Sennheiser Momentum TW 4 Review: What Testing Shows
What audio labs found testing the Sennheiser Momentum True Wireless 4: SoundGuys measured 83% noise reduction, RTINGS frequency data, and street prices.
Sennheiser Momentum True Wireless 4
4.5 / 5 across major testing outlets
Verified Hardware Specifications
- •Class-leading sound quality: scored 4.8 out of 5 on SoundGuys' standardized MDAQS audio perception test
- •Lab-measured 83% average ambient noise reduction in SoundGuys' acoustic attenuation chamber
- •Exceptional future-proof codec support including aptX Lossless, aptX Adaptive, LC3, and Auracast
- •Measured 7 hours and 45 minutes of continuous battery playback with ANC enabled
- •Upgraded IP54 dust and splash resistance rating protects against gym sweat and outdoor rain
- •Street pricing has softened from $299.95 down to approximately $229 on Amazon and Best Buy
- •Active Noise Cancellation trails the Bose QuietComfort Ultra Earbuds in blocking low-frequency subway rumble
- •Chunky physical earbud dimensions (6.2g) can cause ear fatigue for users with smaller ear canals
- •Microphone background noise suppression during phone calls remains mediocre in windy environments
The 60-Second Verdict
The Sennheiser Momentum True Wireless 4 is the undisputed champion of audiophile wireless audio, earning a stellar 4.8/5 MDAQS perception score and a lab-measured 83% average noise reduction in SoundGuys' testing. With native aptX Lossless transmission, future-proof Auracast, and retail street pricing dropping to ~$229, it is the finest sounding pair of earbuds in its class. While Bose still holds the ultimate crown for sub-bass airplane silence, Sennheiser delivers a vastly superior musical experience.
Acoustic Performance: What the Sound Labs Measured
Sennheiser built its reputation on studio acoustics, and lab sweeps confirm that the Momentum True Wireless 4's 7mm TrueResponse dynamic transducers deliver remarkable fidelity.
SoundGuys evaluates wireless earbuds using MDAQS (Multi-Dimensional Audio Quality Score), an objective acoustic test suite that predicts human auditory preference across timbre, distortion, and spatial presentation:
- Overall MDAQS Score: 4.8 out of 5.0 (among the highest scores ever awarded to consumer true wireless earbuds).
- Sound Signature: In RTINGS' frequency sweeps, the MTW4 displayed a warm, refined profile with authoritative sub-bass extension that never bleeds into the lower midrange, alongside smooth, natural treble that eliminates high-frequency sibilance.
In its 5-star review, British audio authority *What Hi-Fi?* praised the acoustic tuning:
*"They deliver a rich, mature, full-bodied and highly dynamic presentation that will satisfy listeners looking for depth. While competitors like the Sony WF-1000XM5 lean heavily into transparency and clarity, the Sennheisers offer deeper bass weight, a warmer midrange, and a smooth, refined treble."*
For listeners who want to adjust the frequency curve, the Sennheiser Smart Control app provides a comprehensive five-band equalizer alongside a guided Sound Personalization calibration test that tunes playback to your individual hearing thresholds.
Active Noise Cancellation: 83% Ambient Attenuation
While previous generations of Sennheiser earbuds struggled against Sony and Apple in noise cancellation, the fourth-generation model makes massive strides.
In SoundGuys' standardized acoustic chamber, which blasts calibrated pink noise and low-frequency drone to evaluate attenuation:
*"The Sennheiser MOMENTUM True Wireless 4 provides an average of 83% attenuation of ambient noise, which places it ahead of 76% of all tested earbuds."*
The adaptive ANC system continuously monitors ambient noise via external and internal microphones:
- Mid-Frequency Speech & Office Chatter: Attenuation peaks at roughly 20 dB to 25 dB of isolation, muting conversational chatter, coffee shop clatter, and typing clicks.
- Low-Frequency Airplane & Subway Drone: While the MTW4 reduces deep engine rumbles effectively, it does not achieve the near-total silence of the Bose QuietComfort Ultra Earbuds, which isolate low frequencies with greater physical aggression.
For users cross-shopping ANC earbuds with compact ergonomics, compare these results against our guide to the best noise-canceling earbuds for small ears.
Battery Life: Measured Lab Run Times
Battery performance was verified on instrumented test benches under standardized volume levels:
| Lab / Source | Test Protocol | Measured Battery Runtime |
|---|---|---|
| SoundGuys | 75 dB(SPL) continuous output, ANC Enabled | 7 hours 45 minutes |
| RTINGS | Mixed audio playback, ANC Enabled | 7 hours 18 minutes |
| Tom's Guide | Standard commuting cycle, ANC Enabled | 7 hours 30 minutes |
| Sennheiser Claim | Mid-volume playback, ANC Enabled | Up to 7.5 hours (rated) |
A verified 7.75-hour runtime with ANC enabled puts the MTW4 well ahead of the AirPods Pro 2 (roughly 5.5 to 6 hours) and competitive with the Sony WF-1000XM5 (8 hours).
The fabric-wrapped charging case provides an additional 3 full charges, yielding roughly 30 hours of total playtime. Recharging is handled via USB-C or any standard Qi wireless charging pad, and an 8-minute quick charge injects one hour of music playback.
Connectivity: Bluetooth 5.4, Auracast, and aptX Lossless
Where the Momentum True Wireless 4 separates itself from Apple and Bose is its cutting-edge wireless platform.
Powered by Qualcomm's S5 Sound Gen 2 processor and Bluetooth 5.4, the MTW4 is built for the next decade of wireless audio standards:
- aptX Lossless: When paired with a compatible Snapdragon Sound Android phone, the earbuds stream bit-perfect CD audio (16-bit / 44.1 kHz) over Bluetooth without destructive compression artifacts.
- LC3 and LE Audio: Low-complexity communication codecs reduce power consumption while improving audio stream stability in crowded airports or train stations.
- Auracast Broadcast Audio: Allows you to tune into public audio broadcasts at airport flight gates, museum exhibits, or gym televisions with a single tap.
Ergonomics, Fit, and Daily Limitations
Despite its audio brilliance, the MTW4 has physical trade-offs you must consider:
- Chunky Shell Dimensions: At 6.2 grams per earbud, the MTW4 housing is noticeably larger than the AirPods Pro 2 (5.3g) or Sony LinkBuds S (4.8g). While the included silicone fins keep the buds securely anchored during runs, users with smaller ears report outer-ear fatigue after 2 to 3 hours of continuous listening.
- Call Quality in Wind: While indoor voice calls through its multi-mic array sound crisp and natural, reviewers noted that the noise suppression algorithms struggle to filter out heavy outdoor wind gusts.
- IP54 Durability Upgrade: On a positive note, Sennheiser upgraded the weather sealing from IPX4 to IP54, meaning the earbuds are officially rated to keep out fine dust particles and heavy sweat splashes.
If you are considering other premium audio gear, explore our instrumented review roundup of the Pixel Buds Pro 2 and our head-to-head comparison between Sony and Bose headphones.
Who Should Buy the Sennheiser Momentum TW 4?
At its discounted street price of ~$229, the Sennheiser Momentum True Wireless 4 offers an irresistible balance of audiophile tuning and modern connectivity.
Buy the Sennheiser MTW4 if:
- You prioritize sound quality, rich bass texture, and musical dynamics above all else.
- You own a Snapdragon Sound Android smartphone and want to experience true aptX Lossless wireless audio.
- You want long single-charge battery life (7h 45m measured) with wireless Qi charging.
- You want future-proof Auracast and LE Audio support.
Skip the Sennheiser MTW4 if:
- You have small ears and find larger, barrel-shaped earbuds uncomfortable.
- Your top priority is maximum ANC silence on airplanes (the Bose QuietComfort Ultra Earbuds remain superior).
- You conduct daily conference calls outdoors in windy environments.
Sources
Every acoustic measurement and battery runtime in this review was retrieved directly from published testing:
- SoundGuys: Sennheiser Momentum True Wireless 4 Review
- RTINGS: Sennheiser Momentum True Wireless 4 Review
- What Hi-Fi?: Sennheiser Momentum True Wireless 4 Review
- Tom's Guide: Momentum True Wireless 4 vs MTW3
- Tom's Guide: Cambridge Audio M100 vs Sennheiser MTW4
- Sennheiser Hearing: Momentum True Wireless 4 Specifications
*Published: October 17, 2026. Last updated: October 17, 2026.* *TechSilico does not test hardware in-house. Every measurement, acoustic attenuation score and battery runtime is credited directly to the laboratory test suite that conducted it.*
Synthesized Lab Benchmarks & Accreditations
Every metric above is cross-examined against primary technical documentation and independent acoustic/silicon testing facilities:
The Sennheiser MOMENTUM True Wireless 4 provides an average of 83% attenuation of ambient noise, which places it ahead of 76% of all tested earbuds.
The adaptive ANC does an excellent job blocking out ambient sounds like background chatter or plane rumble.
They deliver a rich, mature, full-bodied and highly dynamic presentation that will satisfy listeners looking for depth.
The Momentum True Wireless 4 provides balanced, incredible audiophile sound with class-leading codec support.
Sennheiser's companion app provides extensive sound personalization and five-band EQ control.
Featuring TrueResponse transducer system, Lossless audio, and up to 30 hours playtime.
The audiophile's wireless earbud of choice, pairing class-leading fidelity with 83% noise reduction.
The Sennheiser Momentum True Wireless 4 is the clear winner for listeners who prioritize musical depth, dynamic punch, and high-resolution Bluetooth transmission above all else. While Bose still holds the ultimate crown for pure low-frequency silence, Sennheiser's combination of aptX Lossless support, 7.75-hour real battery life, and rich sound tuning make it one of the most rewarding wireless earbuds on the market.
- Audiophiles and music enthusiasts who demand rich, balanced, full-bodied sound with deep bass extension.
- Android users with Qualcomm Snapdragon Sound smartphones capable of streaming CD-quality aptX Lossless audio.
- Commuters who want robust active noise cancellation (83% measured attenuation) and long 7.5+ hour battery life.
- Gym-goers who need IP54 dust and sweat resistance with secure silicone ear fin stabilizers.
- Users with small ear canals who experience discomfort from larger, chunky earbud housings.
- Frequent travelers who prioritize maximum possible ANC silence above sound quality (Bose remains king).
- Business professionals who conduct critical voice calls in loud, windy outdoor environments.
Frequently Asked Questions
How effective is the noise cancellation on the Sennheiser Momentum True Wireless 4?
In SoundGuys' standardized laboratory testing, the Momentum True Wireless 4 achieved an average of 83% noise reduction across the audible spectrum. This places it in the top 24% of all wireless earbuds tested, effectively eliminating office chatter and public transit hum.
How long does the battery last with ANC turned on?
SoundGuys measured 7 hours and 45 minutes of continuous playback at 75 dB(SPL) with active noise cancellation enabled. With the fabric-wrapped charging case, total battery life extends to approximately 30 hours.
Do the Sennheiser MTW4 earbuds support aptX Lossless?
Yes, powered by Qualcomm's S5 Sound Gen 2 audio platform and Bluetooth 5.4, the MTW4 supports aptX Lossless. When paired with a compatible Snapdragon Sound smartphone, it can transmit bit-perfect CD-quality audio (16-bit / 44.1kHz) without lossy compression.
Are these earbuds good for working out and running?
Yes, the MTW4 features an upgraded IP54 dust and splash resistance rating, protecting it against heavy sweat and rain. It also includes interchangeable silicone ear fins that lock securely into the concha of your ear during vigorous exercise.
How do they compare to the Bose QuietComfort Ultra Earbuds?
The Bose QuietComfort Ultra Earbuds hold an edge in active noise cancellation, isolating deep bass drone and jet engine rumble more aggressively. However, the Sennheiser MTW4 delivers noticeably richer musical fidelity, broader codec support (aptX Lossless), and a longer single-charge battery runtime.
