Has Active Noise Cancellation (Noise Control)
Sony WF 1000XM4
✓
Sony WF 1000XM3 ✓
ANC makes use of advanced kind of tech to actively cancel noise. How it works, it studies the sound pattern of incoming noise and then generates a mirror signal to counter it. Simply put, it's like taking +1 (noise) and adding -1 (counter sound by the device) giving zero therefore "diluting" the noise.
The Sony WF 1000XM3 have ANC enabling you to listen at lower levels of volume, good for your ears since you don't need to crank up the earbuds volume to outcompete background noise.
The Sony WF 1000XM4 too have Active Noise Cancellation which makes both devices ideal for plane rides and morning commutes. Each operate with different noise cancellation modes, pick the setting that suits your travel or that suites your chill time.
Has Passive Noise Reduction
Sony WF 1000XM4
✓
Sony WF 1000XM3 ✓
Sony WF 1000XM3 stay tightly in place, this creates a sound seal that tones down background noise while preventing the device music from leaking out .
Both of these devices have passive noise reduction this implies that they tone down ambient noise instead of actively using technology to cancel it out.
Driver Unit Size
Sony WF 1000XM4
6mm
Sony WF 1000XM3 6mm
The Sony WF 1000XM3 have a unit size of 6mm in diameter, bigger drivers are more powerful, therefor producing better bass.
The driver unit is basically a mini speaker that produces sound in the earbuds, the unit size determines the loudness of the earbuds.
Sony WF 1000XM4 driver unit is 6mm in diameter,
making both devices similar in how loud their sound can get
, 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 yeah, larger drivers can generate louder sound, but this does not imply that they deliver better quality sound.
Lowest Frequency
Sony WF 1000XM4
20Hz
Sony WF 1000XM3 20Hz
The Sony WF 1000XM3's lowest frequency is at 20Hz, low-frequency response inidcates how well an audio device produces low audible frequencies and if it alters 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
Sony WF 1000XM3 20000Hz
Sony WF 1000XM3's highest frequency is at 20000Hz, high-frequency response indicates how well an audio component makes high recognizable frequencies and if it makes any adjustments to the signal while at it.
Sony WF 1000XM4's highest frequency is at 40000Hz, this means that
Sony WF 1000XM4 can generate a clearer and crispier treble than the Sony WF 1000XM3
Sound Pressure Level
Sony WF 1000XM4
105dB/mW
Sony WF 1000XM3 ✗
SPL, 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
✓
Sony WF 1000XM3 ✓
Sony WF 1000XM3 have neodymium magnets, if 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 SPL, using high magnetic flux.
Sony WF 1000XM4 have it too, devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. It is also known that they have more bass and clearer high notes.
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