Has Active Noise Cancellation (Noise Control)
Xiaomi Redmi Buds 4 Pro
✓
JBL Reflect Aero TWS ✓
Active noise cancellation utilises more advanced technology to reduce ambient sounds. ANC works when, it listens to the sound pattern outside and inside the earbud and then inverts the soundwaves to counter it. Simply put, it's like taking +1 (sound from your surrounding) then adding -1 (inverted noise) giving zero which results in a reduced level of noise.
Xiaomi Redmi Buds 4 Pro have ANC enabling you to listen at lower levels of volume, causing less ear fatigue since you don't need to crank up the earbuds volume to outcompete background sounds.
The JBL Reflect Aero TWS too have ANC which makes either of the devices ideal for flights and rush hour travels. The Xiaomi Redmi Buds 4 Pro and JBL Reflect Aero TWS work with different noise cancellation modes, pick the setting that you prefer for commute or that enhances your chill time.
Has Passive Noise Reduction
Xiaomi Redmi Buds 4 Pro
✓
JBL Reflect Aero TWS ✓
Xiaomi Redmi Buds 4 Pro sit tightly in place, this creates an acoustic seal that tones down background sounds while preventing the earbuds music from leaking out at the same.
Both of these devices have passive noise reduction this means that they reduce ambient noise without using technology to cancel it out.
Driver Unit Size
Xiaomi Redmi Buds 4 Pro
11mm
JBL Reflect Aero TWS 6.8mm
The Xiaomi Redmi Buds 4 Pro driver unit is 11mm in diameter, bigger drivers are 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.
JBL Reflect Aero TWS driver unit is 6.8mm in diameter,
which implies that they have a smaller driver unit than that of Xiaomi Redmi Buds 4 Pro by 4.2mm
, 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 imply that they deliver better quality sound.
Lowest Frequency
Xiaomi Redmi Buds 4 Pro
20hz
JBL Reflect Aero TWS 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 produces low frequencies that can be heard, and if it makes any changes to the signal on its way through.
JBL Reflect Aero TWS's lowest frequency is at 20Hz, this implies that
both devices make sound with equal bass
Highest Frequency
Xiaomi Redmi Buds 4 Pro
40,000hz
JBL Reflect Aero TWS 20,000hz
The Xiaomi Redmi Buds 4 Pro's highest frequency is at 40,000Hz, high-frequency response measures if and how well a particular audio device produces high audible frequencies and if it makes any adjustments to the signal while at it.
JBL Reflect Aero TWS's highest frequency is at 20,000Hz, this means that
Xiaomi Redmi Buds 4 Pro can generate a clearer and crispier treble than the JBL Reflect Aero TWS
Sound Pressure Level
Xiaomi Redmi Buds 4 Pro
✗
JBL Reflect Aero TWS 99db/mw
The sound pressure level, is the pressure level of sound, in decibels, dB, JBL Reflect Aero TWS's measurement is 99dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
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