True Wireless
Sony WF-1000XM4
84Great
$199
Full review dataSony WF-1000XM4 vs Soul Electronics Run Free Flex Pro 2: which should you buy?
Specs, scores and condensed review verdicts for the Sony WF-1000XM4 vs Soul Electronics Run Free Flex Pro 2, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Score breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Sony WF-1000XM4
Sound8.5
Noise cancelling9.0
Battery7.5
Calls7.0
Value7.5
Soul Electronics Run Free Flex Pro 2
No sub-scores yet - not enough rated reviews.
Specifications
| Spec | Sony WF-1000XM4 | Soul Electronics Run Free Flex Pro 2 |
|---|---|---|
| Type | True Wireless | True Wireless |
| Price (USD) | $199 | $119 |
| HearWiki score | 84 / 100 · Great | Not scored |
| Released | 2021 | 2023 |
| Audio | ||
| Driver | 6 mm | - |
| Driver size | 6 mm | - |
| Drivers per side | 2 | - |
| Frequency response | 20 Hz - 40,000 Hz | - |
| Wireless | ||
| Bluetooth | 5.2 | V4.0 + EDR with Apt-X decoder support |
| Bluetooth version | 5.2 | - |
| Codecs | SBC, AAC, LDAC | mSBC |
| Multipoint pairing | Yes | - |
| Wireless range | 10 m | - |
| Battery | ||
| Battery life | 12 h | 8 h |
| Battery life (ANC on) | 8 h | - |
| Battery incl. case | 24 h | - |
| Full charge time | 90 min | - |
| Quick charge | 5 min = 1 h | - |
| Wireless charging | Yes | - |
| Features | ||
| ANC type | adaptive | - |
| Design | ||
| Weight | 41.1 g | 17 g |
| Case weight | 41 g | - |
| Water resistance | IPX4 | - |
| Model code | - | Run Free Pro |
What reviewers said
Sony WF-1000XM4
The Sony WF-1000XM4 are high-end true wireless earbuds that excel in active noise cancellation and sound quality, with a compact 6mm driver and support for high-resolution LDAC streaming. They provide about 8 hours of playback per charge, extendable to 24 hours with the case, and include handy features like multipoint connectivity and quick charging. Their IPX4 rating makes them suitable for workouts, though the overall design is a bit bulky for some ears.
- Pro:Excellent active noise cancellation
- Pro:Rich, detailed sound with LDAC support
- Pro:Good battery life with fast charging
- Con:Bulkier fit compared to rivals
- Con:No wireless charging on the case
- Con:Touch controls can be finicky
Soul Electronics Run Free Flex Pro 2
No summary yet - we haven't aggregated enough reviews.
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.