Short answer: the Sennheiser IE 300, though neither ranks well in its class. It ranks #1190 of 1291 in-ear headphones by sound quality, rated 1.7/5, at $179.95; the Sennheiser Momentum True Wireless ranks #1211, rated 1.5/5, and costs $180, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 1291 in-ear headphones; for better sound, the Truthear Nova ranks #2 at $169.99.
Why pick the Sennheiser IE 300: A compact, comfortable single dynamic IEM with a detachable cable and full bass about 4 dB above target that extends to 20 Hz. Watch for: The tuning measures poorly, with a Harman score of 46: presence sits about 5.6 dB low with a 7.7 dB dip near 3.2 kHz, while a 12.4 dB treble peak near 9.8 kHz can make cymbals and sibilance harsh.
What the Sennheiser Momentum True Wireless does well: Bass is lifted about 2.5 dB with extension to 20 Hz, giving kick drums and bass lines extra weight. The tradeoff: Presence sits about 10.9 dB low with a 12.4 dB dip near 4.0 kHz, so vocals and instruments lose some bite.
Buy the Sennheiser IE 300. It is rated higher for sound quality than the Sennheiser Momentum True Wireless and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Headphones rankings cover every ranked option.
A compact, comfortable single dynamic IEM with a detachable cable and full bass about 4 dB above target that extends to 20 Hz.
Sennheiser $179.95 eBay
Bass is lifted about 2.5 dB with extension to 20 Hz, giving kick drums and bass lines extra weight.
Amazon $180.00 eBayPrices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Sennheiser IE 300 | Sennheiser Momentum True Wireless | |
|---|---|---|
| Price | $179.95 | $180.00 |
| Ranked | #1190 of 1291 in In-Ear Headphones | #1211 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | - |
| Connection | Wired | True wireless |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 7mm dynamic | 1 x 7mm dynamic |
| Impedance | 16 ohms | - |
| Sensitivity | 124 dB/Vrms | 107 dB/mW |
| Frequency Response | 6Hz - 20kHz (Manufacturer specified) | 5Hz - 21kHz |
| Weight | 0 lbs (4 g) | 0 lbs (13.2 g) (both earbuds) |
| Harman Preference Score | 46 (measured by HypetheSonics, via AutoEQ) | 43 (measured by oratory1990, via AutoEQ) |
| Deviation From Target | 4.03 dB standard deviation | 4.45 dB standard deviation |
| Tonal Tilt | -1.20 (negative is warmer, positive brighter) | -1.14 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+3.0 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-1.2 dB at 30 Hz) |
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