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App Design Guidelines

Optical See-Through Design​

XREAL AURA uses OST (Optical See-Through) technology. XREAL AURA features an optical see-through display, allowing users to view their physical surroundings directly; virtual content stability and responsiveness remain subject to system, application, and ambient conditions.

  • Optical see-through (surroundings directly visible) — Design for content overlay rather than completely occluding reality.
  • System responsiveness and tracking state — Virtual content stability and latency depend on system workload, application optimization, and environmental conditions.
  • Ambient light affects visibility — Consider electrochromic states in UI design.
  • Limited brightness — High-contrast UI elements work better.
  • No video passthrough — Real-world appearance cannot be modified.

UI/UX Guidelines​

Text Readability:

  • High angular resolution (PPD) for crisp text
  • Use sufficient font sizes (minimum 14px equivalent)
  • High contrast text on semi-transparent backgrounds

Window Placement:

  • Default FOV is 70° diagonal
  • Keep primary content within central 50° for comfort
  • Avoid placing critical UI at extreme edges

Electrochromic Awareness:

  • Design for multiple transparency levels
  • Test UI across both darkest (Level 5) and clearest (Level 1) dimming levels
  • Avoid relying on absolute brightness