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    Mobile Design Best Practices

    By Nitin Khatri (Senior UI/UX Designer & Educator)
    Reviewed by Sarah Miller (Principal Product Designer (Reviewer))
    Updated
    Video Lesson: 10:45
    Level: Advanced
    Official References:
    Figma Help CenterFigma YouTube Channel

    Mobile interfaces require unique considerations for touch targets, reachability, and limited screen real estate. This lesson covers industry standards for mobile-first design.

    Complete tasks and quiz to finish this lesson.
    Tasks
    Quiz

    Lesson Video

    Lesson Content

    Learning Objectives

    • •Design for appropriate tap target sizes (minimal 44px rules)
    • •Apply reachability principles for navigation and core actions
    • •Optimize typography and contrast for small mobile screens
    • •Structure mobile forms for efficient data entry and thumb-flow

    What You'll Learn

    1. Introduction to Mobile UI standards (iOS Human Interface, Material Design)
    2. Designing for the 'Thumb Zone' and reachability
    3. Handling mobile-specific interactions: swipes and long-presses
    4. Optimization techniques for mobile images and assets

    Key Concepts

    Touch Targets
    Reachability
    Thumb Zone
    Mobile Constraints

    Key Takeaways

    • ✓Mobile design prioritizes speed, clarity, and ease of reach.
    • ✓Tap targets must be large enough to be activated without error.
    • ✓Critical actions should be placed within the easiest range of the user's thumb.
    • ✓Simplicity in layout is necessary to avoid clutter on small displays.

    Practice Tasks

    Touch Target Audit

    Review and correct a mobile interface to ensure all interactive elements meet accessibility standards.

    • Measure all buttons and ensures they are at least 44x44px
    • Check that spacing between links is at least 8px to prevent accidental taps
    • Verify that clickable text has a minimum font size of 16px
    • Document the touch target dimensions for developer handoff

    Thumb Zone Optimization

    Arrange a mobile UI to prioritize ease of reach for the user's hand.

    • Place the primary Call to Action (CTA) in the bottom third of the screen
    • Position secondary navigation or settings in the harder-to-reach top corners
    • Implement a bottom tab bar for global navigation
    • Test the reachability using the Figma Mirror app on a real device

    Knowledge Check

    Pass with 75% or higher

    1. What is a 'Tap Target' in mobile UI design?

    2. What is the recommended minimum size for a touch target to ensure accessibility?

    3. What does the concept of the 'Thumb Zone' refer to?

    4. Why should you avoid using very small font sizes (e.g., 10px) for body text on mobile?

    Lesson FAQ

    Q: How can I practice what I learned in this lesson?

    We highly recommend opening your own Figma workspace in a side window and repeating the steps shown in the video. Utilize the tasks checklist above for specific practice targets.

    Q: What should I do if my layout behaves differently from the walkthrough?

    Double-check parent-child constraints and resizing values (e.g. Hug vs Fill). Ensure Auto Layout direction is correct and check the related guidebooks below for step-by-step visual references.

    Lesson Resources & Connections

    Prerequisites

    No prerequisites required. This is a foundational starter lesson.

    Related Guidebook

    How to create responsive layouts in Figma using Auto Layout

    Read Guidebook →

    How to use constraints in Figma for responsive resizing

    Read Guidebook →

    Relevant Design Tool

    Prompt Builder

    Formulate AI prompt scales.

    Open Companion Tool →

    Next Lesson

    Common Web Design Patterns