Captioning Glasses: Live Subtitles for the Real World
By AR Compare Team ·
The most underreported thing heads-up-display glasses can do has nothing to do with notifications: they can put live subtitles on the world. A microphone path feeds a companion app, the app feeds text back, and the person across the table gets captioned in your eyeline while you keep looking at them. That is why searches for glasses with captions for deaf users and smart glasses with captions for deaf users lead to the same practical questions: where sound is captured, whether a phone and internet connection are required, and whether the frame has a camera. Because the models here carry no camera, they avoid the social friction that makes camera eyewear unwelcome in many rooms where captions matter. One scope note up front: these are consumer devices, not hearing aids or any kind of regulated medical equipment, and this page sticks to what the makers publish rather than making promises about hearing outcomes.
What each maker publishes
Yes means the published product supports the feature. No means the published hardware or documentation rules it out. Not published by the maker means the available material does not settle the question, so it is not treated as either Yes or No.
| Product | Live speech-derived text in view | Camera | Frame microphones | Offline text mode | Weight |
|---|---|---|---|---|---|
| Even Realities G2 | Yes | No | 4 | No | 36 g |
| Halliday G2 | Yes | No | 4 | Not published by the maker | Not published by the maker |
| INMO GO3 | Yes | No | 0 | Yes, for a limited language set | 58 g |
The zero in INMO’s microphone column is important: do not assume every captioning frame captures sound on the glasses. Even states that translation requires internet access, so its offline state is No. Halliday does not publish an offline mode for G2, so that state is Not published by the maker. INMO publishes limited offline language processing, which is not the same as saying every language or caption feature works offline.
How the caption pipeline actually works
Current captioning pairs share a broad path: captured speech becomes text in a companion system, and a monochrome display projects that text through the lenses. The capture point, offline support, and app differ, as the table shows. That sets the expectations. Latency exists — captions trail speech by a beat, the way live broadcast captions do. Connectivity matters for cloud features. And microphone placement matters: the Even Realities G2 and Halliday G2 each publish four frame microphones, while INMO GO3 publishes none.
The three kinds of captioning pair
The everyday camera-free HUD. The Even Realities G2 is the pair built to be worn all day without reading as a gadget: 36 g in titanium, IP65 sealing (sealed against dust, fine in rain), a battery that runs about two days, and a transcription-and-translation pipeline reviewers single out as a strength. Even Realities lists 37 speech-input languages for it, and it takes prescriptions from -12.00 to +12.00 — which matters here, because many caption-first buyers will wear these as their only glasses. The reviews collected on its product page describe exactly the quiet-captions life this page is about.
The meeting-captions specialist. The Halliday G2’s own feature list names the job outright: Meeting Flow — captions, transcripts, action items — alongside 45+ language live translation and a teleprompter. Same camera-free, four-microphone shape, with a battery Halliday rates at 12 hours and a brighter peak than the Even. For someone whose captioning need is nine-to-five — following multi-speaker meetings, leaving with a transcript — it is the closest fit there is, and the head-to-head with the Even is broken down spec-by-spec on our G2-vs-G2 comparison.
The dedicated conversation device. The INMO GO3 is a translation instrument first: 77 source languages through its Timekettle-powered engine (INMO’s own count), a binocular 640x480-per-eye green display, and a design aimed at live conversation rather than notifications. INMO rates its battery at 3 hours of active use, and at 58 g it has the profile of a tool you wear for the conversation, the appointment, or the trip — not the whole day. For caption sessions rather than caption lifestyles, it is the specialist.
Reading the specs like a captions buyer
Four specs do most of the deciding. Microphone count and capture location shape how speech reaches the app; the products above do not share one design. Daylight legibility is set by brightness: these pairs vary outdoors, and the HUD-glasses ranking compares that trade across every eligible pair. Battery decides whether captions are an event or a default. And prescription options decide whether the glasses can be your glasses: all three featured models offer a prescription route, detailed per model on their product pages.
The limits
Live captioning on glasses is real and useful, and it is also young. Recognition stumbles on crosstalk, heavy accents, and names; a phone left in another room takes the captions with it; and caption latency makes fast group banter a partial experience rather than a complete one. None of the makers position these as medical devices, and neither do we — for clinical hearing needs, start with an audiologist, and treat a captioning HUD as the situational layer on top. If that layer is what you want, start with the HUD-glasses ranking, compare the two closest rivals on Even G2 vs Halliday G2, and let the microphones, the battery, and the prescription options — not the marketing — pick the pair.
Frequently asked questions
Do glasses that caption speech in real time actually exist?
Yes. Several heads-up-display glasses run live speech-to-text through their companion apps and project the words as floating text in your eyeline — the Even Realities G2, the Halliday G2 (whose feature list includes meeting captions and transcripts), and the translation-focused INMO GO3 all do it. They are consumer devices, not hearing aids, and nothing on this page is a medical claim.
How do captioning glasses work?
A frame microphone or the paired phone captures nearby speech, the companion app converts it to text, and the glasses project the words onto a small transparent display. The capture path differs by product: Even G2 and Halliday G2 publish four frame microphones, while INMO GO3 publishes none. Check the exact setup and connection needs before buying.
Are captioning glasses a replacement for hearing aids?
No. Hearing aids are regulated medical devices that amplify sound; captioning glasses are consumer electronics that display text. They solve a different problem — following speech visually — and many people treat them as a complement in situations where audio alone falls short, such as noisy rooms or multi-speaker meetings. For a medical decision, that conversation belongs with an audiologist.
Can captioning glasses handle other languages too?
The same pipeline that captions same-language speech typically translates as well: Even Realities lists 37 speech-input languages for the G2, Halliday lists 45+, and INMO lists 77 source languages for the GO3 through its Timekettle-powered engine. Those counts are the makers' own claims, and quality varies by language pair.