Sony WF1000XM4 Summary

Warranty Coverage

• Some users mentioned receiving free replacements within the warranty period.
• Others faced challenges when their warranty had expired, with the repair cost quoted being high.
• A few lucky users had positive experiences with replacements, especially when the earbuds were still under warranty.
• Users highlighted issues faced when the earbuds were out of warranty, with repair costs being unpractical.
• Despite being out of warranty, some users were offered free repairs or replacements.

Battery Drain Issues

• Several users reported uneven battery drain, especially after firmware updates like 1.4.2.
• The issue of one earbud draining faster than the other, with some lasting only a few minutes, was a common complaint.
• Sony acknowledged the problems and offered free replacements, even for units out of warranty.

Active Noise Cancellation (ANC)

• Users praised Sony's ANC, noting that it effectively reduced external noises like dog barks.
• Reports confirmed that even with background music, the ANC on the WF1000XM4 significantly lowered external sounds.

Miscellaneous Issues

• Users reported experiencing sound imbalance in the earbuds, especially after software updates.
• Some users found that cleaning the earbuds or adjusting their position helped resolve sound level issues.
• Suggestions were made to reach out to Sony customer service for potential solutions or replacements.

Alternatives

• Some users shared that they switched to other brands like Sennheiser MTW3s or AirPods Pro due to issues with the Sony WF1000XM4.
• Alternatives like Bose earbuds were considered by those who faced persistent problems with their Sony earbuds.

Overall, while the Sony WF1000XM4 earbuds were praised for their sound quality and ANC features, users encountered various issues such as battery drain, sound imbalance, and warranty-related challenges. Sony's customer service was commended for offering free replacements and repairs to address these issues.