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1 / 9Feature-packed true wireless earbuds for under $100.
A 4.2 puts its noise isolation / ANC in the bottom third of wireless earbuds we've measured.
Measured on 133 of the 271 we've cataloged.
above average for wireless earbuds — based on 243 of 271 we've cataloged.
above average for wireless earbuds — based on 245 of 271 we've cataloged.
IP55 appears on 16% of the 244 wireless earbuds we've cataloged (of 271).
The latest true wireless earbuds from Skullcandy introduce an integrated voice assistant for full control on the go. Endless features and customization within the Skullcandy app will satisfy nearly any tinkerer. However, without active noise canceling, the Skullcandy Grind Fuel struggles to fully silence the competition.
Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.
Measured frequency response (dB) against the SoundGuys house target — the dashed curve. The closer the measured line tracks the target, the more neutral the tuning; peaks ride above the target, dips fall below it.
| Frequency (Hz) | Response (dB) |
|---|---|
| 20 | 12.7 |
| 25 | 12.3 |
| 32 | 11.8 |
| 40 | 11.0 |
| 50 | 10.3 |
| 63 | 9.6 |
| 80 | 8.8 |
| 100 | 7.8 |
| 125 | 6.6 |
| 160 | 5.1 |
| 200 | 3.7 |
| 250 | 3.3 |
| 315 | 1.8 |
| 400 | 0.3 |
| 500 | -1.1 |
| 630 | -2.0 |
| 800 | -1.3 |
| 1000 | 0.1 |
| 1250 | 1.8 |
| 1600 | 4.2 |
| 2000 | 7.6 |
| 2500 | 10.4 |
| 3150 | 9.7 |
| 4000 | 6.1 |
| 5000 | 6.0 |
| 6300 | 6.5 |
| 8000 | 6.2 |
| 10000 | 2.1 |
| 12500 | -7.3 |
| 16000 | -13.7 |
| 20000 | -14.9 |
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 | 2.3 |
| 26 | 1.9 |
| 33 | 3.0 |
| 41 | 2.9 |
| 52 | 2.9 |
| 65 | 2.7 |
| 82 | 3.2 |
| 103 | 3.6 |
| 130 | 2.0 |
| 163 | 2.1 |
| 205 | 1.8 |
| 259 | 1.8 |
| 325 | 3.6 |
| 410 | 6.3 |
| 516 | 13.2 |
| 613 | 7.5 |
| 772 | 12.1 |
| 972 | 13.8 |
| 1220 | 18.7 |
| 1540 | 20.6 |
| 1940 | 19.4 |
| 2440 | 23.1 |
| 3070 | 23.5 |
| 3870 | 21.8 |
| 4870 | 29.5 |
| 6130 | 28.3 |
| 7720 | 25.7 |
| 9720 | 26.6 |
| 12200 | 27.2 |
| 15400 | 31.3 |
| 19400 | 23.5 |
Commentary and deep dives from the SoundGuys editorial team.











