Has Active Noise Cancellation (Noise Control)
Xiaomi Redmi Buds 4 Pro
✓
Bose QuietComfort Earbuds II ✓
ANC utilises more advanced kind of tech to actively cancel noise. How it works, it listens to the sound pattern of incoming noise and then generates a mirror signal to counter it. In simple terms, it's like taking +1 (noise) and producing -1 (counter sound by the device) to make zero hence "diluting" the noise.
Xiaomi Redmi Buds 4 Pro have Active Noise Cancellation enabling you to listen at lower levels of volume, good for your ears as you don't need to crank up the earbuds volume to overcome background sounds.
Bose QuietComfort Earbuds II too have Active Noise Cancellation which makes either of the devices ideal for plane rides and rush hour commutes. Each work with different noise cancellation settings, pick the mode that suits your commute or that suites your chill time.
Has Passive Noise Reduction
Xiaomi Redmi Buds 4 Pro
✓
Bose QuietComfort Earbuds II ✓
Xiaomi Redmi Buds 4 Pro sit tightly in place, this creates an acoustic covering that tones down background sounds while preventing the device sound from leaking out .
Both Bose QuietComfort Earbuds II, and Xiaomi Redmi Buds 4 Pro have passive noise reduction which means that both reduce ambient noise instead of actively using ANC to cancel it out.
Driver Unit Size
Xiaomi Redmi Buds 4 Pro
11mm
Bose QuietComfort Earbuds II 9.3mm
The Xiaomi Redmi Buds 4 Pro driver unit is 11mm 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, the unit size determines the sound made by the device.
Bose QuietComfort Earbuds II driver unit is 9.3mm in diameter,
which means that they have a smaller driver unit than that of Xiaomi Redmi Buds 4 Pro by 1.7mm
, as many tend to believe that driver units of a bigger size automatically produce better sound quality.
However, large drivers find it difficult to produce high frequencies so yes, larger drivers are capable of generating louder sound, but this does not indicate that they produce better quality sound.
Lowest Frequency
Xiaomi Redmi Buds 4 Pro
20Hz
Bose QuietComfort Earbuds II 20Hz
The Xiaomi Redmi Buds 4 Pro's lowest frequency is at 20Hz, low-frequency response measures if and how well a particular audio component generates low recognizable frequencies and if it alters the signal while at it.
Bose QuietComfort Earbuds II's lowest frequency is at 20Hz, this means that
both devices can produce equal bass
Highest Frequency
Xiaomi Redmi Buds 4 Pro
40000Hz
Bose QuietComfort Earbuds II 20000Hz
The Xiaomi Redmi Buds 4 Pro's highest frequency is at 40000Hz, high-frequency response indicates how well a particular audio component makes high recognizable frequencies and if it makes any changes to the signal on its way through.
Bose QuietComfort Earbuds II's highest frequency is at 20000Hz, this implies that
Xiaomi Redmi Buds 4 Pro can generate a clearer and crispier treble than the Bose QuietComfort Earbuds II
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