[null,null,["最后更新时间 (UTC)：2025-07-27。"],[],[],null,["# Screen sizes\n\nMany of the watches within the Wear OS ecosystem have different screen sizes.\nWhen designing for Wear OS, keep in mind that your app surfaces are displayed on\nthese different screen sizes.\n\nPrinciples\n----------\n\nKeep the following principles in mind when designing for different devices.\n\n### Small first\n\nAlways design for the smallest supported round-screen emulator first:\n192 dp. Then, optimize for larger devices.\n\n### Design for scale\n\nDefine outer margins as percentages rather than absolute values, so that margins\ncan scale proportionally on round screens and avoid clipping any UI elements.\n\n### Font size\n\nThe height of a UI element might change in a non-linear way, depending on font\nscaling and accessibility settings such as bold text.\n\nExamples of common screen sizes\n-------------------------------\n\nThe following screen sizes are particularly common choices for Wear OS devices.\nIt's beneficial to use 225 dp as a breakpoint between smaller screens and larger\nscreens. \n192 dp to 224 dp \n225 dp to 240+ dp\n\nCanonical adaptive layouts\n--------------------------\n\nVisit the [canonical adaptive layouts](/design/ui/wear/guides/foundations/canonical-adaptive-layouts) page for more information on designing\nfor a variety of screen sizes."]]
