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SixthSense Technology: What the 2009 Wearable Prototype Actually Did

MIT's SixthSense was a 2009 wearable gestural-interface prototype that projected digital information onto physical surfaces. Here's how it worked and what its documentation establishes about availability in 2026.
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SixthSense was a wearable gestural-interface research prototype developed at the MIT Media Lab—not a verified consumer device available in 2026. It used a pocket projector, mirror, and camera to put digital information on physical surfaces and interpret hand gestures through computer vision.

What SixthSense technology means

Here, SixthSense refers to the wearable interface associated with MIT Media Lab researchers Pranav Mistry and Pattie Maes. The name describes a way to add digital information and interaction to the physical world; it does not mean a literal extra biological sense. MIT’s 2009 publication presents it as a prototype rather than a finished retail product.

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The name has also been used for a separate Microsoft Research project. Microsoft’s SixthSense enterprise platform used RFID tags and workplace data to infer interactions among people, objects, and spaces. It was not the MIT camera-and-projector wearable.

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How the wearable prototype worked

The MIT system combined a pocket projector, a mirror, and a camera in a pendant-like wearable assembly. The projector and camera connected to a mobile computer carried in the user’s pocket. The projector displayed information on walls and other objects, which could then serve as interactive surfaces; computer vision processed the camera view to recognize and track gestures and physical objects.

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On the archived project page, Mistry describes colored markers worn at the fingertips. The software tracked their movements and arrangements to interpret gestures and control projected applications. The components worked as a system: the camera observed the hands or objects, the computer interpreted that input, and the projector displayed the result on a nearby surface.

What people could do with it

Examples shown in the prototype demonstrations included interacting with projected maps, drawing on surfaces, and placing contextual information on physical objects. These were demonstrations of the research system, not a list of guaranteed features in a current product.

  • Navigate a map: use hand gestures to move around or zoom a map projected onto a nearby surface.
  • Draw on a surface: track a fingertip, such as the index finger, to create marks in a projected application.
  • See context alongside objects: project digital information onto or near physical objects.

The demonstrations illustrate the central idea: rather than requiring a dedicated touchscreen, SixthSense used the surrounding environment as the display and the wearer’s gestures as input.

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History and the separate RFID project

MIT’s publication dates the wearable interface to December 16, 2009, and lists Mistry and Maes as its authors. TED’s Pranav Mistry speaker archive describes the project in the context of his work as an MIT graduate student and records his 2009 demonstrations. Mistry’s project page also references a 2009 SIGGRAPH Asia publication and TEDIndia presentation.

Microsoft Research’s different project with the same name was established on December 26, 2008, according to its project page. It relied on passive RFID tags on employee badges and personal items, workplace readers, and enterprise information such as calendars and presence. The shared name does not indicate shared hardware or that the two systems were versions of one product.

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Is SixthSense available as a product in 2026?

The available project documentation establishes a research prototype, an archived description, and an open-source code repository; it does not establish a currently supported consumer device or a complete retail build kit in 2026. The repository README describes code written in C# with OpenCV for .NET for Windows under the CLR and characterizes an Android port as incomplete. Those are the repository’s own statements, not a current compatibility audit.

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Accordingly, a modern mini projector or wearable camera should not be described as the original SixthSense device or assumed compatible with its software. The materials reviewed do not verify a current, complete build path or supported hardware combination.

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What a historical build-cost estimate tells you

Mistry’s archived project page gives the prototype’s build cost as approximately $350. That is a historical estimate from the project page, not a current price, parts list, or reliable budget for recreating the system today. Component availability, software compatibility, and present-day costs are not established by that figure.

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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.

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