A breakdown of the review per specifications

Ingress Protection (Ip) Rating

Devialet Gemini IPX4

JEET W1S IPX5

IP ratings is the rating of protection given by an enclosure, against solids and water. In the format of IPXX, 'X' represents a number The first value means protection against solids say dust, while the second refers to protection against liquids (sweat).

Having a value of IPX4, the Devialet Gemini's rating for solids indicates that no data available to specify a protection rating, and the second value of 4 means that they can withstand low pressure spray similar to that of a shower head when tilted at 180° for 10 minutes.

In comparison to the Devialet Gemini, JEET W1S have a rating of IPX5 meaning that we are not yet certain of their rating with solids (dust) and that of liquids is that, Devialet Gemini has a lower liquid rating than JEET W1S

Weight

Devialet Gemini 8g

JEET W1S 18g

Devialet Gemini have a weight of 8g . We take in account a lower weight better because lighter devices are more comfortable to carry.

JEET W1S, at 18g weigh more than the Devialet Gemini by of 10g

Has No Wires Or Cables

Devialet Gemini ✓

JEET W1S ✗

True wireless devices have no cables connecting any part of the device together, Devialet Gemini are true wireless for this matter since they have no wires. This is a major difference since wireless earbuds have wires connecting the pair of earbuds together.

Wingtips Included

Devialet Gemini ✗

JEET W1S ✓

JEET W1S have wingtips, these are commonly used for workout earbuds and are usually an optional add-on to the separate silicone ear tip for a better fit.

Sweat Resistance

Devialet Gemini ✓

JEET W1S ✓

Devialet Gemini have sweat resistance

JEET W1S's resistance to sweat makes both devices fit for use while doing sports such as long-distance running, marathons, cardio sweat workouts , etc

Has Stereo Speakers

Devialet Gemini ✓

JEET W1S ✓

Devialet Gemini have stereo speakers, what this means is that Devialet Gemini's speakers deliver sound from independent channels on both left and right sides, this creates a richer sound and a better listening experience.

Both JEET W1S and Devialet Gemini have stereo speakers

Devialet Gemini
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Has Active Noise Cancellation (Noise Control)

Devialet Gemini ✓

JEET W1S ✗

ANC utilises more advanced technology to reduce ambient sounds. How it works, it studies the sound pattern of incoming noise and inverts the soundwaves to cancel it out. In simple terms, it's like having +1 (noise) and producing -1 (counter sound by the device) giving zero therefore "diluting" the noise.

Devialet Gemini have Active Noise Cancellation allowing you to listen at lower levels of volume, causing less ear fatigue since you don't need to crank up the earbuds volume to overcome background sounds.

Has Passive Noise Reduction

Devialet Gemini ✓

JEET W1S ✓

The Devialet Gemini sit well in place, this creates a sound covering that reduces background sounds and also prevents the device sound from leaking out .

Both of these devices have passive noise reduction which means that both tone down ambient noise instead of actively using technology to cancel it out.

Driver Unit Size

Devialet Gemini 10mm

JEET W1S 11mm

The Devialet Gemini driver unit is 10mm in diameter, bigger drivers are more powerful, therefor producing better bass. The driver unit is the component that makes sound in the earbuds, the unit size dictates the loudness of the earbuds.

JEET W1S driver unit is 11mm in diameter, making them have a larger driver unit than that of Devialet Gemini by 1mm , 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 yeah, larger drivers are capable of generating louder sound, but this does not indicate that they deliver better quality sound.

Lowest Frequency

Devialet Gemini 5Hz

JEET W1S 20Hz

Devialet Gemini's lowest frequency is at 5Hz, low-frequency response inidcates how well an audio component produces low recognizable frequencies and if it makes any changes to the signal while at it.

JEET W1S's lowest frequency is at 20Hz, this implies that Devialet Gemini produce a juicier bass than the JEET W1S

Highest Frequency

Devialet Gemini 20000Hz

JEET W1S 20000Hz

The Devialet Gemini's highest frequency is at 20000Hz, high-frequency response shows how well an audio component produces high audible frequencies and if it makes any adjustments to the signal while at it.

JEET W1S's highest frequency is at 20000Hz, this means that both devices can generate equal treble

Sound Pressure Level

Devialet Gemini 94dB/mW

JEET W1S 93dB/mW

The sound pressure level, is the pressure level of sound, measured 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.

JEET W1S's sound pressure level measurement is 93dB/mW. The sound pressure level, something is can be taken differently by separate people, so we need to have the means to get a standard measurement of sound level expressed in numerical terms.

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Battery Life

Devialet Gemini 6hours

JEET W1S 11hours

Devialet Gemini's battery life is 6 hours, these last longer than 5 hours of listening which is considered average for a single charge. A device's battery life is commonly given by the manufacturer, and with more battery hours, you get to use it for longer and have to charge the device less often.

JEET W1S's battery life is more than that of Devialet Gemini by 5 hours . Every time you recharge your device, they get a little less listening time. The effect is barely noticeable at first, but over time, your wireless earbuds will no longer play for long like they used to.

Battery Life Of Charging Case

Devialet Gemini 18hours

JEET W1S ✗

The battery life of the charging case is given by the vendor, and Devialet Gemini's case is said to have a charge of 18 hours. A charging case with a longer battery life allows you to recharge your earbuds on the go multiple times before having to recharge the case itself.

Charge Time

Devialet Gemini 1.5hours

JEET W1S ✗

It takes 1.5 hours to fully charge the Devialet Gemini's battery. It is highly adivsable to fully charge the battery before using the earbuds for the first time.

Battery Power

Devialet Gemini 55mAh

JEET W1S ✗

Devialet Gemini's battery power is 55mAh, battery capacity, shows the amount of electrical energy that a battery can keep.

Has Wireless Charging

Devialet Gemini ✓

JEET W1S ✗

Devialet Gemini, the device supports wireless charging. To charge the device, you just put down on a compatible charging pad.

Has A Battery Level Indicator

Devialet Gemini ✓

JEET W1S ✓

Devialet Gemini have a battery level indicator, an indicator alerts you when the earbuds has a low battery. The battery indicator lights display the charging state of your earbuds and case.

JEET W1S too have a battery level indicator, charging indicators allow you determine the charging state of your device, if charged fully, or having a low battery.

Devialet Gemini
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Has Usb Type-C

Devialet Gemini ✓

JEET W1S ✗

The Devialet Gemini use USB TYPE-C, a standard connector for transmitting both data and power in a single cable.

Bluetooth Version

Devialet Gemini v5

JEET W1S v4.1

Devialet Gemini have Bluetooth version of 5, Bluetooth is a wireless technology standard that allows data transfers between devices placed in range, using short-wavelength, ultra-high frequency radio waves.

JEET W1S has a Bluetooth version of 4.1, older than that of Devialet Gemini . Newer versions provide faster data transfers.

Maximum Bluetooth Range

Devialet Gemini 10meters

JEET W1S 10meters

Devialet Gemini have a 10meters distance connecting via Bluetooth.

JEET W1S have a maximum range of 10meters, equal to that of the Devialet Gemini

Has Aac

Devialet Gemini ✓

JEET W1S ✓

Devialet Gemini support AAC, a codec used for Bluetooth audio. It supports 24-bit audio at 250kbps. Because it uses psychoacoustic modeling, it can provide better results than other codecs at the same bit rate.

Since its the highest quality codec that any Bluetooth-supporting Apple product supports, the Devialet Gemini will work well with your iPad. If you are planning on using these with Android you need to pay even closer attention to codec support for if they only have AAC they won't provide the best audio quality possible, ensure that they also support aptX HD, LDAC, or LHDC as well.

The JEET W1S support AAC as well. Designed to be the successor of the MP3 format, AAC generally achieves higher sound quality than MP3 encoders at the same bit rate.

Has Ldac

Devialet Gemini ✗

JEET W1S ✓

The JEET W1S support LDAC, a codec developed by Sony which allows streaming high-resolution audio over Bluetooth connections at up to 990 kbps at 32 bit/96 kHz. It can reach a high bitrate of 990kbps, which provides high-resolution audio.

Has Aptx Adaptive

Devialet Gemini ✓

JEET W1S ✓

Devialet Gemini support APTX Adaptive, an audio codec for Bluetooth devices that are developed by Qualcomm. It has a variable bit rate (between 279kbps and 420kbps).

JEET W1S support APTX Adaptive as well which means both can adjust the bit rate for different scenarios, such as listening to HD audio from other devices.

Has Aptx Low Latency

Devialet Gemini ✗

JEET W1S ✓

JEET W1S support APTX Low Latency, a codec developed by Qualcomm. It uses Bluetooth 5.0 technology to provide low latency audio (around 40ms), which is useful when you want to avoid audio lag for example when playing games.

Has Aptx Hd

Devialet Gemini ✗

JEET W1S ✓

The JEET W1S support APTX HD, an audio codec for Bluetooth devices that are developed by Qualcomm. It supports high-quality 24-bit audio (at a bit rate of 576kbps).

Audio Latency

Devialet Gemini ✗

JEET W1S 88ms

Latency refers to the time it takes for the audio signal to be transmitted to your earbuds. JEET W1S have a latency of 88ms, a lower latency reduces audio lag and is particularly important when playing games or watching videos.

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Number Of Microphones

Devialet Gemini 2only

JEET W1S 1only

The Devialet Gemini have 2 microphones.

JEET W1S microphones are 1, less than that of Devialet Gemini by 1 . More microphones record better sound quality and help the earbuds to filter out background sounds.

Has A Noise-Canceling Microphone

Devialet Gemini ✓

JEET W1S ✗

The Devialet Gemini have a noise-canceling type of microphone, these microphones are made to filter out background sounds from the desired sound.

Devialet Gemini
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Has Ambient Sound Mode

Devialet Gemini ✓

JEET W1S ✓

Devialet Gemini support ambient sound mode, which uses microphones to channel ambient noises to still be heard even while wearing the earbuds

The JEET W1S support ambient sound mode as well, helpful when you want to listen to music but also be aware of your surrounding, for example when you’re having a jog but still want to hear traffic.

Has In/On-Ear Detection

Devialet Gemini ✓

JEET W1S ✓

The Devialet Gemini support in/on-ear detection, the sensors in the device can detect when they are removed from your ears so that the music is paused.

The JEET W1S support in/on-ear detection, automatically pauses your music, or audiobook when you remove earbuds from your ears saving battery life.

Has Find Earbuds Feature

Devialet Gemini ✓

JEET W1S ✓

When lost in a room, or can't easily find them in your bag, the Devialet Gemini support the find earbuds feature.

JEET W1S also have the find earbuds feature. You can use the device app on your phone to play an alarm from your earbuds to help you find them.

Supports Fast Charging

Devialet Gemini ✓

JEET W1S ✓

The Devialet Gemini support fast charging. Commonly, technologies like MediaTek’s Pump Express, are used to lower the time it takes to charge the earbuds.

Also the JEET W1S support fast charging. This kind is similar to regular charging, only that the battery fills up much faster. Say, with Quick Charge 3.0, the battery is charged to 50% in just thirty minutes.

Has A Mute Function

Devialet Gemini ✗

JEET W1S ✓

JEET W1S have a mute function, they have the option to mute/unmute a conversation directly from the earbuds.

Control Panel Placed On A Device

Devialet Gemini ✓

JEET W1S ✓

The Devialet Gemini, so you can access the volume control, pause, play, mute, etc whichever features are supported on the earbuds.

The JEET W1S too have a control panel on them.

Warranty Period

Devialet Gemini 2Years

JEET W1S 1Years

The Devialet Gemini have a warranty period of 2 Years, the period of time that warrant free repair and adjustment services in case of a malfunction occurring under normal use following instruction manuals.

When covered under the manufacturer’s warranty it is possible to get a replacement a malfunction occurs. JEET W1S have a warranty period of 1Years, less than that of Devialet Gemini by 1 Years .

Has Voice Prompts

Devialet Gemini ✓

JEET W1S ✓

The Devialet Gemini have voice prompts. Automatically receive information through audio messages, like if there is a problem with the connection.

The JEET W1S also have voice prompts meaning the earbuds will notify you if the battery is low, and it's time to recharge them.

Travel Bag Is Included

Devialet Gemini ✓

JEET W1S ✓

Devialet Gemini come with a special case. Carrying earphones openly, or putting them inside your pockets without a casing may easily put them at risk of getting damaged.

JEET W1S too have a case included, which is useful for safe transportation.

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Category	Features	Devialet Gemini	JEET W1S
DESIGN	ingress protection (ip) rating	IPX4	IPX5
	weight	8g	18g
	has no wires or cables	✓	✗
	wingtips included	✗	✓
	sweat resistance	✓	✓
	has stereo speakers	✓	✓
SOUND QUALITY	has active noise cancellation (noise control)	✓	✗
	has passive noise reduction	✓	✓
	driver unit size	10mm	11mm
	lowest frequency	5Hz	20Hz
	highest frequency	20000Hz	20000Hz
	sound pressure level	94dB/mW	93dB/mW
POWER	battery life	6hours	11hours
	battery life of charging case	18hours	✗
	charge time	1.5hours	✗
	battery power	55mAh	✗
	has wireless charging	✓	✗
	has a battery level indicator	✓	✓
CONNECTIVITY	has usb type-c	✓	✗
	bluetooth version	v5	v4.1
	maximum bluetooth range	10meters	10meters
	has aac	✓	✓
	has ldac	✗	✓
	has aptx adaptive	✓	✓
	has aptx low latency	✗	✓
	has aptx hd	✗	✓
	audio latency	✗	88ms
MICROPHONE	number of microphones	2only	1only
MICROPHONE	has a noise-canceling microphone	✓	✗
EXTRAS	has ambient sound mode	✓	✓
	has in/on-ear detection	✓	✓
	has find earbuds feature	✓	✓
	supports fast charging	✓	✓
	has a mute function	✗	✓
	control panel placed on a device	✓	✓
	warranty period	2Years	1Years
	has voice prompts	✓	✓
	travel bag is included	✓	✓
		See price on Amazon	See price on Amazon

A Review By Comparison of the Devialet Gemini Vs. Jeet W1S

Reasons why you might like the Devialet Gemini

Reasons why you might like the JEET W1S

A summary of the review by feature comparison

A breakdown of the review per specifications

Design

Ingress Protection (Ip) Rating

Weight

Has No Wires Or Cables

Wingtips Included

Sweat Resistance

Has Stereo Speakers

Sound Quality

Has Active Noise Cancellation (Noise Control)

Has Passive Noise Reduction

Driver Unit Size

Lowest Frequency

Highest Frequency

Sound Pressure Level

Power

Battery Life

Battery Life Of Charging Case

Charge Time

Battery Power

Has Wireless Charging

Has A Battery Level Indicator

Connectivity

Has Usb Type-C

Bluetooth Version

Maximum Bluetooth Range

Has Aac

Has Ldac

Has Aptx Adaptive

Has Aptx Low Latency

Has Aptx Hd

Audio Latency

Microphone

Number Of Microphones

Has A Noise-Canceling Microphone

Extras

Has Ambient Sound Mode

Has In/On-Ear Detection

Has Find Earbuds Feature

Supports Fast Charging

Has A Mute Function

Control Panel Placed On A Device

Warranty Period

Has Voice Prompts

Travel Bag Is Included

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