Mobile interfaces contain various interactive elements (buttons, menus, icons, links) that must be sized and spaced properly for reliable touch interaction.

Touch target guidelines vary by platform:

• WCAG minimum: 9x9mm (34px)^[1]
• Material Design: 48x48px
• iOS: 44x44px
• Increase sizes further for apps used while moving, allowing room for error

Key design considerations:

• Keep at least 8dp/16px spacing between interactive elements
• Add inactive space around elements with minimum-sized touch targets
• Position primary buttons within thumb's reach, as users often operate phones one-handed