Compare Poly Voyager Free 20 Earbuds vs Sennheiser Momentum True Wireless 4 Earbuds

P1 Poly Voyager Free 20 Earbuds
P2 Sennheiser Momentum True Wireless 4 Earbuds

Comparison Takeaways

Poly Voyager Free 20 Earbuds

Where It Has the Edge

  • Find My is 3.8 vs 2.1. Find My-style location support appears in Poly Lens, but evidence is limited to last-known or location features.
  • Microphone noise reduction is 4.4 vs 3.7. Noise reduction for calls was praised for reducing background noise and helping voices stay clear.
  • Portability/foldability is 4.4 vs 3.7. Portability was helped by a slim case that fits in a pocket.
  • Weight comfort is 4.6 vs 4.0. The earbuds’ low weight was repeatedly tied to easy long-session comfort.

Sennheiser Momentum True Wireless 4 Earbuds

Where It Has the Edge

  • Touch control responsiveness is 4.5 vs 1.0. Touch controls are generally described as responsive and customizable, with quick mode switching. Some users simply dislike touch...
  • aptX is 4.7 vs 2.0. aptX support (including Adaptive/Lossless on compatible devices) is frequently praised as a differentiator for Android users. Several reviewers...
  • Codec support is 4.7 vs 2.3. Codec support is a major selling point, repeatedly cited as future-proof: Bluetooth 5.4 with broad codec options, plus...
  • Preset EQ profile quality is 4.5 vs 2.3. Sound Personalization and presets are often highlighted as genuinely useful, helping users correct tonal preferences and automate settings...
Average score
Product 1: Poly Voyager Free 20 Earbuds
3.5
Product 2: Sennheiser Momentum True Wireless 4...
4.3
Active noise cancellation
Product 1: Poly Voyager Free 20 Earbuds
4.2

ANC was one of the strongest consensus points, repeatedly described as effective against office, commute, fan, and low-frequency noise.

Product 2: Sennheiser Momentum True Wireless 4...
4.2

ANC performance is widely considered good to very good, especially for steady low-frequency noise (commutes, travel). Multiple sources still rank Sony or Bose as stronger overall, with some higher-frequency or sudden sounds bleeding through. Reviews highlight flexible ANC control via the app, including adaptive behavior and anti-wind options. The tradeoff is that some modes can reduce cancellation strength compared with a full-max setting.

Android compatibility
Product 1: Poly Voyager Free 20 Earbuds
4.3

Android compatibility was supported by app availability and Android, Pixel, or Samsung testing.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Android compatibility is frequently highlighted as the best match for this product, since Android devices can access more codecs and future-facing features. Most reports describe stable performance on Android, with fewer issues than on iOS in some tests.

App
Product 1: Poly Voyager Free 20 Earbuds
3.9

The Poly Lens app is important and feature-rich on mobile, but desktop functionality and firmware workflows drew criticism.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

The Smart Control app is widely praised for depth and polish, offering fit tests, customization, updates, and sound tools. The main critique is that it can feel feature-dense or that certain controls (like EQ depth) could be more advanced.

aptX
Product 1: Poly Voyager Free 20 Earbuds
2.0

aptX support was not confirmed; the only evidence flags uncertainty around advanced codec support.

Product 2: Sennheiser Momentum True Wireless 4...
4.7

aptX support (including Adaptive/Lossless on compatible devices) is frequently praised as a differentiator for Android users. Several reviewers also note that audible gains can be subtle versus AAC, and depend heavily on phone support and content quality.

Audio-video sync accuracy
Product 1: Poly Voyager Free 20 Earbuds
No score yet
Product 2: Sennheiser Momentum True Wireless 4...
4.4

For video and casual gaming, sync and latency are generally reported as good, aided by low-latency modes and modern Bluetooth. Competitive gaming may still benefit from dedicated dongle-based solutions, but most users should find A/V sync acceptable.

Bass performance
Product 1: Poly Voyager Free 20 Earbuds
3.5

Bass was divisive: some reviewers heard strong or punchy low end, while others found it timid or lacking energy.

Product 2: Sennheiser Momentum True Wireless 4...
4.6

Bass is repeatedly described as deep, punchy, and well controlled, adding weight without drowning details. Some listeners feel the stock bass tilt is more consumer-friendly than neutral, and prefer trimming it via EQ.

Battery
Product 1: Poly Voyager Free 20 Earbuds
4.4

Battery life was broadly praised, commonly around 8 hours with ANC and longer with ANC off or the case.

Product 2: Sennheiser Momentum True Wireless 4...
4.4

Battery life is typically around 7 to 7.5 hours per charge in many tests, with ANC reducing runtime in some reports. With the case, total endurance is commonly cited around 30 hours, which is competitive for the premium class.

Bluetooth
Product 1: Poly Voyager Free 20 Earbuds
4.4

Bluetooth support was strong overall, with Bluetooth 5.4, stable pairing, and good range mentioned despite setup quirks.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Bluetooth stability is generally strong, with several reviewers noting fewer dropouts and good on-the-go continuity. A few reports mention iPhone-related cutouts or codec-dependent behavior (e.g., stereo-to-mono at distance with high-res modes).

Build quality
Product 1: Poly Voyager Free 20 Earbuds
3.1

Build quality was mixed: earbuds were described as solid or well built, while the case and hinges felt fragile.

Product 2: Sennheiser Momentum True Wireless 4...
4.6

Build quality is commonly described as solid and durable, with premium materials and a robust case. Overall impressions point to a flagship-level fit and finish.

Button control usability
Product 1: Poly Voyager Free 20 Earbuds
2.9

Control usability was mixed: push buttons prevent accidental touches but often push the buds into the ear and require pressure.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Cable quality
Product 1: Poly Voyager Free 20 Earbuds
2.0

The included cable drew criticism for being very short.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Carry case quality
Product 1: Poly Voyager Free 20 Earbuds
3.2

Case quality was split: reviewers liked magnets, size, and style, but several criticized plastic feel, loose hinges, and fingerprints.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Case quality is consistently rated premium, with a fabric exterior and solid feel. The main knock is size rather than materials or durability.

Charging
Product 1: Poly Voyager Free 20 Earbuds
4.5

Charging was strong, with repeated fast-charge mentions plus USB-C and wireless charging positives.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Charging is a strong point: USB-C and Qi wireless charging are standard, and fast top-ups are commonly quoted around 8 to 10 minutes for about an hour of playback. Battery-protection and intelligent charging modes trade speed and max capacity for longevity.

Codec support
Product 1: Poly Voyager Free 20 Earbuds
2.3

Codec support was a weak point because HP did not specify supported codecs in one review.

Product 2: Sennheiser Momentum True Wireless 4...
4.7

Codec support is a major selling point, repeatedly cited as future-proof: Bluetooth 5.4 with broad codec options, plus LE Audio/LC3 and Auracast support via updates depending on source device. iPhone users are largely limited to AAC, reducing the practical benefit.

Comfort during long use
Product 1: Poly Voyager Free 20 Earbuds
4.2

Comfort was mostly strong, with multiple reviewers reporting long wear or low fatigue, although one had soreness after a couple of hours.

Product 2: Sennheiser Momentum True Wireless 4...
4.3

Comfort is commonly rated high for a premium TWS, with stable in-ear fit for long listening. The buds are physically large, and some users with small ears or very long sessions report fatigue or pressure over time.

Design and Aesthetics
Product 1: Poly Voyager Free 20 Earbuds
4.3

The design was generally liked for its sleek, professional, black-and-gold or lightweight look.

Product 2: Sennheiser Momentum True Wireless 4...
4.4

Design is repeatedly described as premium and stylish, with new colorways and a recognizable Momentum look. Many reviews note the external design is very similar to the prior generation, so upgrades are mostly internal.

Dongle
Product 1: Poly Voyager Free 20 Earbuds
1.0

Dongle support is absent, and reviewers called out the missing USB dongle compared with more work-focused alternatives.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Eartips fit
Product 1: Poly Voyager Free 20 Earbuds
4.1

Fit was a recurring strength, aided by fit tests and tip choices, though fit still depended on ear size.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Ear tip size options
Product 1: Poly Voyager Free 20 Earbuds
4.7

Ear tip options were strong because multiple reviews confirmed four sizes or multiple tips.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Multiple ear tip sizes and fin options are a recurring positive, supporting both comfort and isolation. Some reviewers still struggle to get a consistent seal due to tip shape or softness, so fit can be somewhat ear-dependent.

Equalizer customization
Product 1: Poly Voyager Free 20 Earbuds
2.3

EQ customization was a repeated weakness, with reviewers wanting more than limited presets or a custom curve.

Product 2: Sennheiser Momentum True Wireless 4...
4.4

EQ tools are considered effective for shaping the sound, and many reviewers recommend using them to tailor bass or clarity. A few power users want a more advanced EQ than the built-in 5-band option and report limitations or compression when pushing bands.

Find My
Product 1: Poly Voyager Free 20 Earbuds
3.8

Find My-style location support appears in Poly Lens, but evidence is limited to last-known or location features.

Product 2: Sennheiser Momentum True Wireless 4...
2.1

Find-my style tracking and precision locating are not emphasized, and multiple reviewers note it is not on the same level as Apple ecosystem tracking. If you often misplace earbuds, this is a weaker point versus AirPods.

Frequency response accuracy
Product 1: Poly Voyager Free 20 Earbuds
No score yet
Product 2: Sennheiser Momentum True Wireless 4...
4.0

Measured/tonal accuracy is broadly good, but several reviewers note a mild upper-mid/high underemphasis that can read as less crisp detail out of the box. Personalization tools and EQ can compensate, and many still find the tuning musically pleasing.

Hinge durability
Product 1: Poly Voyager Free 20 Earbuds
2.2

Hinge durability was a concern because reviewers found loose hinges on the charging case.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Included accessories
Product 1: Poly Voyager Free 20 Earbuds
4.2

Included accessories were solid, with ear tips, charging case, and USB-C cable included.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Included accessories are typically appreciated, especially the multiple ear tip sizes and stabilizing fins plus USB-C cable. This variety helps users find a better seal and fit.

Instrument separation
Product 1: Poly Voyager Free 20 Earbuds
4.6

One review praised the earbuds for balancing different sounds, supporting strong instrument separation.

Product 2: Sennheiser Momentum True Wireless 4...
4.6

Instrument separation and imaging are strong, with reviewers frequently noting easy placement of instruments and clean layering. This is a recurring reason these are favored for immersive music listening.

Integrated microphone
Product 1: Poly Voyager Free 20 Earbuds
4.2

Integrated microphones are a core feature, with repeated references to three mics per bud or six noise-canceling microphones.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
LDAC
Product 1: Poly Voyager Free 20 Earbuds
2.0

LDAC support was not confirmed; the only evidence flags uncertainty around advanced codec support.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Maximum volume clarity
Product 1: Poly Voyager Free 20 Earbuds
2.7

Maximum-volume clarity was limited by peaking and high-frequency distortion in one review.

Product 2: Sennheiser Momentum True Wireless 4...
4.6

At higher listening levels, clarity is usually maintained, and multiple sources note low distortion or clean playback. The main caveat is that pushing volume higher to overcome outside noise is not ideal for hearing health.

Microphone noise reduction
Product 1: Poly Voyager Free 20 Earbuds
4.4

Noise reduction for calls was praised for reducing background noise and helping voices stay clear.

Product 2: Sennheiser Momentum True Wireless 4...
3.7

Noise reduction for calls is inconsistent across reviews. Wind remains the most common weakness, and some tests report background noise suppression that is less reliable than top competitors.

Microphone quality for calls
Product 1: Poly Voyager Free 20 Earbuds
4.2

Call quality was consistently positive, with reviewers hearing clear, understandable voice pickup.

Product 2: Sennheiser Momentum True Wireless 4...
3.9

Call mic quality is mixed: many find it fine in quiet to moderate settings, and some report clear voice pickup. Others rate it below class leaders, especially outdoors, with processing artifacts or inconsistent clarity in noisy streets.

Midrange clarity
Product 1: Poly Voyager Free 20 Earbuds
4.2

Midrange clarity was generally a strength, with repeated comments about clear vocals and mids suited to calls and podcasts.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Midrange is generally praised for natural vocals and good presence, often cited as a key strength. A few reviewers note an upper-mid dip or a darker voicing out of the box that can reduce perceived clarity until adjusted.

Multi-platform compatibility
Product 1: Poly Voyager Free 20 Earbuds
4.2

Multi-platform compatibility was strong across phones, laptops, Windows, iPhone, MacBook, Android, and general Bluetooth use.

Product 2: Sennheiser Momentum True Wireless 4...
4.1

Multi-platform use is generally good across phones and computers, but the experience is not equal across ecosystems. iPhone works reliably for basics, yet the most compelling codec and feature benefits largely land on compatible Android devices.

Multipoint connectivity reliability
Product 1: Poly Voyager Free 20 Earbuds
4.3

Multipoint was a major work-use strength across phone and laptop pairings, though one reviewer noted switching delays.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Multipoint is supported and usually works as expected for switching between two devices. Some reviewers note occasional quirks or platform-specific issues, but overall reliability is viewed as solid after firmware updates.

Noise isolation (passive)
Product 1: Poly Voyager Free 20 Earbuds
3.8

Passive isolation was decent to strong because the sealed tips fully plugged the ears before ANC was considered.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Passive isolation is strong when the seal is right, helped by multiple ear tip sizes and stabilizing fins. A few users report seal sensitivity depending on ear shape and tip stiffness, which can impact both sound and ANC.

Portability/foldability
Product 1: Poly Voyager Free 20 Earbuds
4.4

Portability was helped by a slim case that fits in a pocket.

Product 2: Sennheiser Momentum True Wireless 4...
3.7

Portability is good in-pocket for the earbuds themselves, but the fabric case is frequently described as chunky. Several reviewers accept the size as a premium tradeoff, while others prefer smaller cases for everyday carry.

Preset EQ profile quality
Product 1: Poly Voyager Free 20 Earbuds
2.3

Preset EQ options were limited to Bass, Flat, and Bright and were often described as underwhelming or too similar.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Sound Personalization and presets are often highlighted as genuinely useful, helping users correct tonal preferences and automate settings via Sound Zones. Results depend on user patience and ear fit, but most find the feature worthwhile.

Sensors
Product 1: Poly Voyager Free 20 Earbuds
4.3

Sensors were useful for wear detection, call answering, and media pause/resume behavior.

Product 2: Sennheiser Momentum True Wireless 4...
4.6

Sensors such as in-ear detection are generally reported as accurate and convenient, reliably pausing and resuming playback. This contributes to the overall flagship feel and day-to-day ease of use.

Sidetone adjustment quality
Product 1: Poly Voyager Free 20 Earbuds
1.0

Sidetone adjustment scored poorly because one reviewer said the Free 20 lacked the ability.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Smudge resistance
Product 1: Poly Voyager Free 20 Earbuds
1.5

Smudge resistance was poor, with multiple reviewers calling out fingerprints and scratches.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Software/setup simplicity
Product 1: Poly Voyager Free 20 Earbuds
3.1

Setup and software simplicity were mixed: basic setup could be straightforward, but firmware and desktop support created friction.

Product 2: Sennheiser Momentum True Wireless 4...
4.3

Setup is usually straightforward, and firmware updates address some early quirks; most reviewers describe smooth pairing and daily use. A minority report pairing oddities, platform glitches, or UI annoyances that prevent a flawless experience.

Sound leakage
Product 1: Poly Voyager Free 20 Earbuds
4.0

One review referenced a fit test for audio leakage, suggesting leakage control depends on getting a proper seal.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Sound quality
Product 1: Poly Voyager Free 20 Earbuds
4.1

Most reviewers described sound as good to excellent, especially for calls, vocals, and everyday music, though one found music compressed and shallow.

Product 2: Sennheiser Momentum True Wireless 4...
4.6

Across reviews, sound quality is a standout: rich, detailed, and engaging with a spacious presentation. A minority find the stock tuning a bit warm/dark or slightly lacking upper-mid or top-end bite, but EQ and Sound Personalization can dial in clarity.

Soundstage depth
Product 1: Poly Voyager Free 20 Earbuds
3.7

Soundstage depth was mixed, with one review finding it unexciting and another finding it immersive.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Soundstage width
Product 1: Poly Voyager Free 20 Earbuds
3.7

Soundstage impressions were mixed, ranging from solid but unexciting to spacious and immersive.

Product 2: Sennheiser Momentum True Wireless 4...
4.6

Soundstage is consistently reported as wide and immersive for true wireless, with a strong sense of space. Some describe it as more expansive than key rivals, while others call it excellent but not the most out-of-head possible.

Spatial audio
Product 1: Poly Voyager Free 20 Earbuds
1.0

Spatial audio scored low because one review explicitly said it is lacking.

Product 2: Sennheiser Momentum True Wireless 4...
2.0

Spatial audio features are not a focus here, and multiple sources note the lack of built-in spatial audio/head tracking compared with some rivals. For listeners who prioritize immersive spatial modes, this can be a deciding drawback.

Stability
Product 1: Poly Voyager Free 20 Earbuds
4.2

Stability was good, with reviewers noting no slipping, secure fit, and fit-test support.

Product 2: Sennheiser Momentum True Wireless 4...
4.4

Stability is generally strong, with fins helping keep the earbuds secure during movement and even light workouts. A small subset report fit/seal challenges that can make them feel less locked-in.

Touch control responsiveness
Product 1: Poly Voyager Free 20 Earbuds
1.0

Touch controls scored poorly because one review stated the earbuds have no touch controls.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Touch controls are generally described as responsive and customizable, with quick mode switching. Some users simply dislike touch input or note occasional mis-triggers in wet conditions, but responsiveness itself is usually strong.

Transparency mode quality
Product 1: Poly Voyager Free 20 Earbuds
3.3

Transparency mode was useful in some reviews but less consistent, with complaints about switching friction or weak amplification.

Product 2: Sennheiser Momentum True Wireless 4...
4.3

Transparency is often described as natural and adjustable, with some calling it among the best they have used. A minority report slight hiss/white noise or say it could be more lifelike compared with Apple or Bose in certain environments.

Treble clarity
Product 1: Poly Voyager Free 20 Earbuds
3.7

Treble came through clearly in some reviews, but one reviewer heard high-frequency distortion at maximum volume.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

Treble is typically smooth, airy, and non-fatiguing, with sparkle that avoids harshness. The main criticism is that the highest frequencies can feel slightly tamed or recessed for listeners who want extra bite and air.

USB-C
Product 1: Poly Voyager Free 20 Earbuds
4.4

USB-C is well supported for the case and charging cable.

Product 2: Sennheiser Momentum True Wireless 4...
4.5

USB-C charging is standard and frequently mentioned, though some note the case port placement is unconventional. In practice, wired charging is easy, and most emphasis is on the convenience of pairing USB-C with Qi wireless charging.

Value for money
Product 1: Poly Voyager Free 20 Earbuds
4.2

Value was strongest when discounted or judged against sound and ANC performance, but one review felt $150 was pricey.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Voice assistant integration
Product 1: Poly Voyager Free 20 Earbuds
3.9

Voice assistant support is present through controls, though evidence focused on activation rather than deeper integration.

Product 2: Sennheiser Momentum True Wireless 4...
No score yet
Volume output
Product 1: Poly Voyager Free 20 Earbuds
4.0

Volume output was treated as a strength in hands-on use, though evidence was limited.

Product 2: Sennheiser Momentum True Wireless 4...
4.1

Volume output is generally adequate, but at least one test found the earbuds on the quieter side, sometimes needing near-max volume for certain tracks. Most listening impressions still describe the presentation as full and satisfying at normal levels.

Water/sweat resistance rating
Product 1: Poly Voyager Free 20 Earbuds
4.2

Water and dust resistance was a positive feature across reviews, though one reviewer warned against running water.

Product 2: Sennheiser Momentum True Wireless 4...
4.4

The IP54 rating is frequently mentioned as a meaningful upgrade, making them suitable for workouts, rain, and dust exposure. They are not designed for submersion, so they remain a splash and sweat solution rather than a swim option.

Weight comfort
Product 1: Poly Voyager Free 20 Earbuds
4.6

The earbuds’ low weight was repeatedly tied to easy long-session comfort.

Product 2: Sennheiser Momentum True Wireless 4...
4.0

Weight is noticeable for some: a few reviews describe them as heavy or fatiguing after hours, while others find the distribution and fins keep them comfortable. Comfort varies significantly by ear shape and tip choice.