Compare Poly Voyager Free 20 Earbuds vs Sony WF-C710N Earbuds

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

ANC is the clearest consensus strength, repeatedly described as excellent, remarkably strong, or unusually effective for the price.

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

Android compatibility is good for basic use, helped by Google Fast Pair, though Android users lose out on high-end codecs.

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

The Sony Sound Connect app is widely treated as a strength because it exposes ANC, EQ, battery, adaptive sound, firmware, and control options, though a few users found setup or app reliability frustrating.

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

aptX support is absent in the reviews that discuss codecs, and reviewers explicitly called that a downside for serious listeners.

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

Bass is one of the strongest and most repeated positives, often described as punchy, powerful, deep, or weighty, though a few reviewers said it can become too heavy or crowd the mix.

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

Battery life is another strong point, with many reviews confirming around 8.5 to 9.5 hours per charge or roughly 30 hours with the case, though one reviewer got less in mixed-mode use.

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

Bluetooth support is current and stable for most reviewers, centered on Bluetooth 5.3 with AAC/SBC and useful pairing features.

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

Build quality is generally acceptable to good for the price, but the plastic construction creates some mixed impressions.

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

The included cable drew criticism for being very short.

The only direct cable feedback was negative: PCMag wanted a longer USB-C-to-USB-C cable instead of the included short cable.

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

Carry case quality is mixed: some reviewers liked the compact, smooth, sturdy case, while others criticized the plasticky feel, size, or hinge confidence.

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

Charging is solid thanks to USB-C and quick-charge support, but the lack of wireless charging is a repeated limitation.

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

Codec support is a major limitation: reviewers repeatedly note AAC/SBC only, with no higher-end codec support.

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

Comfort during long use is a strong positive, with multiple reviewers wearing the earbuds for hours or all day without discomfort.

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

The Glass Blue transparent design is memorable and often praised, though a minority felt it looked toy-like or cheap.

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

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

Fit is highly ear-dependent: many reviewers found a snug, comfortable seal, while others struggled with security during workouts.

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

Ear tip options are adequate but basic, typically three sizes, and several reviewers wished for fins, wings, hooks, or more fit help.

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

EQ customization is a major strength, with five-band/custom EQ, Clear Bass, and Find Your Equalizer options repeatedly noted.

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

Frequency balance is broadly good for the category, but the evidence also points to a bass-leaning or dark tuning and some treble-region limitations.

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

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

Included accessories are basic: reviewers mention spare ear tips, manuals, and a short charging cable, with no fins, hooks, or premium cable.

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

Instrument separation was repeatedly praised in music examples, with reviewers hearing layered vocals, stereo placement, and instruments that avoided blending together.

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

Integrated microphones are present for ANC and voice pickup, and reviewers generally found the hardware useful for calls and noise processing.

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

LDAC support is consistently absent, which several reviewers flagged as surprising or disappointing from Sony.

Lossless audio support is effectively absent, with at least one review explicitly noting no aptX lossless or LDAC.

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

Maximum-volume clarity is acceptable but not flawless, with TechRadar noting some loss of dynamic nuance when chasing exuberance and volume.

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

Microphone noise reduction is generally effective against background noise and wind, though the voice can degrade in busier environments.

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

Call quality is mostly serviceable to good, especially indoors, but some reviewers reported choppiness, unnatural voice quality, or weaker outdoor performance.

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

Midrange clarity is generally good, especially for vocals, but reviewers who pushed bass or listened at higher volumes noted that mids can become constrained or muddy.

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

Cross-device use is supported in practice, with one reviewer easily moving between a Pixel phone and MacBook through multipoint.

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

Multipoint is a useful upgrade and generally works well, although one reviewer reported buzzing and software issues when using dual-device connectivity.

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

Passive isolation benefits from the ear tips and secure seal, with reviewers noting strong isolation even before ANC is enabled.

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

Portability is generally good because the case is pocketable, though a few reviewers found it bulkier than rivals.

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

Preset EQs are useful and often named directly, especially Bass Boost, Excited, Bright, and vocal-oriented presets.

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

Wear detection and auto-pause are consistently praised as useful upgrades that work smoothly.

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

Sidetone is weak in the one review that addressed it, with the caller not hearing enough of their own voice back through the earbuds.

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

Smudge resistance is mixed: one reviewer said the case avoided fingerprints, while another found it prone to fingerprints and dust.

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

Setup and software are mostly straightforward, but there are caveats around Sony account/location prompts and occasional connection behavior.

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

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

Reviewers consistently described the overall sound as pleasing, clean, dynamic, or above average for the price, with only a few noting that it is not flagship-level or needs EQ adjustment.

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

Depth and three-dimensional presentation are positive in the limited reviews that discuss soundstage depth.

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

A few reviewers praised stereo imaging and width, describing clearly defined space and convincing left-right placement for the price.

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

Spatial audio support is present through Sony 360 Reality Audio, but reviewers often framed it as niche, limited by service support, or not a major draw.

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

Stability is mixed: many reviewers had no fallouts in normal use, while several warned the earbuds can slip during running or exercise.

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

Touch controls are mostly responsive and improved by the concave surface, but volume gestures and limited customization drew recurring complaints.

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

Transparency and ambient modes are useful and often adjustable, but reviewers split on quality, with some praising conversation usefulness and others noting hiss or activation delay.

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

Treble feedback is mixed-positive: several reviewers heard crisp highs, while measurement-focused and critical reviews noted missing upper-treble detail or occasional distortion.

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

USB-C is consistently present for wired charging, usually on the rear of the case or through the included cable.

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

Value for money is one of the strongest themes, with reviewers repeatedly praising the ANC, sound, features, and battery life at roughly the $100-$130 tier.

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

Voice assistant support is present through long-press or hold gestures, with both Google/Siri or generic assistant access mentioned.

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

Volume output appears strong enough for loud listening, though the main complaints around volume involved awkward touch controls rather than weak loudness.

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

The IPX4 rating gives basic splash and sweat resistance, making the earbuds suitable for light workouts or rain but not serious water exposure.

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

Reviewers repeatedly note the low earbud weight, which helps them feel comfortable and easy to forget during use.