diff --git a/cobalt/browser/client_hint_headers.cc b/cobalt/browser/client_hint_headers.cc
index 99794d5d7050..b9acc0ac8cd8 100644
--- a/cobalt/browser/client_hint_headers.cc
+++ b/cobalt/browser/client_hint_headers.cc
@@ -49,6 +49,9 @@ std::vector<std::string> GetClientHintHeaders(
   AddHeader(headers, "Android-OS-Experience",
             platform_info.android_os_experience());
 
+  AddHeader(headers, "Android-Play-Services-Version",
+            platform_info.android_play_services_version());
+
   return headers;
 }
 
diff --git a/cobalt/browser/client_hint_headers_test.cc b/cobalt/browser/client_hint_headers_test.cc
index 7cb26e9a8e41..3706e1afe1b7 100644
--- a/cobalt/browser/client_hint_headers_test.cc
+++ b/cobalt/browser/client_hint_headers_test.cc
@@ -29,12 +29,14 @@ TEST(ClientHintHeadersTest, GetClientHintHeaders) {
   UserAgentPlatformInfo platform_info;
   platform_info.set_android_build_fingerprint("abc/def:123.456/xy-z");
   platform_info.set_android_os_experience("Amati");
+  platform_info.set_android_play_services_version("123");
 
   std::vector<std::string> headers = GetClientHintHeaders(platform_info);
   EXPECT_THAT(headers,
               UnorderedElementsAre(
                   "Sec-CH-UA-Co-Android-Build-Fingerprint:abc/def:123.456/xy-z",
-                  "Sec-CH-UA-Co-Android-OS-Experience:Amati"));
+                  "Sec-CH-UA-Co-Android-OS-Experience:Amati",
+                  "Sec-CH-UA-Co-Android-Play-Services-Version:123"));
 }
 
 }  // namespace
diff --git a/cobalt/browser/user_agent_platform_info.cc b/cobalt/browser/user_agent_platform_info.cc
index 21e07747449a..5c0d65895531 100644
--- a/cobalt/browser/user_agent_platform_info.cc
+++ b/cobalt/browser/user_agent_platform_info.cc
@@ -280,16 +280,23 @@ void InitializeUserAgentPlatformInfoFields(UserAgentPlatformInfo& info) {
   auto platform_info_extension =
       static_cast<const CobaltExtensionPlatformInfoApi*>(
           SbSystemGetExtension(kCobaltExtensionPlatformInfoName));
-  if (platform_info_extension &&
-      strcmp(platform_info_extension->name, kCobaltExtensionPlatformInfoName) ==
-          0 &&
-      platform_info_extension->version >= 1) {
-    result = platform_info_extension->GetFirmwareVersionDetails(
-        value, kSystemPropertyMaxLength);
-    if (result) {
-      info.set_android_build_fingerprint(value);
+  if (platform_info_extension) {
+    if (platform_info_extension->version >= 1) {
+      result = platform_info_extension->GetFirmwareVersionDetails(
+          value, kSystemPropertyMaxLength);
+      if (result) {
+        info.set_android_build_fingerprint(value);
+      }
+      info.set_android_os_experience(
+          platform_info_extension->GetOsExperience());
+    }
+    if (platform_info_extension->version >= 2) {
+      int64_t ver = platform_info_extension->GetCoreServicesVersion();
+      if (ver != 0) {
+        std::string sver = std::to_string(ver);
+        info.set_android_play_services_version(sver);
+      }
     }
-    info.set_android_os_experience(platform_info_extension->GetOsExperience());
   }
 
   info.set_cobalt_version(COBALT_VERSION);
@@ -433,6 +440,9 @@ void InitializeUserAgentPlatformInfoFields(UserAgentPlatformInfo& info) {
         } else if (!input.first.compare("android_os_experience")) {
           info.set_android_os_experience(input.second);
           LOG(INFO) << "Set android os experience to " << input.second;
+        } else if (!input.first.compare("android_play_services_version")) {
+          info.set_android_play_services_version(input.second);
+          LOG(INFO) << "Set android play services version to " << input.second;
         } else if (!input.first.compare("cobalt_version")) {
           info.set_cobalt_version(input.second);
           LOG(INFO) << "Set cobalt type to " << input.second;
@@ -559,6 +569,12 @@ void UserAgentPlatformInfo::set_android_os_experience(
   android_os_experience_ = Sanitize(android_os_experience, isTCHAR);
 }
 
+void UserAgentPlatformInfo::set_android_play_services_version(
+    const std::string& android_play_services_version) {
+  android_play_services_version_ =
+      Sanitize(android_play_services_version, base::IsAsciiDigit);
+}
+
 void UserAgentPlatformInfo::set_cobalt_version(
     const std::string& cobalt_version) {
   cobalt_version_ = Sanitize(cobalt_version, isTCHAR);
diff --git a/cobalt/browser/user_agent_platform_info.h b/cobalt/browser/user_agent_platform_info.h
index 658e0cba0215..f9267345dff2 100644
--- a/cobalt/browser/user_agent_platform_info.h
+++ b/cobalt/browser/user_agent_platform_info.h
@@ -82,6 +82,9 @@ class UserAgentPlatformInfo : public web::UserAgentPlatformInfo {
   const std::string& android_os_experience() const override {
     return android_os_experience_;
   }
+  const std::string& android_play_services_version() const override {
+    return android_play_services_version_;
+  }
   const std::string& cobalt_version() const override { return cobalt_version_; }
   const std::string& cobalt_build_version_number() const override {
     return cobalt_build_version_number_;
@@ -118,6 +121,8 @@ class UserAgentPlatformInfo : public web::UserAgentPlatformInfo {
   void set_android_build_fingerprint(
       const std::string& android_build_fingerprint);
   void set_android_os_experience(const std::string& android_os_experience);
+  void set_android_play_services_version(
+      const std::string& android_play_services_version);
   void set_cobalt_version(const std::string& cobalt_version);
   void set_cobalt_build_version_number(
       const std::string& cobalt_build_version_number);
@@ -142,8 +147,9 @@ class UserAgentPlatformInfo : public web::UserAgentPlatformInfo {
   std::string evergreen_type_;
   std::string evergreen_file_type_;
   std::string evergreen_version_;
-  std::string android_build_fingerprint_;  // Only via Client Hints
-  std::string android_os_experience_;      // Only via Client Hints
+  std::string android_build_fingerprint_;      // Only via Client Hints
+  std::string android_os_experience_;          // Only via Client Hints
+  std::string android_play_services_version_;  // Only via Client Hints
 
   std::string cobalt_version_;
   std::string cobalt_build_version_number_;
diff --git a/cobalt/web/cobalt_ua_data_values.idl b/cobalt/web/cobalt_ua_data_values.idl
index eef1fa00f3b1..8e33fbd97647 100644
--- a/cobalt/web/cobalt_ua_data_values.idl
+++ b/cobalt/web/cobalt_ua_data_values.idl
@@ -24,6 +24,7 @@ dictionary CobaltUADataValues : UADataValues {
   DOMString evergreenVersion;
   DOMString androidBuildFingerprint;
   DOMString androidOsExperience;
+  DOMString androidPlayServicesVersion;
   DOMString starboardVersion;
   DOMString originalDesignManufacturer;
   DOMString deviceType;
diff --git a/cobalt/web/cobalt_ua_data_values_interface.cc b/cobalt/web/cobalt_ua_data_values_interface.cc
index ac4a9c0d71f4..11f4c848ced8 100644
--- a/cobalt/web/cobalt_ua_data_values_interface.cc
+++ b/cobalt/web/cobalt_ua_data_values_interface.cc
@@ -73,6 +73,9 @@ CobaltUADataValuesInterface::CobaltUADataValuesInterface(
   if (init_dict.has_android_os_experience()) {
     android_os_experience_ = init_dict.android_os_experience();
   }
+  if (init_dict.has_android_play_services_version()) {
+    android_play_services_version_ = init_dict.android_play_services_version();
+  }
   if (init_dict.has_starboard_version()) {
     starboard_version_ = init_dict.starboard_version();
   }
diff --git a/cobalt/web/cobalt_ua_data_values_interface.h b/cobalt/web/cobalt_ua_data_values_interface.h
index 22599ff77eb2..9f5b94135aed 100644
--- a/cobalt/web/cobalt_ua_data_values_interface.h
+++ b/cobalt/web/cobalt_ua_data_values_interface.h
@@ -54,6 +54,9 @@ class CobaltUADataValuesInterface : public script::Wrappable {
   const std::string& android_os_experience() const {
     return android_os_experience_;
   }
+  const std::string& android_play_services_version() const {
+    return android_play_services_version_;
+  }
   const std::string& starboard_version() const { return starboard_version_; }
   const std::string& original_design_manufacturer() const {
     return original_design_manufacturer_;
@@ -87,6 +90,7 @@ class CobaltUADataValuesInterface : public script::Wrappable {
   std::string evergreen_version_;
   std::string android_build_fingerprint_;
   std::string android_os_experience_;
+  std::string android_play_services_version_;
   std::string starboard_version_;
   std::string original_design_manufacturer_;
   std::string device_type_;
diff --git a/cobalt/web/cobalt_ua_data_values_interface.idl b/cobalt/web/cobalt_ua_data_values_interface.idl
index b7ce6341ccd2..d3fbbacfb3a9 100644
--- a/cobalt/web/cobalt_ua_data_values_interface.idl
+++ b/cobalt/web/cobalt_ua_data_values_interface.idl
@@ -34,6 +34,7 @@ interface CobaltUADataValuesInterface {
   readonly attribute DOMString evergreenVersion;
   readonly attribute DOMString androidBuildFingerprint;
   readonly attribute DOMString androidOsExperience;
+  readonly attribute DOMString androidPlayServicesVersion;
   readonly attribute DOMString starboardVersion;
   readonly attribute DOMString originalDesignManufacturer;
   readonly attribute DOMString deviceType;
diff --git a/cobalt/web/navigator_ua_data.cc b/cobalt/web/navigator_ua_data.cc
index 25db46917b65..bbe0344ab226 100644
--- a/cobalt/web/navigator_ua_data.cc
+++ b/cobalt/web/navigator_ua_data.cc
@@ -65,6 +65,8 @@ NavigatorUAData::NavigatorUAData(
       platform_info->android_build_fingerprint());
   all_high_entropy_values_.set_android_os_experience(
       platform_info->android_os_experience());
+  all_high_entropy_values_.set_android_play_services_version(
+      platform_info->android_play_services_version());
   all_high_entropy_values_.set_starboard_version(
       platform_info->starboard_version());
   all_high_entropy_values_.set_original_design_manufacturer(
diff --git a/cobalt/web/testing/mock_user_agent_platform_info.h b/cobalt/web/testing/mock_user_agent_platform_info.h
index fca692f375b0..c8eeb2295448 100644
--- a/cobalt/web/testing/mock_user_agent_platform_info.h
+++ b/cobalt/web/testing/mock_user_agent_platform_info.h
@@ -27,7 +27,7 @@ namespace testing {
 class MockUserAgentPlatformInfo : public web::UserAgentPlatformInfo {
  public:
   MockUserAgentPlatformInfo() {}
-  ~MockUserAgentPlatformInfo() override{};
+  ~MockUserAgentPlatformInfo() override {};
 
   // From: dom:UserAgentPlatformInfo
   //
@@ -81,6 +81,9 @@ class MockUserAgentPlatformInfo : public web::UserAgentPlatformInfo {
   const std::string& android_os_experience() const override {
     return empty_string_;
   }
+  const std::string& android_play_services_version() const override {
+    return empty_string_;
+  }
   const std::string& cobalt_version() const override { return empty_string_; }
   const std::string& cobalt_build_version_number() const override {
     return empty_string_;
diff --git a/cobalt/web/user_agent_platform_info.h b/cobalt/web/user_agent_platform_info.h
index d7b4ad141e31..f523addd888d 100644
--- a/cobalt/web/user_agent_platform_info.h
+++ b/cobalt/web/user_agent_platform_info.h
@@ -49,6 +49,7 @@ class UserAgentPlatformInfo {
   virtual const std::string& evergreen_version() const = 0;
   virtual const std::string& android_build_fingerprint() const = 0;
   virtual const std::string& android_os_experience() const = 0;
+  virtual const std::string& android_play_services_version() const = 0;
 
   virtual const std::string& cobalt_version() const = 0;
   virtual const std::string& cobalt_build_version_number() const = 0;
diff --git a/starboard/android/apk/app/build.gradle b/starboard/android/apk/app/build.gradle
index 55f291a34f13..55ba2b964ea1 100644
--- a/starboard/android/apk/app/build.gradle
+++ b/starboard/android/apk/app/build.gradle
@@ -16,6 +16,8 @@ apply plugin: 'com.android.application'
 
 final DEFAULT_COBALT_TARGET = 'cobalt'
 final String[] SUPPORTED_ABIS = [ 'x86', 'armeabi-v7a', 'arm64-v8a' ]
+final MIN_SUPPORTED_SDK_VERSION = 24
+final LATEST_SUPPORTED_SDK_VERSION = 34
 
 // Parse the NDK_VERSION and CMAKE_VERSION defined in sdk_utils.py
 final SDK_UTILS = project.rootProject.file('../shared/sdk_utils.py')
@@ -45,8 +47,8 @@ println "TARGET: ${cobaltTarget}"
 
 android {
     namespace "dev.cobalt.coat"
-    compileSdkVersion 'android-31'
-    buildToolsVersion '31.0.0'
+    compileSdkVersion "android-${LATEST_SUPPORTED_SDK_VERSION}"
+    buildToolsVersion "${LATEST_SUPPORTED_SDK_VERSION}.0.0"
     ndkVersion NDK_VERSION
 
     compileOptions {
@@ -75,8 +77,9 @@ android {
     }
     defaultConfig {
         applicationId "dev.cobalt.coat"
-        minSdkVersion 24
-        targetSdkVersion 34
+        minSdkVersion MIN_SUPPORTED_SDK_VERSION
+        targetSdkVersion LATEST_SUPPORTED_SDK_VERSION
+        compileSdkVersion LATEST_SUPPORTED_SDK_VERSION
         versionCode 1
         versionName "${buildId}"
         manifestPlaceholders = [
diff --git a/starboard/android/apk/app/src/main/java/dev/cobalt/coat/StarboardBridge.java b/starboard/android/apk/app/src/main/java/dev/cobalt/coat/StarboardBridge.java
index 4c0f61cd37d6..381b18862d12 100644
--- a/starboard/android/apk/app/src/main/java/dev/cobalt/coat/StarboardBridge.java
+++ b/starboard/android/apk/app/src/main/java/dev/cobalt/coat/StarboardBridge.java
@@ -111,6 +111,7 @@ public void run() {
   private final HashMap<String, CobaltService> cobaltServices = new HashMap<>();
   private final HashMap<String, String> crashContext = new HashMap<>();
 
+  private static final String GOOGLE_PLAY_SERVICES_PACKAGE = "com.google.android.gms";
   private static final String AMATI_EXPERIENCE_FEATURE =
       "com.google.android.feature.AMATI_EXPERIENCE";
   private final boolean isAmatiDevice;
@@ -620,7 +621,15 @@ protected String getUserAgentAuxField() {
     sb.append('/');
 
     try {
-      sb.append(appContext.getPackageManager().getPackageInfo(packageName, 0).versionName);
+      if (android.os.Build.VERSION.SDK_INT < 33) {
+        sb.append(appContext.getPackageManager().getPackageInfo(packageName, 0).versionName);
+      } else {
+        sb.append(
+            appContext
+                .getPackageManager()
+                .getPackageInfo(packageName, PackageManager.PackageInfoFlags.of(0))
+                .versionName);
+      }
     } catch (PackageManager.NameNotFoundException ex) {
       // Should never happen
       Log.e(TAG, "Can't find our own package", ex);
@@ -799,4 +808,30 @@ protected boolean getIsAmatiDevice() {
   protected String getBuildFingerprint() {
     return Build.FINGERPRINT;
   }
+
+  @SuppressWarnings("unused")
+  @UsedByNative
+  protected long getPlayServicesVersion() {
+    try {
+      if (android.os.Build.VERSION.SDK_INT < 28) {
+        return appContext
+            .getPackageManager()
+            .getPackageInfo(GOOGLE_PLAY_SERVICES_PACKAGE, 0)
+            .versionCode;
+      } else if (android.os.Build.VERSION.SDK_INT < 33) {
+        return appContext
+            .getPackageManager()
+            .getPackageInfo(GOOGLE_PLAY_SERVICES_PACKAGE, 0)
+            .getLongVersionCode();
+      } else {
+        return appContext
+            .getPackageManager()
+            .getPackageInfo(GOOGLE_PLAY_SERVICES_PACKAGE, PackageManager.PackageInfoFlags.of(0))
+            .getLongVersionCode();
+      }
+    } catch (Exception e) {
+      Log.w(TAG, "Unable to query Google Play Services package version", e);
+      return 0;
+    }
+  }
 }
diff --git a/starboard/android/shared/platform_info.cc b/starboard/android/shared/platform_info.cc
index 39d036bf63b6..967fe146aba0 100644
--- a/starboard/android/shared/platform_info.cc
+++ b/starboard/android/shared/platform_info.cc
@@ -50,12 +50,20 @@ const char* GetOsExperience() {
   return "Watson";
 }
 
+int64_t GetCoreServicesVersion() {
+  return JniEnvExt::Get()->CallStarboardLongMethodOrAbort(
+      "getPlayServicesVersion", "()J");
+}
+
+// clang-format off
 const CobaltExtensionPlatformInfoApi kPlatformInfoApi = {
     kCobaltExtensionPlatformInfoName,
-    1,
+    2,
     &GetFirmwareVersionDetails,
     &GetOsExperience,
+    &GetCoreServicesVersion,
 };
+// clang-format on
 
 }  // namespace
 
diff --git a/starboard/extension/extension_test.cc b/starboard/extension/extension_test.cc
index 539c38919414..16c7c97baadc 100644
--- a/starboard/extension/extension_test.cc
+++ b/starboard/extension/extension_test.cc
@@ -435,9 +435,10 @@ TEST(ExtensionTest, PlatformInfo) {
   }
 
   EXPECT_STREQ(extension_api->name, kExtensionName);
-  EXPECT_EQ(extension_api->version, 1u);
+  EXPECT_EQ(extension_api->version, 2u);
   EXPECT_NE(extension_api->GetFirmwareVersionDetails, nullptr);
   EXPECT_NE(extension_api->GetOsExperience, nullptr);
+  EXPECT_NE(extension_api->GetCoreServicesVersion, nullptr);
 
   const ExtensionApi* second_extension_api =
       static_cast<const ExtensionApi*>(SbSystemGetExtension(kExtensionName));
diff --git a/starboard/extension/platform_info.h b/starboard/extension/platform_info.h
index e670044f7bbb..2cda3f7483f4 100644
--- a/starboard/extension/platform_info.h
+++ b/starboard/extension/platform_info.h
@@ -41,6 +41,10 @@ typedef struct CobaltExtensionPlatformInfoApi {
 
   // Returns the OS experience. (e.g. Amati or Watson on an Android device).
   const char* (*GetOsExperience)();
+
+  // Returns the Core Services version (e.g. the Google Play Services package
+  // version on an Android device).
+  int64_t (*GetCoreServicesVersion)();
 } CobaltExtensionPlatformInfoApi;
 
 #ifdef __cplusplus