Daniel Ashbrook
Kent Lyons
ABSTRACT
The wristwatch is a device that is quick to access, but is currently under-utilized as a platform for interaction. We investigate interaction on a circular touchscreen wristwatch, empirically determining the error rate for variously-sized buttons placed around the rim. We consider three types of inter-target movements, and derive a mathematical model for error rate given a movement type and angular and radial button widths.
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Index Terms
- An investigation into round touchscreen wristwatch interaction
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