Has Active Noise Cancellation (Noise Control)
Sony WF 1000XM4
✓
Devialet Gemini ✓
ANC utilises advanced technology to actively counter noise. ANC works when, it detects and analyzes the sound pattern outside and inside the earbud and generates a mirror signal to counter it. Simply put, it's like having +1 (sound from your surrounding) then producing -1 (counter sound by the device) to make 0 which results in a reduced level of noise.
The Devialet Gemini have ANC allowing you to listen at lower levels of volume, good for your ears since you don't have to crank up the earbuds volume to overcome background noise.
Sony WF 1000XM4 too have ANC which makes both earbuds ideal for flights and rush hour commutes. The Devialet Gemini and Sony WF 1000XM4 work with different noise cancellation settings, pick the setting that you prefer for commute or that suites your chill time.
Has Passive Noise Reduction
Sony WF 1000XM4
✓
Devialet Gemini ✓
The Devialet Gemini stay well in place, this creates an acoustic seal that reduces your environment sounds well as preventing the earbuds voice audio from leaking out .
Both Sony WF 1000XM4, and Devialet Gemini have passive noise reduction which implies that both limit ambient noise without using technology to cancel it out.
Driver Unit Size
Sony WF 1000XM4
6mm
Devialet Gemini 10mm
Devialet Gemini have a unit size of 10mm 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 device, the unit size determines the loudness of the device.
Sony WF 1000XM4 driver unit is 6mm in diameter,
which implies that they have a smaller driver unit than that of Devialet Gemini by 4mm
, as many tend to believe 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 produce better quality sound.
Lowest Frequency
Sony WF 1000XM4
20Hz
Devialet Gemini 5Hz
The Devialet Gemini's lowest frequency is at 5Hz, low-frequency response measures if and how well an audio device generates low frequencies that can be heard, and if it alters the signal on its way through.
Sony WF 1000XM4's lowest frequency is at 20Hz, this implies that
Devialet Gemini can produce a juicier bass than the Sony WF 1000XM4
Highest Frequency
Sony WF 1000XM4
40000Hz
Devialet Gemini 20000Hz
The Devialet Gemini's highest frequency is at 20000Hz, high-frequency response tells how well a particular audio component makes high recognizable frequencies and if it adjustments to the signal on its way through.
Sony WF 1000XM4's highest frequency is at 40000Hz, this means that
Sony WF 1000XM4 generate a clearer and crispier treble than the Devialet Gemini
Sound Pressure Level
Sony WF 1000XM4
105dB/mW
Devialet Gemini 94dB/mW
SPL, is the level of pressure of sound, in decibels, dB, Devialet Gemini's measurement is 94dB/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. The sound pressure level, something is can be perceived differently by different people, so we need to have a way of getting an objective measurement of sound level expressed in numerical terms.
Has A Neodymium Magnet
Sony WF 1000XM4
✓
Devialet Gemini ✗
The Sony WF 1000XM4 have neodymium magnets, if used in earbuds produce a higher sensitivity and substantial sound output while using less power. They can help produce music at quite a high sound pressure level, with the use of high magnetic flux.
A Review By Comparison Of The Audio Technica Ath Cks50Tw Vs. Devialet Gemini
A Review By Comparison Of The Jbl Wave Beam Vs. Devialet Gemini