Has Active Noise Cancellation (Noise Control)
Sony WF 1000XM4
✓
Bang & Olufsen Beoplay EX ✓
Active noise cancellation makes use of advanced technology to reduce ambient sounds. ANC works when, it detects and analyzes the sound pattern outside and inside the earbud and after generates a mirror signal to cancel it out. Simply put, it's like having +1 (sound from your surrounding) and producing -1 (inverted noise) to make 0 thus "diluting" the noise.
Bang & Olufsen Beoplay EX have Active Noise Cancellation allowing you to listen at lower levels of volume, good for your ears since you don't need to crank up the earbuds volume to overcome background noise.
The Sony WF 1000XM4 too have Active Noise Cancellation which makes both earbuds ideal for plane rides and rush hour travels. The Bang & Olufsen Beoplay EX and Sony WF 1000XM4 operate with different noise cancellation settings, pick the mode that suits your commute or that suites your chill time.
Has Passive Noise Reduction
Sony WF 1000XM4
✓
Bang & Olufsen Beoplay EX ✓
The Bang & Olufsen Beoplay EX sit well in place, this creates a sound seal that tones down your environment noise well as preventing the device sound from leaking out at the same.
Both of these devices have passive noise reduction which means that both limit ambient noise instead of actively using technology to cancel it out.
Driver Unit Size
Sony WF 1000XM4
6mm
Bang & Olufsen Beoplay EX 9.2mm
Bang & Olufsen Beoplay EX have a unit size of 9.2mm in diameter, the bigger the unit the more powerful, and can produce better bass.
A driver unit is basically a mini speaker that produces sound in the earbuds, its size dictates the loudness of the earbuds.
Sony WF 1000XM4 driver unit is 6mm in diameter,
which implies that they have a smaller driver unit than that of Bang & Olufsen Beoplay EX by 3.2mm
, a common assumption that driver units of a bigger size automatically produce better sound quality.
However, large drivers usually have difficulty producing high frequencies so yes, larger drivers can generate louder sound, but this does not imply that they produce better quality sound.
Lowest Frequency
Sony WF 1000XM4
20Hz
Bang & Olufsen Beoplay EX 20Hz
The Bang & Olufsen Beoplay EX's lowest frequency is at 20Hz, low-frequency response measures if and how well a particular audio device generates low frequencies that can be heard, and if it makes any changes to the signal on its way through.
Sony WF 1000XM4's lowest frequency is at 20Hz, this implies that
both devices can make sound with equal bass
Highest Frequency
Sony WF 1000XM4
40000Hz
Bang & Olufsen Beoplay EX 20000Hz
The Bang & Olufsen Beoplay EX's highest frequency is at 20000Hz, high-frequency response measures if and how well an audio component makes high human frequencies and if it makes any changes to the signal on its way through.
Sony WF 1000XM4's highest frequency is at 40000Hz, this means that
Sony WF 1000XM4 produce a clearer and crispier treble than the Bang & Olufsen Beoplay EX
Sound Pressure Level
Sony WF 1000XM4
105dB/mW
Bang & Olufsen Beoplay EX ✗
The sound pressure level, is the pressure level of sound, in decibels, dB, Sony WF 1000XM4's measurement is 105dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
Has A Neodymium Magnet
Sony WF 1000XM4
✓
Bang & Olufsen Beoplay EX ✗
Sony WF 1000XM4 have neodymium magnets, when used in audio devices produce a higher sensitivity and substantial sound output while using less power. They can help produce music at quite a high sound pressure level, with the use of high magnetic flux.
A Review By Comparison Of The Audio Technica Ath Cks50Tw Vs. Bang & Olufsen Beoplay Ex