diff --git a/addons/web/static/src/legacy/js/services/config.js b/addons/web/static/src/legacy/js/services/config.js
index dde878f102d..4a428103de7 100644
--- a/addons/web/static/src/legacy/js/services/config.js
+++ b/addons/web/static/src/legacy/js/services/config.js
@@ -42,6 +42,20 @@ var config = {
          * @type Number
          */
         size_class: null,
+        /**
+         * Mobile OS (Android) device detection using userAgent.
+         * This flag doesn't depend on the size/resolution of the screen.
+         *
+         * @return Boolean
+         */
+        isAndroid: isAndroid,
+        /**
+         * Mobile OS (iOS) device detection using userAgent.
+         * This flag doesn't depend on the size/resolution of the screen.
+         *
+         * @return Boolean
+         */
+        isIOS: isIOS,
         /**
          * A frequent use case is to have a different render in 'mobile' mode,
          * meaning when the screen is small.  This flag (boolean) is true when