Devialet Gemini II vs Poly Voyager Free 20 Comparison

Devialet Gemini II

Beamforming microphones and a bone-conduction voice sensor capture speech, with post-processing to remove background noise. The bone sensor helps the buds detect when you are speaking, which keeps your voice clear even in busy streets. Wind reduction also benefits calls, not just music. Dedicated business models with Teams certification are built for office calls.

Poly Voyager Free 20

Each bud has three noise-cancelling microphones, which Poly aims at your mouth to separate your voice from typing and background chatter. Poly processing suppresses typing and background chatter well. Without a dongle, laptop calls use standard Bluetooth, which narrows the audio when the mic is active. The Voyager Free 60+ includes a USB adapter for steadier PC calls and certification.

Devialet Gemini II

Devialet Adaptive Noise Cancellation adjusts to the shape of each ear. A patented Internal Delay Compensation algorithm improves cancellation at higher frequencies. Active Wind Reduction places each mic in anti-wind material and adjusts ANC and transparency automatically when wind is detected, which helps on outdoor walks and cycling commutes.

Poly Voyager Free 20

Adaptive ANC adjusts its strength to the surroundings, and a transparency mode lets you hear colleagues without removing a bud. Poly keeps the controls simple, with a long press switching between the two modes. Cancellation is good in offices and on commutes, reducing air conditioning hum and distant chatter. It is not as strong as premium consumer buds such as the AirPods Pro 3, but enough to help with focus work.

Devialet Gemini II

Devialet quotes up to 22 hours with the case. The buds themselves run for up to 5 hours per charge, which is modest for the price, and a full recharge takes about 1 hour 40 minutes. That is enough for a commute and a few meetings, but not a full day of calls without topping up.

Poly Voyager Free 20

Poly quotes up to 8 hours with ANC on and 12 hours off, with 28 and 42 hours total with the case. That is enough for a full workday of calls and music without a top-up. Few business earbuds last as long. The case charges by USB-C or on a Qi wireless pad, so a desk charger keeps it topped up without cables.

Devialet Gemini II

Each bud weighs about 6 g, with a 49 g case. Four tip sizes, XS to L, are included, and the buds are rated IPX4. The smaller second-generation shape sits more comfortably than the bulky original, with a soft-touch finish. A single customisable touch button at the rear reduces accidental presses.

Poly Voyager Free 20

The buds are light and shaped for long wear, with several tip sizes and an IP56 rating for dust and water. Many users can wear them through a full workday without discomfort. The shape stays stable when you talk, which matters on long calls. The case is compact and charges wirelessly on a Qi pad, which suits desk setups that already have a wireless charger.

Devialet Gemini II

Bluetooth 5.2 supports multipoint with automatic switching between two devices, with a stated range of up to 20 m. Codecs include aptX, AAC and SBC. Multipoint works smoothly between a phone and a laptop, switching when a call comes in. The Devialet Gemini app handles ANC modes, touch customisation and EQ.

Poly Voyager Free 20

Bluetooth 5.4 supports multipoint, keeping the buds connected to a phone and a laptop at the same time so you do not need to re-pair between devices. Switching between devices is automatic when a call arrives. Poly Lens app on mobile and desktop handles settings and updates. They are not certified for Teams or Zoom, and no USB dongle is included.

Devialet Gemini II

A custom 10 mm titanium-coated driver, developed in-house, powers each bud. Devialet pairs it with Qualcomm aptX, so Android handsets that support the codec get a higher-quality stream than AAC allows. Compared with the AirPods Pro 3, Gemini II sound bolder and more dynamic, while Apple's tuning is more neutral.

Poly Voyager Free 20

Each bud has a 10 mm speaker, and Poly tunes them for clear voice reproduction. Codec support covers SBC and AAC. For background music while working they are pleasant, but music lovers will prefer consumer-focused buds with richer tuning. The Poly Lens app offers EQ presets that add a little warmth for listening between meetings.