Has Active Noise Cancellation (Noise Control)
Sony WF 1000XM4
✓
Sennheiser Momentum True Wireless 3 ✓
Active noise cancellation uses more advanced kind of tech to actively counter noise. How it works, it studies the sound pattern of incoming noise and then inverts the soundwaves to counter it. Simply put, it's like taking +1 (sound from your surrounding) and adding -1 (inverted noise) giving zero hence "diluting" the noise.
The Sennheiser Momentum True Wireless 3 have ANC enabling you to listen at lower levels of volume, causing less ear fatigue since you don't have to crank up the device volume to overcome background sounds.
The Sony WF 1000XM4 too have Active Noise Cancellation making either of the earbuds ideal for plane rides and rush hour travels. The Sennheiser Momentum True Wireless 3 and Sony WF 1000XM4 work with different noise cancellation types, pick the mode that you prefer for travel or that suites your relaxation time.
Has Passive Noise Reduction
Sony WF 1000XM4
✓
Sennheiser Momentum True Wireless 3 ✓
Sennheiser Momentum True Wireless 3 sit well in place, creating an acoustic seal that reduces your environment sounds while preventing the device sound from leaking out at the same.
Both of these devices have passive noise reduction which implies that both reduce ambient noise without using technology to cancel it out.
Driver Unit Size
Sony WF 1000XM4
6mm
Sennheiser Momentum True Wireless 3 7mm
The Sennheiser Momentum True Wireless 3 driver unit is 7mm in diameter, the bigger the unit the more powerful, therefor producing better bass.
A driver unit is basically a mini speaker that makes sound in the device, the unit size determines the sound produced by the device.
Sony WF 1000XM4 driver unit is 6mm in diameter,
which means that they have a smaller driver unit than that of Sennheiser Momentum True Wireless 3 by 1mm
, many people have a misconception 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 mean that they deliver better quality sound.
Lowest Frequency
Sony WF 1000XM4
20Hz
Sennheiser Momentum True Wireless 3 5Hz
Sennheiser Momentum True Wireless 3's lowest frequency is at 5Hz, low-frequency response measures if and how well a particular audio device generates low recognizable frequencies and if it alters the signal on its way through.
Sony WF 1000XM4's lowest frequency is at 20Hz, this means that
Sennheiser Momentum True Wireless 3 produce a juicier bass than the Sony WF 1000XM4
Highest Frequency
Sony WF 1000XM4
40,000Hz
Sennheiser Momentum True Wireless 3 21,000Hz
The Sennheiser Momentum True Wireless 3's highest frequency is at 21,000Hz, high-frequency response shows how well an audio device makes high audible frequencies and if it makes any changes to the signal on its way through.
Sony WF 1000XM4's highest frequency is at 40,000Hz, this implies that
Sony WF 1000XM4 can produce a clearer and crispier treble than the Sennheiser Momentum True Wireless 3
Sound Pressure Level
Sony WF 1000XM4
105dB/mW
Sennheiser Momentum True Wireless 3 107dB/mW
SPL, is the level of pressure of sound, in decibels, dB, Sennheiser Momentum True Wireless 3's measurement is 107dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
Sony WF 1000XM4's sound pressure level measurement is 105dB/mW. How loud a device is can be considered differently by separate persons, so we need to have a way of getting an objective measurement of sound level expressed in numerical terms.
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