Key figures: Sergey Brin, Isabelle Olsson (lead designer), Babak Parviz (project founder), Steve Lee (project lead), selected Glass Explorers
Summary
In April 2013, Google began distributing Google Glass prototypes to qualified users through its Glass Explorer Program, marking the technology industry’s first serious attempt to bring augmented reality glasses to a mainstream audience. Google X, the company’s semi-secret innovation lab, had been developing the device since approximately 2011 under Babak Parviz, a University of Washington professor recruited by Google. Co-founder Sergey Brin became the project’s most visible champion.
The Explorer Program selected 8,000 applicants through a social media competition in February 2013, inviting candidates to submit a 50-word description of how they would use Glass using the hashtag #IfIHadGlass on Google+ or Twitter. Successful applicants were required to pay $1,500 for their unit and attend a pick-up event in New York, San Francisco, or Los Angeles. Google later opened the program more broadly, and by January 2014, Glass became available for one-day public purchase in the United States at the same $1,500 price point.
Technical Specifications
Google Glass was engineered to deliver digital information with minimal interference with the wearer’s environment. Key technical characteristics included:
- Display: A prism-based optical head-up display positioned above the right eye, capable of displaying content equivalent to a 25-inch HD screen viewed from eight feet away
- Camera: 5-megapixel still camera and 720p video recording at 30 frames per second
- Audio: Bone conduction transducer, transmitting sound through the wearer’s skull to the inner ear without blocking ambient noise
- Weight: 36 grams (42 grams including the frame), lighter than most conventional eyeglasses of the era
- Processor: Texas Instruments OMAP 4430, paired with 1 GB of RAM and 16 GB of storage (12 GB usable)
- Connectivity: Wi-Fi (802.11b/g) and Bluetooth 4.0; GPS was not included in the initial release
- Battery life: Approximately one day of typical use, or 45 minutes of continuous video recording
Voice commands prefaced with “OK Glass” activated the device. Glass also featured a touchpad along the right side of the frame for navigation. The device ran a modified version of Android and synced with Android and iOS smartphones via a companion app called MyGlass.
Public Debut and Early Demonstrations
Google first previewed Glass publicly at Google I/O in June 2012, in what became one of the most theatrical product demonstrations in tech history. Sergey Brin participated remotely via Google+ Hangout as a team of skydivers wearing Glass prototypes jumped from a blimp above San Francisco’s Moscone Center, livestreaming footage from their perspective to conference attendees below. The demonstrators then landed on the convention center’s roof and rappelled down the building’s exterior—all while wearing Glass and transmitting live video.
Brin appeared regularly in public wearing Glass throughout 2012 and 2013, including at New York Fashion Week in February 2013, where Glass was featured in a Diane von Furstenberg runway show. Time magazine included Glass on its list of the 100 Best Inventions of 2012. The design collaboration with von Furstenberg’s brand produced a line of fashionable Glass frames, an attempt to reposition the device from gadget to accessory.
Privacy Backlash and “Glassholes”
The Explorer Program’s very success generated a significant backlash. The device’s front-facing camera, which could record video without obvious indication to bystanders, sparked immediate controversy over covert recording and the erosion of social norms around privacy in shared spaces. The pejorative term “Glasshole” entered popular usage to describe Glass wearers perceived as intrusive or socially oblivious.
By mid-2013, numerous establishments began banning Google Glass explicitly: Seattle’s 5 Point Café displayed a sign reading “for the record, we were the first Seattle business to ban in [sic] June 2013,” and others followed in Las Vegas casinos, movie theaters, hospitals, and strip clubs. A West Virginia legislator introduced a bill in March 2013—months before the Explorer launch—to ban driving while wearing Glass, citing distraction concerns.
The privacy tensions ran parallel to revelations that year about government surveillance. The Snowden NSA disclosures of June 2013 heightened public sensitivity to data collection of all kinds. Critics noted that Glass wearers were simultaneously capturing the world around them and feeding data—including location, photos, and behavioral patterns—to Google, raising dual concerns about corporate and state surveillance infrastructure.
Applications and Developer Ecosystem
Google released the Glass Development Kit (GDK) in November 2013, enabling developers to build native applications—called “Glassware”—that ran directly on the device rather than requiring a phone connection. Early Glassware spanned a wide range of use cases:
- Navigation: Google Maps turn-by-turn directions overlaid on the wearer’s field of view
- Communication: Gmail, SMS, and Google Hangouts integration
- Health: Applications for surgeons to view patient data during operations without looking away from the patient; Acer developed Glass-compatible software for emergency medical technicians
- Media: CNN, The New York Times, and ESPN released apps delivering news headlines and sports scores
- Productivity: Evernote and Word Lens (real-time visual translation of printed text) were among the early third-party applications
Word Lens, which translated text seen through the camera in real time, was widely cited as a glimpse of Glass’s transformative potential. Google acquired Word Lens’s developer, Quest Visual, in May 2013, making the translation capability free for Glass users.
Decline of the Consumer Program
Despite initial enthusiasm, Glass failed to achieve mainstream consumer adoption. Sales figures were never disclosed, but industry analysts estimated Google sold fewer than 250,000 units during the Explorer Program. Key obstacles included the $1,500 price point (prohibitive for broad adoption), battery life limitations, the absence of a “killer application” that demonstrated undeniable everyday value, and the persistent social stigma around wearing a camera on one’s face.
On January 15, 2015, Google announced it was ending the Explorer Program and closing the Google Glass social media and support pages. The statement, which avoided the word “failure,” noted the device would “graduate” from the Google X lab, with Tony Fadell—former Apple engineer and founder of Nest—appointed to lead a reconstituted Glass effort. The consumer Glass project effectively ended with this announcement.
Enterprise Pivot and Legacy
Glass did not disappear entirely. Google pivoted to an enterprise-focused Glass Enterprise Edition, released in 2017 and updated in 2019, targeting industrial and medical applications where hands-free information access had clear practical value. Major adopters included General Electric for aircraft engine assembly, DHL for warehouse logistics, Boeing for aircraft wiring harness assembly, and Dignity Health for physician documentation. The Enterprise Edition retained the core display and camera hardware while addressing battery life and durability for professional environments.
A second Enterprise Edition update in 2019 added a faster processor and USB-C charging. Google announced in March 2023 that it would discontinue even the Enterprise Edition, ending the Glass product line after twelve years. The final shipment date was March 15, 2023.
Significance
Google Glass was the technology industry’s first serious mainstream effort to commercialize augmented reality at scale, predating by years the consumer AR headsets introduced by Microsoft (HoloLens, 2016), Apple (Vision Pro, 2024), and Meta (Quest 3, 2023). Its 2013 Explorer launch established glass-form-factor wearables as a viable—if challenging—product category and generated the first large-scale real-world data on user behavior with AR overlays.
The project’s failure to achieve consumer success was instructive. It demonstrated that technical feasibility does not guarantee social acceptability; that price, battery life, and form factor must meet mainstream thresholds before a category can scale; and that the “cameras everywhere” implications of wearable AR would require either technical mitigation or substantial cultural adaptation before broad public acceptance. The privacy tensions Glass surfaced in 2013 anticipated debates that continued to intensify with the proliferation of smartphones with always-on cameras and, eventually, AI-powered surveillance tools.
Glass also influenced the consumer wearables category more broadly. Apple’s development of the Apple Watch, announced in September 2014, reflected lessons from Glass: focus on a natural body location (wrist rather than face), a non-camera-forward design reducing privacy concerns, and a clear primary use case (health and fitness) rather than a general-purpose computer. The cryptocurrency speculation of 2013 and the Glass launch shared a common thread—both reflected heightened interest in technologically mediated alternatives to existing institutional structures, and both encountered the gap between technological possibility and societal readiness.