The navigation bar appears at the top edge of the Apple Watch screen. The system displays the clock at one end of the navigation bar and provides a title area at the opposite end.
The navigation bar title area gives people an easy onscreen reference point and a natural starting place for scanning a screen’s content. The title area can also include navigational elements in the following two cases:
IMPORTANT The clock appears in the navigation bar of every nonmodal app screen. You can’t remove the clock, so be sure to account for it in your designs.
The system uses the minimum layout margins to inset both your title and the clock from the edges of the screen, particularly on Apple Watch Series 4 and later (shown below). For guidance, see Designing for Rounded Corners.
Use the title area to describe the content of the screen. A descriptive title helps people understand what they can do in the screen and shows where they are in your app. In particular, apps that use that use hierarchal navigation should succinctly describe the current screen in the title area, even when that title appears next to a back button in a detail view. Avoid putting your app name in the title area.
Create a concise screen title. Aim for a word or short phrase that distills the purpose of the screen. Using no more than about 15 characters tends to work well.