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Halliday’s original AI glasses used a small DigiWindow module inside the frame to direct an image toward the wearer’s eye, rather than forming a display through a waveguide lens. The result was a small, glanceable viewing area—not a broad augmented-reality overlay. “Lens-free” describes the display optics, not the absence of ordinary or prescription lenses.
Announced at CES 2025, the glasses were presented with notifications, translation, notes, navigation, audio, and AI assistance. Those were launch-era features and plans, not proof of current availability or independently verified performance. Halliday G2 is a separate, later product with binocular waveguides.
What Halliday unveiled at CES 2025
Halliday introduced its first-generation glasses at CES 2025, including the CES Unveiled event. The product was positioned between ordinary audio glasses and a full mixed-reality headset: it looked broadly like conventional eyewear, but could place small pieces of digital information in the wearer’s view.
TechCrunch reported a full price of $489, a planned March 2025 shipping start, and a $369 Kickstarter pledge offer. These are historical launch terms, not evidence of current availability or price for the original model.
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Launch coverage described:
- A small DigiWindow module inside the frame above the right eye
- Microphones and speakers for voice and audio functions
- Smartphone connectivity
- Notifications, translation, notes or cheat-sheet content, and navigation
- Voice and temple controls; a control ring was also described, but the TechCrunch reporter did not test it
The display was intended for short glances while the wearer continued looking forward, rather than continuous viewing of a large virtual screen.
How the lens-free DigiWindow display works
Halliday’s DigiWindow places the display hardware in the frame instead of distributing display optics through a waveguide lens. TechCrunch described a tiny round module above the right eye that directs light toward the eye. TechCrunch reported the resulting view as equivalent to a 3.5-inch circular display; that is a reported comparison, not an independent optical measurement. Gyges Labs, which developed DigiWindow, describes its volume as less than 0.1 cc—a company figure, not an independent measurement.
In practical terms, the system is closer to a tiny near-eye display than to transparent screens across the lenses. A notification or translated line appears in a defined viewing region, which the wearer can glance at and then look away from.
“Lens-free” does not mean “without lenses”
Halliday’s use of lens-free refers to the digital display architecture: the image does not depend on a waveguide/display lens to form it. The glasses can still use ordinary or prescription lenses. TechCrunch reported that prescription lenses could be fitted to the original glasses.
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Halliday G2 is a different generation. Its display is integrated into a binocular waveguide structure, so its optical design should not be confused with the original DigiWindow approach.
Potential advantages and trade-offs
Gyges Labs describes DigiWindow as a private near-eye display. Halliday’s approach could avoid some of the optical complexity of a conventional waveguide design, but the available research contains no independent laboratory measurement of DigiWindow performance. Claims about privacy, comfort, readability, or eye strain should be attributed to the company rather than presented as established results.
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The small viewing area is also a trade-off: it suits short messages and prompts better than a broad image spanning the wearer’s view. In TechCrunch’s CES hands-on report, the module had slide and tilt adjustment, but the reporter could not align it comfortably with their high nose bridge and wore the glasses lower. This is one person’s fit observation, not evidence of a universal defect.
What the Halliday AI glasses were designed to do
The original product was pitched as an assistant that could provide information without requiring the wearer to take out a phone. Halliday’s launch claims and CES demonstrations included several intended uses, but the available research does not establish their current availability or performance.
Notifications, notes, and navigation
Launch coverage described notifications, notes or cheat-sheet content, and navigation as planned functions. The small display was intended for brief information rather than a full app interface.
Live translation
TechCrunch reported a short bilingual CES demonstration in which English subtitles appeared while Halliday founder Carter Hou spoke Chinese. TechCrunch also reported that Halliday announced support for 40 languages; this was a launch-era product claim, not an independent evaluation of translation quality. The reviewed sources do not establish accuracy across languages, response time, or performance in noisy environments.
AI answers and proactive assistance
Halliday described the glasses as proactive AI eyewear, but the proactive AI feature was not ready for TechCrunch to test at CES 2025. KDDI America also reported that Proactive AI remained under development at that time. Treat it as a launch-era plan, not a proven or currently available capability.
Voice, temple controls, and the ring
Launch reporting described voice interaction and temple controls. It also mentioned a control ring, which the TechCrunch reporter did not test. The reviewed sources do not establish the ring’s current availability or compatibility.
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Privacy: a microphone-based wearable, not a camera system
The original Halliday glasses used microphones and speakers for AI and audio functions. The reviewed launch sources describe microphones, but do not establish detailed current listening behavior or data-retention practices. Do not infer privacy safeguards from the claim that the display is visible only to the wearer.
Keep these issues separate:
- Display privacy: Gyges Labs describes DigiWindow as private to the wearer; this is the developer’s promotional description.
- Audio privacy: microphones can raise questions about nearby conversation when listening features are active. Check the applicable software settings and local consent rules.
A discreet display does not make a microphone-equipped wearable socially invisible. Users should consider consent and local rules when activating listening features.
Original Halliday glasses versus Halliday G2
Halliday G2 is a distinct later product, not the original DigiWindow glasses with a new name. Halliday’s official pages list G2 specifications and store terms; those are manufacturer claims and can change. The comparison below separates the generations rather than treating their specifications as interchangeable.
| Feature | Original Halliday glasses | Halliday G2 |
|---|---|---|
| Display architecture | Frame-mounted DigiWindow directed toward the eye | Binocular waveguide with dual microLED optical engines |
| Fit and positioning | Module above the right eye; TechCrunch reported slide and tilt adjustment and one reporter’s difficulty aligning it comfortably | Waveguide layers bonded into the lens structure; Halliday’s design page describes prescription, display, and protective layers |
| Display specifications | TechCrunch reported a 3.5-inch-equivalent circular view; no independently measured field of view or brightness located | Halliday lists 600 × 300 pixels per eye, 25.2-degree field of view, and peak brightness up to 1,600 nits |
| Prescription support | TechCrunch reported prescription-lens compatibility; detailed ranges not established | Halliday lists -9.00 to +2.00 sphere and -3.00 to +3.00 cylinder |
| Camera and privacy design | Do not assume G2 specifications apply to the original | Halliday describes G2 as camera-free |
| Battery and weight | No independent figures located | Halliday lists 49 g and up to 12 hours of regular-use battery life |
| Software emphasis | Launch materials described notifications, translation, notes, navigation, and AI assistance; proactive AI was not ready for TechCrunch to test | Check Halliday’s current product page for current software features; launch-era original features do not establish G2 capabilities |
| Price and availability | TechCrunch reported $489 full price and a $369 Kickstarter pledge offer in January 2025; these are historical terms | Halliday’s official page listed $599 on October 7, 2026. It said non-prescription Batch 2 orders were estimated to ship three business days after ordering and prescription orders in four to six weeks |
The G2 specifications in the table are manufacturer-listed claims, not independently verified test results. Halliday’s store terms and estimated shipping windows are time-sensitive; check the live product page before making a purchase decision.
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For the original glasses, TechCrunch reported prescription-lens compatibility, but the reviewed sources do not establish a supported prescription range or current ordering process. For G2, Halliday lists support from -9.00 to +2.00 sphere and -3.00 to +3.00 cylinder. These G2 figures should not be applied to the original product.
Before buying prescription smart eyewear, confirm:
- Whether your prescription falls within the manufacturer’s current stated range.
- Whether your pupillary distance and lens measurements can be accommodated.
- Whether prescription customization is available in your country.
- How replacement lenses, repairs, returns, and warranty service work.
- Whether the frame and display position are comfortable for your intended use.
Availability: preorder context matters
The original Halliday glasses were announced with a planned March 2025 shipping start, according to TechCrunch, but that historical plan does not establish current availability. The reviewed research did not verify a current Amazon listing or seller for the original model.
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As checked on October 7, 2026, Halliday’s official G2 page listed a $599 price and estimated shipping of three business days after ordering for non-prescription Batch 2 orders, and four to six weeks for prescription orders. These are live-store terms that may change; verify them directly before ordering. The reviewed sources provide no independent laboratory testing of DigiWindow performance.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What Halliday’s approach gets right—and what remains unproven
The promising idea
The original glasses challenged the assumption that smart glasses need a large, lens-integrated display. A small frame-mounted module could deliver short messages while leaving the main forward view unobstructed. That may appeal to people seeking occasional prompts rather than a persistent overlay.
The combination of audio and a small visual display was suited to notifications, translation prompts, and brief information. Gyges Labs’ description of a private near-eye display explains the intended design, but remains the developer’s promotional claim.
The unanswered questions
The reviewed sources do not provide independent measurements of DigiWindow performance. Practical questions include:
- How easy the display is to read outdoors
- How consistently different wearers can align the module
- How quickly information appears after a request
- How accurately translation works in different settings
- How long the original glasses last on a charge
- How comfortable the viewing area is over extended use
- How the frame, prescription lenses, and electronics hold up over time
CES demonstrations and manufacturer claims should not be treated as independent tests of everyday reliability.
Bottom line for buyers and technology watchers
Halliday’s CES 2025 glasses were notable for using a frame-mounted DigiWindow to direct a small image toward the eye rather than forming a broad display through the lens. They were designed more for glances at information than for full-scene AR.
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The later G2 is a separate binocular-waveguide product with its own manufacturer-listed specifications and current store terms. Keep the two generations distinct, and distinguish announcement-era claims from independent testing and current availability.
FAQ
How does Halliday’s DigiWindow display work?
A small module inside the frame directs an image toward the wearer’s eye. TechCrunch described a 3.5-inch-equivalent circular view; that is a reported comparison, not an independent measurement.
What does “lens-free” mean in Halliday glasses?
It means the display image is not formed through a waveguide/display lens. The glasses can still use ordinary or prescription lenses.
Did CES reporters test Halliday’s proactive AI?
No. TechCrunch reported that the proactive AI feature was not ready to test at CES 2025, and KDDI America reported that it remained under development at that time.
Is Halliday G2 the same product as the original Halliday glasses?
No. The original used frame-mounted DigiWindow projection; G2 uses a binocular waveguide display with dual microLED optical engines.
When will Halliday G2 orders ship?
On October 7, 2026, Halliday’s official page estimated three business days after ordering for non-prescription Batch 2 orders and four to six weeks for prescription orders. Check the live page because shipping estimates can change.
Can I buy the original Halliday glasses on Amazon?
The reviewed research did not verify a current Amazon listing or seller for the original model. Confirm a listing’s identity and generation before purchasing.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
