Description
The Devialet Gemini II is the most unusual product in this part of the catalog: a true wireless set from a French audio company better known for amplifiers and sculptural speakers than for earbuds. It brings adaptive noise cancellation, a titanium coated 10 mm driver, four ear tip sizes, dual device pairing and an app with customizable controls. It also runs an older Bluetooth version than most of its rivals, names no codec, publishes no ingress rating, and carries the lowest customer average of any premium set here.
Who this is for
Devialet positions this squarely at daily music and commuting rather than at sport. Aluminum and plastic construction, a rounded sealing tip and four ear tip sizes point at long wear in offices, on trains and on planes. Four tip sizes is one more than the industry standard three and a genuine advantage, because tip fit is the specification with the largest practical effect on both the seal and the perceived bass. Anyone stranded between sizes on a three tip kit has a better chance here.
Because the tips seal and the cancellation removes more of the room on top of that, this is the wrong tool for cycling or road running. No transparency mode is described anywhere in this listing, which is a notable omission at this level, so a wearer cannot let ambient sound back in without removing a bud. Anyone who needs to hear traffic should be looking at the designs in the open ear headphone category.
One line in the Devialet copy needs correcting rather than repeating. The second bullet promises to silence the world and block out distractions. No earbud makes an environment silent. Active cancellation works well against constant low frequency sound such as engine and cabin drone and poorly against speech and sudden noise, and Devialet publishes no decibel reduction figure and names no test standard, so the strength of the system cannot be compared numerically against rivals such as those covered in our Bose QuietComfort Ultra Earbuds review. The right use of strong cancellation is to lower the listening volume, since the noise floor is already lower, not to justify raising it.
Connection: Bluetooth 5.2, dual pairing, no codec
Devialet publishes Bluetooth 5.2 with a 10 meter range. That is a generation behind the 5.3 and 5.4 radios on most of the products sitting next to it, including several costing a fraction as much. In practice 5.2 works well for stereo audio and calls; what it lacks relative to 5.3 is some connection maintenance improvement in crowded radio environments and the newest LE Audio groundwork. It is not a reason to rule the product out, but it is worth knowing on a premium purchase.
The fifth bullet documents pairing with up to two devices simultaneously, which is multipoint by another name and is a real feature that most listings in this catalog never mention. Google Fast Pair is also supported, and touch controls can be remapped in the app.
The audio fidelity claim
The first bullet promises pristine audio fidelity from advanced acoustic engineering. No codec is named anywhere in this listing: not AAC, not aptX, not aptX Adaptive, not LDAC. That is a significant omission on a premium product, because on Bluetooth the codec is the ceiling. Without a named codec, SBC is the only one a buyer can assume, and no high resolution description would be supportable on that basis. Any codec dependent claim also requires the source phone to support the same codec independently, since both ends negotiate together, and most iPhones support neither aptX nor LDAC. Confirm the codec list with Devialet before ordering. Buyers who want codec support stated openly at this level should compare the Sennheiser Momentum True Wireless 4 review or the Nothing Ear review, both of which publish their codecs.
Battery: a total with no per charge figure
The structured Battery Life field records 22 hours. That is a combined total including case recharges rather than a bud runtime, which is how every comparable listing in this catalog uses such a number, and no per charge figure appears anywhere in the listing or the feature bullets.
That is the gap to close before buying. What governs a flight, a commute or a working day is how long the buds last off a full charge, not how long the whole package lasts away from a wall outlet. Twenty two hours in total is also modest for a premium set; several products in this catalog at a fraction of the price quote 40 to 90 hour totals, though those figures come with no cancellation to run. Any published total should be read as assuming cancellation is off, since adaptive cancellation is a continuous processing load. Ask Devialet for the per charge runtime with cancellation on and off, and treat both as best case measurements at moderate volume. No case capacity and no charging time are published.
Fit, driver and the missing IP rating
Four ear tip sizes ship in the box, which is above average and the most practically useful specification in the listing. A leaking seal drains low frequency energy and leaves any sealing earbud sounding thin, and it also forces the cancellation to work harder, so tip fit matters more on a cancelling set than on a passive one.
The driver is 10 mm with a titanium coating, which Devialet credits for the bass depth. Titanium coating stiffens a diaphragm and reduces breakup at high excursion, which is a real engineering choice, though coating alone predicts little about tuning. Impedance is 32 Ohm and the frequency range is the standard 20 Hz to 20,000 Hz span, which conveys nothing about voicing. Controls are touch based and remappable in the app.
There is no IP rating anywhere in this listing. The structured Water Resistance Level field says only Water Resistant and the fourth bullet says moisture resistant, both of which are descriptions rather than ratings. We will not state a code the listing does not give. Treat these as tolerant of light sweat and humidity at most and confirm the actual rating with Devialet if you intend to exercise in them. No IP rating covers seawater or high pressure water in any case, and ratings degrade as seals age.
Data notes and the rating
Item Weight is recorded as 198.4 grams and again as 7 ounces, which agree with each other and describe the shipped package rather than the buds. Color is Matte Black while the Carrying Case Color field reads Iconic White, so confirm which finish arrives. Special Features contains the word Lightweight and Other Display Features contains the word Wireless. The manufacturer is Devialet Inc. and the country of origin is China, which is unremarkable for the category but worth knowing on a product sold on French design credentials. Devialet states a 4.0 out of 5 average across 108 ratings, which is the lowest average among the premium sets in this catalog and a small sample; we attribute it rather than verify it, but on a premium purchase it deserves attention rather than dismissal. More options at this level sit in the earbud headphone listings.
Who should buy it and who should not
Buy the Devialet Gemini II if adaptive cancellation, four tip sizes, dual device pairing and app customization are what you want, and if the industrial design and the brand matter to you. Skip it if you need a named codec, a published ingress rating, a per charge battery figure, a transparency mode or the newest Bluetooth radio, because none of those appears in this listing. Before ordering, ask Devialet three questions: which codecs are supported, what the per charge runtime is with cancellation on, and what the IP rating is.
