XIAOWTEK S66
Anker Space A40
What Buyers Say
XIAOWTEK S66
The overwhelming majority of users are highly satisfied with these S66 true wireless earbuds, praising their excellent value for money. The sound quality is consistently described as clear with good bass, and the Bluetooth connection is fast and stable. Comfort and secure fit are frequently highlighted, along with the practical LED battery display on the charging case. A small minority found them uncomfortable or prone to pausing when adjusted.
Pros
- Excellent sound quality for the price
- Comfortable and secure fit
- Fast and stable Bluetooth connection
- Good battery life with LED display case
- Good value for money
Cons
- Too sensitive touch controls causing call drops
- Uncomfortable fit for some users
- Earbuds may fall out easily
- Touch controls can be cumbersome
- Volume control requires multiple taps
Anker Space A40
The Soundcore Space A40 earbuds are widely praised for their excellent sound quality, customizable EQ via the app, and strong noise cancellation. Users appreciate the long battery life, fast charging, and comfortable fit with multiple ear tip sizes. Some note that the ANC is not as powerful as premium competitors and that Bluetooth connection can occasionally drop in bumpy vehicles or certain environments. Overall, they are considered great value for the price.
Pros
- Excellent sound quality
- Customizable EQ via app
- Good noise cancellation
- Long battery life
- Fast charging
Cons
- ANC not as strong as premium competitors
- Occasional Bluetooth connection drops
- Touch controls limited to certain options at once
- Battery life slightly less than advertised
- Left ear discomfort for some users
Scores
Specifications
| XIAOWTEK S66 | Anker Space A40 | |
|---|---|---|
| Design | ||
| Form Factor | in-ear | in-ear |
| Wearing Style | true wireless | true wireless |
| Ear Tips | l | 5 sizes of silicone ear tips |
| Weight | 0.09 kg | 0.06 kg★ |
| Audio | ||
| Driver Type | dynamic | dynamic |
| Driver Size | 13.399999618530273 mm★ | 11 mm |
| Drivers | 1 | 2★ |
| Freq Min | — | 20 Hz★ |
| Freq Max | — | 20 kHz★ |
| Impedance | — | 16 Ω |
| Hi-Res Audio | — | ✓★ |
| Codecs | Wireless Earbuds, Bluetooth 5.4 Headphones with 50H Playback, Deep Bass Stereo Ear Buds Clear Calls with LED Power Display, IPX7 Waterproof, in-Ear Earphones with Mic for Phone/Android/iPad, Jet Black | LDAC |
| Surround | — | Soundcore by Anker Space A40 Auto-Adjustable Active Noise Cancelling Wireless Earbuds, Reduce Noise by Up to 98%, 50H Playtime, Hi-Res Sound, App Customization, Wireless Charge (Renewed) Blue (Refresh |
| Noise Control | ||
| ANC | ✓ | ✓ |
| ANC Type | hybrid | adaptive |
| Transparency | — | ✓★ |
| Connectivity | ||
| Wireless | ✓ | ✓ |
| Bluetooth | 5.4★ | 5.2 |
| Multipoint | — | ✓★ |
| Wired Connector | Bluetooth | Bluetooth |
| Earbud Battery | ||
| Battery Life | 8 hrs | 10 hrs★ |
| Charge Time | — | 2 hrs★ |
| Fast Charging | Yes★ | 10 min for 4 hours playback |
| Charging | — | USB-C★ |
| Case Battery | ||
| Case Battery | 50 hrs | 50 hrs |
| Case Charging | — | USB-C★ |
| Wireless Charging | — | ✓★ |
| Microphone | ||
| Microphone | ✓ | ✓ |
| Mic Count | 2 | 6★ |
| NC Mic | ✓ | ✓ |
| Features | ||
| Voice Assistant | — | Siri, Google Assistant |
| Touch Controls | ✓ | ✓ |
| App | — | soundcore |
| Bone Conduction | — | ✗ |
| Water Resistance | IPX7 | IPX4 |
Pros & Cons
XIAOWTEK S66
- Strong user sentiment (92nd percentile)92nd %ile
- Strong social proof (90th percentile)90th %ile
- Strong battery (89th percentile)89th %ile
- Strong anc (86th percentile)86th %ile
- Below average build (34th percentile)
Anker Space A40
- Strong mic (98th percentile)98th %ile
- Strong connectivity (97th percentile)97th %ile
- Strong anc (97th percentile)97th %ile
- Strong sound (94th percentile)94th %ile
Verdict
Scores 85 overall, wins 7 of 7 usage categories and 13 of 35 specs.