diff --git a/packages/react-native/Libraries/LogBox/Data/LogBoxData.js b/packages/react-native/Libraries/LogBox/Data/LogBoxData.js
index d3e06b0451303c..abc2401ac42159 100644
--- a/packages/react-native/Libraries/LogBox/Data/LogBoxData.js
+++ b/packages/react-native/Libraries/LogBox/Data/LogBoxData.js
@@ -30,6 +30,7 @@ export type LogData = $ReadOnly<{|
   message: Message,
   category: Category,
   componentStack: ComponentStack,
+  stack?: string,
 |}>;
 
 export type Observer = (
@@ -198,7 +199,7 @@ export function addLog(log: LogData): void {
   // otherwise spammy logs would pause rendering.
   setImmediate(() => {
     try {
-      const stack = parseErrorStack(errorForStackTrace?.stack);
+      const stack = parseErrorStack(log.stack ?? errorForStackTrace?.stack);
 
       appendNewLog(
         new LogBoxLog({
diff --git a/packages/react-native/Libraries/promiseRejectionTrackingOptions.js b/packages/react-native/Libraries/promiseRejectionTrackingOptions.js
index b951f612ecf6c7..5f9c9a1dafd880 100644
--- a/packages/react-native/Libraries/promiseRejectionTrackingOptions.js
+++ b/packages/react-native/Libraries/promiseRejectionTrackingOptions.js
@@ -10,6 +10,8 @@
 
 import typeof {enable} from 'promise/setimmediate/rejection-tracking';
 
+import LogBox from './LogBox/LogBox';
+
 let rejectionTrackingOptions: $NonMaybeType<Parameters<enable>[0]> = {
   allRejections: true,
   onUnhandled: (id, rejection = {}) => {
@@ -34,17 +36,29 @@ let rejectionTrackingOptions: $NonMaybeType<Parameters<enable>[0]> = {
       }
     }
 
-    const warning =
-      `Possible Unhandled Promise Rejection (id: ${id}):\n` +
-      `${message ?? ''}\n` +
-      (stack == null ? '' : stack);
-    console.warn(warning);
+    const warning = `Possible unhandled promise rejection (id: ${id}):\n${
+      message ?? ''
+    }`;
+    if (__DEV__) {
+      LogBox.addLog({
+        level: 'warn',
+        message: {
+          content: warning,
+          substitutions: [],
+        },
+        componentStack: [],
+        stack,
+        category: 'possible_unhandled_promise_rejection',
+      });
+    } else {
+      console.warn(warning);
+    }
   },
   onHandled: id => {
     const warning =
-      `Promise Rejection Handled (id: ${id})\n` +
+      `Promise rejection handled (id: ${id})\n` +
       'This means you can ignore any previous messages of the form ' +
-      `"Possible Unhandled Promise Rejection (id: ${id}):"`;
+      `"Possible unhandled promise rejection (id: ${id}):"`;
     console.warn(warning);
   },
 };