 we've cataloged.
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above average for wireless earbuds — based on 245 of 261 we've cataloged.
above average for wireless earbuds — based on 243 of 261 we've cataloged.
IPX4 is the most common — on 36% of the 241 wireless earbuds we've cataloged (of 261).
Active is the most common — on 59% of the 175 wireless earbuds we've cataloged (of 261).
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 | 10.7 |
| 25 | 10.6 |
| 32 | 10.3 |
| 40 | 9.4 |
| 50 | 8.2 |
| 63 | 7.0 |
| 80 | 5.6 |
| 100 | 4.1 |
| 125 | 2.4 |
| 160 | 0.5 |
| 200 | -0.4 |
| 250 | -0.5 |
| 315 | -1.3 |
| 400 | -3.4 |
| 500 | -3.0 |
| 630 | -1.8 |
| 800 | -0.9 |
| 1000 | 0.0 |
| 1250 | 1.6 |
| 1600 | 3.7 |
| 2000 | 6.1 |
| 2500 | 9.0 |
| 3150 | 8.1 |
| 4000 | 3.4 |
| 5000 | 3.9 |
| 6300 | 7.2 |
| 8000 | 4.1 |
| 10000 | -6.6 |
| 12500 | -4.0 |
| 16000 | -13.2 |
| 20000 | -35.7 |
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 | -2.0 |
| 26 | 18.1 |
| 33 | 3.0 |
| 41 | 3.5 |
| 52 | 3.8 |
| 65 | 4.7 |
| 82 | 4.7 |
| 103 | 5.7 |
| 130 | 6.2 |
| 163 | 6.2 |
| 205 | 7.5 |
| 259 | 10.4 |
| 325 | 10.8 |
| 410 | 8.9 |
| 516 | 8.3 |
| 613 | 10.3 |
| 772 | 18.7 |
| 972 | 20.3 |
| 1220 | 22.7 |
| 1540 | 26.0 |
| 1940 | 28.4 |
| 2440 | 32.5 |
| 3070 | 31.2 |
| 3870 | 27.4 |
| 4870 | 34.3 |
| 6130 | 46.1 |
| 7720 | 48.0 |
| 9720 | 41.0 |
| 12200 | 28.0 |
| 15400 | 41.3 |
| 19400 | 29.9 |
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 | 1.2 |
| 26 | 19.5 |
| 33 | 8.0 |
| 41 | 11.8 |
| 52 | 18.3 |
| 65 | 24.1 |
| 82 | 26.9 |
| 103 | 23.2 |
| 130 | 20.7 |
| 163 | 19.1 |
| 205 | 18.3 |
| 259 | 18.9 |
| 325 | 14.6 |
| 410 | 10.4 |
| 516 | 11.1 |
| 613 | 11.8 |
| 772 | 23.9 |
| 972 | 26.5 |
| 1220 | 28.6 |
| 1540 | 30.9 |
| 1940 | 30.9 |
| 2440 | 30.8 |
| 3070 | 30.2 |
| 3870 | 28.4 |
| 4870 | 33.4 |
| 6130 | 37.1 |
| 7720 | 39.5 |
| 9720 | 40.4 |
| 12200 | 22.4 |
| 15400 | 33.0 |
| 19400 | 29.4 |
The verdict
If you want comfortable earbuds with good functionality and a companion app, the Skullcandy Rail ANC are a reliable option. If you can get along with the chunkier size, they reward with reliable touch controls and decent noise canceling.
✓Liked: IPX4 water resistance, Battery life, Personal Sound by MIMI, Good app
✕Could be better: Chunky, Mic is only okay, Bassy by default
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What readers ask about the Skullcandy Rail, answered by the people who own it.
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0 of 1 would buy again
1 owner
Comfort beat their expectations

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


1 of 1 would buy again
1 owner
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
