Alongside safe area context

Safe area insets and reserved regions answer different layout questions.

	react-native-safe-area-context	react-native-reserved-regions
Geometry	Four edge distances: top, right, bottom, left	A list of frames and region kinds
Typical use	Keep content within safe edges	Inspect a fold, hinge, or occluded area
Coordinate scope	Nearest safe area provider	Nearest reserved regions provider
Layout behavior	Offers hooks and SafeAreaView	Reports geometry; your app chooses the layout

Four edge distances cannot describe every obstruction in the middle of a display. A region list also does not replace normal system bar or keyboard handling. Use both libraries when your screen needs both kinds of information.

Match the provider bounds

For a direct comparison, make both provider views occupy the same rectangle:

import { SafeAreaProvider } from 'react-native-safe-area-context';
import { ReservedRegionsProvider } from 'react-native-reserved-regions';

function MeasuredPanel() {
  return (
    <SafeAreaProvider style={{ flex: 1 }}>
      <ReservedRegionsProvider style={{ flex: 1 }}>
        <PanelContent />
      </ReservedRegionsProvider>
    </SafeAreaProvider>
  );
}

PanelContent can call useSafeAreaInsets() and useReservedRegions(). These providers add no padding in this example. If you put a padded SafeAreaView between them, their measured bounds may differ, and direct numerical comparisons need to account for that.

react-native-safe-area-context is an optional app dependency. The reserved regions library does not depend on it; the example includes it to show both measurements.