M300XL UI Design Best Practices
Written by Christian Powell
Updated over a week ago

Screen Orientation

The device may be worn on the left or right eye, and will always be in landscape or reverseLandscape orientation.

  • The proper orientation to specify for your Activity in the manifest is:




The user will navigate your UI with the three physical buttons or touch swipes that can be automatically translated to KeyEvent key codes as described in the Interaction Methods article.

  • Allow UI elements to be navigated with simple left/right/up/down navigation, and give users clear visual indicators which UI element currently has focus.

  • Consider adding customized verbal navigation using the Vuzix Speech SDK.

  • Explicitly control the focus order. More details can be found in the separate Navigation and Focus article.

Usability Best Practices

The most important aspect to a well-designed user interface for an application intended to be used on the M300XL and M300 is simplicity. This is largely driven by the limited amount of space on the display.

  • Avoid complex menu systems, instead use a linear progression through interface components to minimize the amount of time a user needs to dedicate to navigating the application UI.

  • Limit the amount of information being displayed to the user at any given moment to be very contextually relevant. I.E. a single, specific instruction to guide the user to performing an individual step in a procedure.

  • Avoid displaying complex diagrams or schematics to the user, instead opt for displaying only the components immediately relevant to the task at hand.

  • Try to minimize the frequency of scenarios requiring the user to physically interact with the device by leveraging alternative methods of advancing a user through the application interface. The best way to do so is by leveraging voice commands, but this can also be done by automatically advancing a user to the next screen based on any number of interactions, such as scanning a barcode, taking a picture, or some other form of verification that the step has been completed.

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