The WH-1000XM4 have an RRP of £350 and on initial inspection little has changed for the fourth edition of the 1000X line, with its understated design. The high-quality plastic body is well made and lightweight at 254g but doesn’t feel as premium as some metal or carbon fibre competitors that weigh more than 300g.
They are some of the lightest-feeling headphones you can buy, matching the longstanding comfort kings, the Bose QC35 II. The ear cups are well padded with a gentle, even pressure on the side of your head while a soft leatherette headband sits on your dome. It’s easy to forget you are wearing them apart from when the headband slips forward when you tilt your head to look down.
The XM4 are a regular set of Bluetooth 5.0 headphones, making them compatible with most Bluetooth-sporting phones, tablets, computers and other devices. They support the universal SBC and AAC audio formats used by most devices. But they also support Sony’s high-resolution LDAC Bluetooth audio format that is compatible with many Android devices for some of the highest-quality wireless audio. (...)
The XM4 have some of the best active noise-cancelling technology available, with a level of control that goes beyond most, effectively reducing most droning and low-frequency sound as well as some speech and other more sudden noise, matching the best from Bose.
Using the app you can personalise the noise-cancelling to take into account hair, glasses and other things that effect the seal of the ear cups, while a pressure optimiser that can determine whether you are on the ground or in the air helps when flying versus just the commute.
These are some of the best-sounding Bluetooth headphones you can buy, producing the sort of audio that has you discovering new nuances in well-worn tracks, putting them in the same league as the B&W PX7 and Apple’s AirPods Max.
They are not neutral, with a default sound that is more mid-bass heavy than some competitors, but they produce well-controlled, deep and full bass, warm mids and sparkling high notes. Unlike many rivals, they have a full equaliser in the app to customise the sound to your liking, as well as music enhancement systems such as Sony’s DSEE Extreme upscale audio to revive tones lost because of compression at the expense of battery life.
They do an excellent job of bringing the best out of most music genres, from pounding bass lines in high-energy electronica and a raw energy in grunge to sumptuous tones for jazz and soul and a wide sound profile for grand orchestral scores. Preservation of detail even in super complex tracks is top notch, while they also sound great for movie soundtracks, with vocals preserved over the top of powerful bass.
Image: Samuel Gibbs/The Guardian