True Wireless
Sony WF-1000XM4
84Great
$199
Full review dataSony WF-1000XM4 vs Technics EAH-AZ70W: which should you buy?
On aggregated review scores the Sony WF-1000XM4 comes out ahead with an HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Sony WF-1000XM4 - Great overall at around $199.
True Wireless
Technics EAH-AZ70W
78Great
$150
Full review dataScore 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
Technics EAH-AZ70W
Sound8.0
Noise cancelling8.5
Battery6.5
Calls7.0
Value7.0
Specifications
| Spec | Sony WF-1000XM4 | Technics EAH-AZ70W |
|---|---|---|
| Type | True Wireless | True Wireless |
| Price (USD) | $199 | $150 |
| HearWiki score | 84 / 100 · Great | 78 / 100 · Great |
| Released | 2021 | 2020 |
| Audio | ||
| Driver | 6 mm | 10 mm, Graphene coated |
| Driver size | 6 mm | 10 mm |
| Drivers per side | 2 | 2 |
| Frequency response | 20 Hz - 40,000 Hz | 20Hz-20kHz |
| Wireless | ||
| Bluetooth | 5.2 | Bluetooth |
| Bluetooth version | 5.2 | 5.0 |
| Codecs | SBC, AAC, LDAC | SBC, AAC |
| Multipoint pairing | Yes | No |
| Wireless range | 10 m | 10 m |
| Battery | ||
| Battery life | 12 h | - |
| Battery life (ANC on) | 8 h | 6.5 h |
| Battery incl. case | 24 h | 19.5 h |
| Full charge time | 90 min | 120 min |
| Quick charge | 5 min = 1 h | 15 min = 70 min |
| Wireless charging | Yes | No |
| Features | ||
| Active noise cancelling | - | Yes |
| ANC type | adaptive | adaptive |
| Transparency mode | - | Yes |
| Companion app | - | Yes |
| Custom EQ | - | No |
| Wear detection | - | No |
| Controls | - | touch |
| Voice assistant | - | Amazon Alexa |
| Design | ||
| Weight | 41.1 g | 7 g |
| Case weight | 41 g | 65 g |
| Water resistance | IPX4 | IPX4 |
| USB-C | - | Yes |
| Calls | ||
| Microphones | - | 1 |
| Call noise reduction | - | MEMS mic |
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
Technics EAH-AZ70W
The Technics EAH-AZ70W is a polished first true-wireless entry that impresses with rich, detailed audio and strong hybrid noise cancellation. It pairs a comfortable, premium build with a capable app and good call quality, though its battery life is merely average and it lacks some modern conveniences like multipoint pairing or EQ customization. Overall, it's a solid choice for sound-first listeners who prioritize ANC over extra features.
- Pro:Excellent sound quality with clear detail
- Pro:Effective hybrid noise cancellation
- Pro:Premium, comfortable build
- Con:Battery life falls short of claimed figures
- Con:No multipoint Bluetooth pairing
- Con:No built-in EQ adjustments
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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