Every part of Sony's WF-1000XM4 headphones has been redesigned. For example, the Integrated Processor V1, specially designed by Sony to suppress more noise than ever before, a driver with improved performance,...
Stiftung Warentest32 neue Bluetooth-Kopfhörer im TestReleaseDecember 2021
New in Stiftung Warentest's headphone comparison: 32 current in-ear and headband headphones. One of them delivers top sound, another is top fit for sports. In addition to the test winners, the current test offers many other good headphones. With long battery runtimes of up to almost 86 hours, the headphones with earpieces scored particularly well...
CHIP OnlineSingle testReleaseJuly 2021
Excellent noise cancellation
Long runtime, powerful fast-charging technology
No Bluetooth multiple connections
Case could look a little more upmarket
The Sony WF-1000XM4 is a first-class in-ear headphone that performs at the top of almost all our test categories. The balanced, warm sound is fun in all genres. In addition, they can be flexibly adjusted to your own taste via Sony's equaliser. The very long battery life paired with an effective fast-charging technology does not pose any problems even for constant users...