Has Active Noise Cancellation (Noise Control)
Xiaomi Redmi Buds 4 Pro
✓
Sony LinkBuds S ✓
ANC uses advanced technology to reduce ambient sounds. ANC works when, it detects and analyzes 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 adding -1 (inverted noise) giving 0 which results in a reduced level of noise.
Xiaomi Redmi Buds 4 Pro have ANC allowing you to listen at lower volume levels, good for your ears as you don't need to crank up the device volume to overcome background noise.
The Sony LinkBuds S too have ANC making both devices ideal for flights and rush hour commutes. The Xiaomi Redmi Buds 4 Pro and Sony LinkBuds S work with different noise cancellation modes, pick the mode that you prefer for travel or that enhances your relaxation time.
Has Passive Noise Reduction
Xiaomi Redmi Buds 4 Pro
✓
Sony LinkBuds S ✓
Xiaomi Redmi Buds 4 Pro stay tightly in place, this creates an acoustic covering that tones down your environment noise and also prevents the earbuds sound from leaking out .
Both of these devices have passive noise reduction which implies that they tone down ambient noise without using ANC to cancel it out.
Driver Unit Size
Xiaomi Redmi Buds 4 Pro
11mm
Sony LinkBuds S 5mm
Xiaomi Redmi Buds 4 Pro have a unit size of 11mm in diameter, the bigger the unit the more powerful, therefor producing better bass.
The driver unit is basically a mini speaker that makes sound in the earbuds, its size dictates the sound produced by the device.
Sony LinkBuds S driver unit is 5mm in diameter,
which means that they have a smaller driver unit than that of Xiaomi Redmi Buds 4 Pro by 6mm
, many people have a misconception that driver units of a bigger size automatically produce better sound quality.
However, large drivers find it difficult to produce high frequencies so yeah, larger drivers are capable of generating louder sound, but this does not mean that they deliver better quality sound.
Lowest Frequency
Xiaomi Redmi Buds 4 Pro
20Hz
Sony LinkBuds S 20Hz
The Xiaomi Redmi Buds 4 Pro's lowest frequency is at 20Hz, low-frequency response measures if and how well an audio device produces low frequencies that can be heard, and if it makes any changes to the signal while at it.
Sony LinkBuds S's lowest frequency is at 20Hz, this implies that
both devices can make sound with equal bass
Highest Frequency
Xiaomi Redmi Buds 4 Pro
40000Hz
Sony LinkBuds S 40000Hz
The Xiaomi Redmi Buds 4 Pro's highest frequency is at 40000Hz, high-frequency response indicates how well an audio component makes high human frequencies and if it makes any changes to the signal while at it.
Sony LinkBuds S's highest frequency is at 40000Hz, this implies that
both devices can generate equal treble
Has A Neodymium Magnet
Xiaomi Redmi Buds 4 Pro
✗
Sony LinkBuds S ✓
Sony LinkBuds S have neodymium magnets, when used in audio devices produce a higher sensitivity and substantial sound output while using less power. They can help generate music at quite a high sound pressure level, with the use of high magnetic flux.
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