Exploring Body-Anchored Augmented Reality Interfaces Across Different Mobility and Social Contexts

Researchers explore various on-body locations for anchoring user interfaces in Augmented Reality (AR), primarily to leverage onbody haptic feedback and enhance usability. However, most studies are conducted in controlled laboratory settings, limiting their applicability to real-world use. Consequently, there remains a lack of research on identifying suitable on-body AR UI placements across diverse social and mobility contexts. To address this gap, we conduct a user study investigating user preferences for anchoring UIs on six on-body locations-palm, back of the palm, inner and outer forearm, and right and left lap-across different mobility conditions (standing, walking, sitting) and social contexts (private, semiprivate, and public settings). Results show that users prefer anchoring AR interfaces on the outer forearm and palm across all conditions. However, participants noted the limited interaction space on hand surfaces. To address this, a follow-up study evaluated six UI layouts anchored to the palm and forearm, comparing body-aligned vs. vertically oriented placements and small vs. enlarged interfaces. Results show that vertically oriented, enlarged layouts yield superior performance, offering context-sensitive guidance for designing AR interfaces that balance comfort, preference, and usability.