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Ring form factor: a design space for interaction

We present a design space for interaction with a ring, worn on the user's finger. Whilst prior work has studied the ring as a means of attachment for hand motion sensors, we investigate the interaction possibilities provided by the natural affordance of the ring form factor itself. Interactions include, for example, changing the placement of the ring on the fingers, moving the ring along or around a finger and spinning of the ring on a surface.