True Wireless
Lypertek SoundFree S20
68Good
$70
Full review dataLypertek SoundFree S20 vs OnePlus Buds Pro 4: which should you buy?
On aggregated review scores the OnePlus Buds Pro 4 comes out ahead with an HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: OnePlus Buds Pro 4 - Great overall at around $130.
True Wireless
OnePlus Buds Pro 4
84Great
$130
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Lypertek SoundFree S20
Sound7.5
Battery7.0
Calls5.4
Value8.0
OnePlus Buds Pro 4
Sound8.5
Noise cancelling8.0
Battery8.5
Calls7.5
Value9.0
Specifications
| Spec | Lypertek SoundFree S20 | OnePlus Buds Pro 4 |
|---|---|---|
| Type | True Wireless | True Wireless |
| Price (USD) | $70 | $130 |
| HearWiki score | 68 / 100 · Good | 84 / 100 · Great |
| Released | 2021 | 2026 |
| Audio | ||
| Driver | dynamic | dual drivers; 11mm woofer + 6mm tweeter |
| Driver size | 6 mm | 11 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 20Hz-20kHz | 10Hz-40kHz |
| Wireless | ||
| Bluetooth | 5.x | 5.4 |
| Bluetooth version | 5.0 | - |
| Codecs | SBC, AAC | SBC, AAC, LHDC 5.0 |
| Multipoint pairing | No | Yes |
| Latency | - | 47 ms |
| Wireless range | - | 10 m |
| Battery | ||
| Battery life | 8 h | 13 h |
| Battery life (ANC on) | - | 7 h |
| Battery incl. case | 48 h | 45 h |
| Full charge time | - | 70 min |
| Quick charge | 15 min = 2 h | 10 min = 11 hours playback |
| Wireless charging | Yes | Yes |
| Features | ||
| Active noise cancelling | No | Yes |
| ANC type | - | adaptive |
| Transparency mode | - | Yes |
| Companion app | - | Yes |
| Custom EQ | - | Yes |
| Wear detection | - | Yes |
| Controls | - | touch |
| Voice assistant | - | yes |
| Design | ||
| Weight | 5 g | 4.73 g |
| Case weight | - | 50.62 g |
| Water resistance | IPX5 | IP55 |
| USB-C | Yes | Yes |
| Model code | - | OnePlus Buds 4 |
| Calls | ||
| Microphones | - | 3 |
What reviewers said
Lypertek SoundFree S20
These budget-friendly true wireless earbuds deliver a lively, clear sound that punches above their price class, with excellent battery life and reliable controls. They offer practical extras like wireless charging and quick charging, though they skip higher-end codecs and some advanced features. Overall, they're a solid pick for listeners wanting engaging audio without breaking the bank.
- Pro:Engaging, clear sound with good detail
- Pro:Exceptional battery life with charging case
- Pro:Convenient wireless charging and quick charge
- Con:No aptX or AAC codec support, only SBC
- Con:Bass response is somewhat restrained
- Con:No Bluetooth multipoint connectivity
OnePlus Buds Pro 4
The OnePlus Buds Pro 4 are a well-rounded pair of true wireless earbuds that deliver impressive audio, adaptive noise cancellation, and strong battery life for their price. They're particularly suited for active lifestyles thanks to their IP55 rating and secure fit, with a feature set that includes multipoint, wireless charging, and customizable EQ. Overall, they offer excellent value and perform above their price point across most key areas.
- Pro:Rich dual-driver sound with LHDC support
- Pro:Effective adaptive ANC and transparency mode
- Pro:Long battery life with wireless charging case
- Con:Touch controls may require a learning curve
- Con:No official mention of wear detection
- Con:Slightly bulky case compared to rivals
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
Compare something else
Swap either side out, or start again from the picker.