diff --git a/scripts/check-additional-danger.js b/scripts/check-additional-danger.js
index af91837641..dcfb29add7 100644
--- a/scripts/check-additional-danger.js
+++ b/scripts/check-additional-danger.js
@@ -7,8 +7,8 @@ async function safeRun(fnPath, { fail, warn, message, markdown, danger }) {
   }
 }
 
-
 module.exports = async function ({ fail, warn, message, markdown, danger }) {
   await safeRun('./check-github-label', { fail, warn, message, markdown, danger });
   await safeRun('./check-replay-stubs', { fail, warn, message, markdown, danger });
+  await safeRun('./check-android-sdk-mismatch', { fail, warn, message, markdown, danger });
 };
diff --git a/scripts/check-android-sdk-mismatch.js b/scripts/check-android-sdk-mismatch.js
new file mode 100644
index 0000000000..5c5bba7752
--- /dev/null
+++ b/scripts/check-android-sdk-mismatch.js
@@ -0,0 +1,138 @@
+const fs = require('fs');
+const path = require('path');
+const https = require('https');
+
+const GRADLE_PLUGIN_FILE = 'packages/core/plugin/src/withSentryAndroidGradlePlugin.ts';
+const BUILD_GRADLE_FILE = 'packages/core/android/build.gradle';
+
+const createSectionWarning = (title, content, icon = '❌') => {
+  return `### ${icon} ${title}\n\n${content}\n`;
+};
+
+/**
+ * Fetches the SDK version from gradle.properties in the gradle plugin GitHub repo.
+ * The file contains a line like: sdk_version = X.Y.Z
+ */
+function fetchBundledSentryAndroidVersion(gradlePluginVersion) {
+  return new Promise((resolve, reject) => {
+    const url = `https://raw.githubusercontent.com/getsentry/sentry-android-gradle-plugin/${gradlePluginVersion}/plugin-build/gradle.properties`;
+
+    https
+      .get(url, res => {
+        if (res.statusCode !== 200) {
+          reject(new Error(`Could not fetch gradle.properties for version ${gradlePluginVersion}`));
+          return;
+        }
+
+        let data = '';
+        res.on('data', chunk => (data += chunk));
+        res.on('end', () => {
+          // Look for: sdk_version = X.Y.Z
+          const versionMatch = data.match(/sdk_version\s*=\s*(\S+)/);
+          if (versionMatch) {
+            resolve(versionMatch[1]);
+          } else {
+            reject(new Error(`Could not find sdk_version in gradle.properties`));
+          }
+        });
+      })
+      .on('error', reject);
+  });
+}
+
+module.exports = async function ({ fail, warn, __, ___, danger }) {
+  const gradlePluginFileChanged = danger.git.modified_files.includes(GRADLE_PLUGIN_FILE);
+  const buildGradleFileChanged = danger.git.modified_files.includes(BUILD_GRADLE_FILE);
+
+  if (!gradlePluginFileChanged && !buildGradleFileChanged) {
+    console.log('Neither gradle plugin config nor build.gradle changed, skipping check.');
+    return;
+  }
+
+  console.log('Running Android SDK version mismatch check...');
+
+  // Read gradle plugin version from withSentryAndroidGradlePlugin.ts
+  const gradlePluginFilePath = path.join(process.cwd(), GRADLE_PLUGIN_FILE);
+  if (!fs.existsSync(gradlePluginFilePath)) {
+    console.log(`File not found: ${GRADLE_PLUGIN_FILE}`);
+    return;
+  }
+
+  const gradlePluginFileContent = fs.readFileSync(gradlePluginFilePath, 'utf8');
+  const gradlePluginVersionMatch = gradlePluginFileContent.match(
+    /export\s+const\s+sentryAndroidGradlePluginVersion\s*=\s*['"]([^'"]+)['"]/,
+  );
+
+  if (!gradlePluginVersionMatch) {
+    warn(
+      createSectionWarning(
+        'Android SDK Version Check',
+        'Could not parse `sentryAndroidGradlePluginVersion` from withSentryAndroidGradlePlugin.ts',
+        '⚠️',
+      ),
+    );
+    return;
+  }
+
+  const gradlePluginVersion = gradlePluginVersionMatch[1];
+  console.log(`Gradle plugin version: ${gradlePluginVersion}`);
+
+  // Read sentry-android version from build.gradle
+  const buildGradlePath = path.join(process.cwd(), BUILD_GRADLE_FILE);
+  if (!fs.existsSync(buildGradlePath)) {
+    console.log(`File not found: ${BUILD_GRADLE_FILE}`);
+    return;
+  }
+
+  const buildGradleContent = fs.readFileSync(buildGradlePath, 'utf8');
+  const sentryAndroidVersionMatch = buildGradleContent.match(/api\s+['"]io\.sentry:sentry-android:([^'"]+)['"]/);
+
+  if (!sentryAndroidVersionMatch) {
+    warn(
+      createSectionWarning(
+        'Android SDK Version Check',
+        'Could not parse `sentry-android` version from build.gradle',
+        '⚠️',
+      ),
+    );
+    return;
+  }
+
+  const sdkVersion = sentryAndroidVersionMatch[1];
+  console.log(`sentry-android version in build.gradle: ${sdkVersion}`);
+
+  // Fetch the version bundled by the gradle plugin
+  let bundledVersion;
+  try {
+    bundledVersion = await fetchBundledSentryAndroidVersion(gradlePluginVersion);
+    console.log(`sentry-android version bundled by gradle plugin ${gradlePluginVersion}: ${bundledVersion}`);
+  } catch (e) {
+    warn(
+      createSectionWarning(
+        'Android SDK Version Check',
+        `⚠️ Could not determine sentry-android version bundled by gradle plugin ${gradlePluginVersion}:\n\n${e.message}`,
+        '⚠️',
+      ),
+    );
+    return;
+  }
+
+  // Compare versions
+  if (sdkVersion !== bundledVersion) {
+    fail(
+      createSectionWarning(
+        'Android SDK Version Mismatch',
+        `| Component | Version |\n` +
+          `|-----------|--------|\n` +
+          `| \`sentry-android\` in build.gradle | **${sdkVersion}** |\n` +
+          `| \`sentry-android\` bundled by gradle plugin ${gradlePluginVersion} | **${bundledVersion}** |\n\n` +
+          `This mismatch will cause crashes on Android with error:\n` +
+          `> \`IllegalStateException: Sentry SDK has detected a mix of versions\`\n\n` +
+          `**Fix:** Update \`packages/core/android/build.gradle\` to use version \`${bundledVersion}\` ` +
+          `or wait for a gradle plugin release that bundles \`${sdkVersion}\`.`,
+      ),
+    );
+  } else {
+    console.log('✅ sentry-android versions match');
+  }
+};