Home Wireless Earbuds Devialet Gemini Vs. Jbl Reflect Aero Tws

A Review By Comparison of the Devialet Gemini Vs. Jbl Reflect Aero Tws

Last updated on Apr 19, 2023   7 min read
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Devialet Gemini

Devialet Gemini

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Reasons why you might like the Devialet Gemini

Overall Score 6.8 Represents average audio ecosystem compatibility score.

  • Ingress Protection (Ip) Rating of IPX4
  • Has Active Noise Cancellation (Noise Control)
  • Battery Life of 6 hours
  • Has Usb Type-C
  • Number Of Microphones of 2 only
  • Has Ambient Sound Mode
VS
JBL Reflect Aero TWS

JBL Reflect Aero TWS

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Reasons why you might like the JBL Reflect Aero TWS

Overall Score 6.0 Represents average audio ecosystem compatibility score.

  • Ingress Protection (Ip) Rating of IP68
  • Has Active Noise Cancellation (Noise Control)
  • Battery Life of 8 hours
  • Has Usb Type-C
  • Number Of Microphones of 6 only
  • Has Ambient Sound Mode

A summary of the review by feature comparison

Category Features Devialet Gemini JBL Reflect Aero TWS
DESIGN ingress protection (ip) rating IPX4 IP68
weight 8g 13g
has no wires or cables
wingtips included
sweat resistance
is dust proof and water-resistant
has stereo speakers
SOUND QUALITY has active noise cancellation (noise control)
has passive noise reduction
driver unit size 10mm 6.8mm
lowest frequency 5Hz 20Hz
highest frequency 20000Hz 20000Hz
sound pressure level 94dB/mW 99dB/mW
POWER battery life 6hours 8hours
battery life of charging case 18hours 16hours
charge time 1.5hours 1.5hours
battery power 55mAh
has wireless charging
has a battery level indicator
CONNECTIVITY has usb type-c
bluetooth version v5 v5.2
maximum bluetooth range 10meters 10meters
has aac
has aptx adaptive
MICROPHONE number of microphones 2only 6only
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
has voice prompts
travel bag is included
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A breakdown of the review per specifications

Design

Ingress Protection (Ip) Rating

Devialet Gemini IPX4
JBL Reflect Aero TWS IP68

Ingress protection ratings refer to the rating of protection offered by an enclosure, against dust and liquids. In the format of IPXX, 'X' represents a number The first value of the IP rating refers to protection against solids say dust, followed by the one that refers to resistance against liquids (water).

Having a value of IPX4, the Devialet Gemini's rating for solids indicates that no data available to specify a protection rating, and of liquids 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, JBL Reflect Aero TWS have a rating of IP68 meaning that they are completely dust proof and that of liquids is that, JBL Reflect Aero TWS has a higher liquid rating than Devialet Gemini

Weight

Devialet Gemini 8g
JBL Reflect Aero TWS 13g

Devialet Gemini have a weight of 8g . We prefer a lower weight best because lighter devices are easier to move with.

JBL Reflect Aero TWS, at 13g weigh more than the Devialet Gemini by of 5g

Has No Wires Or Cables

Devialet Gemini
JBL Reflect Aero TWS

True wireless devices have no wires connecting any part of the device together, Devialet Gemini are true wireless for this matter since they have no wires. This is a major distinction since wireless earbuds have wires linking the 2 earbuds together.

JBL Reflect Aero TWS also is true wireless because it doesn't have wires linking the two earbuds together.

Wingtips Included

Devialet Gemini
JBL Reflect Aero TWS

The JBL Reflect Aero TWS come with wingtips, these are reserved for workout earbuds and are usually an optional add-on to the separate silicone ear tip for a more secure fit.

Sweat Resistance

Devialet Gemini
JBL Reflect Aero TWS

Devialet Gemini have sweat resistance

JBL Reflect Aero TWS's resistance to sweat makes both devices ideal for use during long-distance running, marathons, training in workout bodysuits, etc

Is Dust Proof And Water-Resistant

Devialet Gemini
JBL Reflect Aero TWS

The JBL Reflect Aero TWS are both dustproof and water-resistant.

Has Stereo Speakers

Devialet Gemini
JBL Reflect Aero TWS

Devialet Gemini have stereo speakers, devices with stereo speakers deliver sound from separate channels on both left and right sides, this creates a richer sound and a better listening experience.

Both JBL Reflect Aero TWS and Devialet Gemini have stereo speakers

Devialet Gemini
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Sound Quality

Has Active Noise Cancellation (Noise Control)

Devialet Gemini
JBL Reflect Aero TWS

Active noise cancellation uses advanced technology to actively cancel noise. How it works, it listens to the sound pattern outside and inside the earbud and after generates a mirror signal to cancel it out. Simply put, it's like having +1 (sound from your surrounding) and adding -1 (inverted noise) giving zero therefore "diluting" the noise.

The Devialet Gemini have ANC allowing you to listen at lower volume levels, good for your ears since you don't need to crank up the device volume to overcome background sounds.

JBL Reflect Aero TWS too have Active Noise Cancellation which makes either of the devices ideal for flights and rush hour travels. Each work with different noise cancellation modes, pick the mode that suits your travel or that enhances your relaxation time.

Has Passive Noise Reduction

Devialet Gemini
JBL Reflect Aero TWS

Devialet Gemini stay well in place, creating an acoustic covering that reduces your environment sounds and also prevents the device sound from leaking out at the same.

Both JBL Reflect Aero TWS, and Devialet Gemini have passive noise reduction which means that they limit ambient noise instead of actively using ANC to cancel it out.

Driver Unit Size

Devialet Gemini 10mm
JBL Reflect Aero TWS 6.8mm

The 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, its size dictates the sound made by the device.

JBL Reflect Aero TWS driver unit is 6.8mm in diameter, which means that they have a smaller driver unit than that of Devialet Gemini by 3.2mm , a common assumption that driver units of a bigger size automatically produce better sound quality.

However, large drivers usually have difficulty producing high frequencies so it's true that, larger drivers are capable of generating louder sound, but this does not mean that they deliver better quality sound.

Lowest Frequency

Devialet Gemini 5Hz
JBL Reflect Aero TWS 20Hz

The Devialet Gemini's lowest frequency is at 5Hz, low-frequency response inidcates how well an audio device generates low recognizable frequencies and if it alters the signal while at it.

JBL Reflect Aero TWS's lowest frequency is at 20Hz, this means that Devialet Gemini produce a juicier bass than the JBL Reflect Aero TWS

Highest Frequency

Devialet Gemini 20000Hz
JBL Reflect Aero TWS 20000Hz

The Devialet Gemini's highest frequency is at 20000Hz, high-frequency response tells how well a particular audio device makes high audible frequencies and if it changes to the signal on its way through.

JBL Reflect Aero TWS's highest frequency is at 20000Hz, this implies that both devices can generate equal treble

Sound Pressure Level

Devialet Gemini 94dB/mW
JBL Reflect Aero TWS 99dB/mW

SPL, is the pressure level 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.

JBL Reflect Aero TWS's sound pressure level measurement is 99dB/mW. How loud something is can be considered differently by separate people, so we need to have a way of getting an objective measurement of sound level expressed in numerical terms.

Power

Battery Life

Devialet Gemini 6hours
JBL Reflect Aero TWS 8hours

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

JBL Reflect Aero TWS's battery life is more than that of Devialet Gemini by 2 hours . Each time you recharge your device, they get a little less playing time. The effect is not noticeable at first, but over time, your wireless earbuds will have shorter listening time.

Battery Life Of Charging Case

Devialet Gemini 18hours
JBL Reflect Aero TWS 16hours

This is given by the manufacturer, and Devialet Gemini's case has a charge of 18 hours. A charging case with more battery hours enables you to recharge your earbuds on the go many times before having to recharge the case itself.

JBL Reflect Aero TWS's charging case has a battery life of 16 hours, less than that of Devialet Gemini by 2 hours

Charge Time

Devialet Gemini 1.5hours
JBL Reflect Aero TWS 1.5hours

It requires 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.

JBL Reflect Aero TWS takes 1.5 hours to fully charge the battery, equal to that of the Devialet Gemini

Battery Power

Devialet Gemini 55mAh
JBL Reflect Aero TWS

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

Has Wireless Charging

Devialet Gemini
JBL Reflect Aero TWS

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
JBL Reflect Aero TWS

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

JBL Reflect Aero TWS too have a battery level indicator, these allow you to determine the charging state of your device, if charged fully, or the battery is running low.

Devialet Gemini
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Connectivity

Has Usb Type-C

Devialet Gemini
JBL Reflect Aero TWS

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

JBL Reflect Aero TWS too support USB TYPE-C. This USB-C plug comes along with most current laptops, phones, and tablets.

Bluetooth Version

Devialet Gemini v5
JBL Reflect Aero TWS v5.2

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

JBL Reflect Aero TWS has a Bluetooth version of 5.2, newer than that of Devialet Gemini . Newer versions provide faster data transfers.

Maximum Bluetooth Range

Devialet Gemini 10meters
JBL Reflect Aero TWS 10meters

Devialet Gemini have a 10meters distance to connect via Bluetooth.

JBL Reflect Aero TWS have a maximum range of 10meters, equal to that of the Devialet Gemini

Has Aac

Devialet Gemini
JBL Reflect Aero TWS

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

Being the highest quality codec that any Bluetooth-supporting Apple product supports, the Devialet Gemini will work fine with your iPad. If you intend 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.

Has Aptx Adaptive

Devialet Gemini
JBL Reflect Aero TWS

The 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).

Microphone

Number Of Microphones

Devialet Gemini 2only
JBL Reflect Aero TWS 6only

Devialet Gemini have 2 microphones.

JBL Reflect Aero TWS microphones are 6, more than that of Devialet Gemini by 4 . More microphones record better sound quality and enable the device to filter out background sounds.

Has A Noise-Canceling Microphone

Devialet Gemini
JBL Reflect Aero TWS

Devialet Gemini have a noise-canceling microphone, these microphones are designed to filter out background sounds from the earbuds' sound.

The JBL Reflect Aero TWS too use a noise-canceling type of microphone. Especially useful in noisy areas.

Devialet Gemini
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Extras

Has Ambient Sound Mode

Devialet Gemini
JBL Reflect Aero TWS

Devialet Gemini support ambient sound mode, which uses microphones to pass through ambient noises so that they can still be heard even when wearing them

The JBL Reflect Aero TWS support ambient sound mode as well, it’s useful when you want to listen to music while being aware of your surrounding, for example when you’re having a jog but still want to be able to hear traffic.

Has In/On-Ear Detection

Devialet Gemini
JBL Reflect Aero TWS

Devialet Gemini support in/on-ear detection, the sensors in the earbuds can detect when they are removed from your ears .

Has Find Earbuds Feature

Devialet Gemini
JBL Reflect Aero TWS

If lost in a room, or can't easily find them in your bag, Devialet Gemini have a find earbuds feature.

Supports Fast Charging

Devialet Gemini
JBL Reflect Aero TWS

Devialet Gemini support fast charging. Usually, technologies like MediaTek’s Pump Express, are used to reduce the amount of time it takes to fully charge a device.

JBL Reflect Aero TWS too support fast charging. This kind is similar to regular charging, only that the battery is filling up much faster. For example, with Quick Charge 3.0, the battery can be charged to 50% in thirty minutes.

Has A Mute Function

Devialet Gemini
JBL Reflect Aero TWS

The JBL Reflect Aero TWS have a mute function, they have the option to mute/unmute a conversation directly from the device.

Control Panel Placed On A Device

Devialet Gemini
JBL Reflect Aero TWS

With the Devialet Gemini, so you can access the volume control, pause, play, mute, etc whichever functions are supported on the device.

JBL Reflect Aero TWS also have a control panel on them.

Warranty Period

Devialet Gemini 2Years
JBL Reflect Aero TWS

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 that has followed instruction manuals.

Has Voice Prompts

Devialet Gemini
JBL Reflect Aero TWS

Devialet Gemini support voice prompts. With voice prompts, you receive information through audio messages, like if there is an issue with the connection.

The JBL Reflect Aero TWS too support voice prompts .i.e the earbuds will notify you when the battery is low, and you need to recharge them.

Travel Bag Is Included

Devialet Gemini
JBL Reflect Aero TWS

The Devialet Gemini come with their own special case. Carrying earbuds without a case, or placing them in your pockets without a cover can easily damage them.

JBL Reflect Aero TWS also have a travel bag included, which is useful for safe transportation.

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