diff --git a/res/values/strings.xml b/res/values/strings.xml
index a8c6f0d4cdc..c66c5b984eb 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -2455,7 +2455,7 @@
     <!-- Display settings screen, peak refresh rate settings title [CHAR LIMIT=30] -->
     <string name="peak_refresh_rate_title">Smooth Display</string>
     <!-- Display settings screen, peak refresh rate settings summary [CHAR LIMIT=NONE] -->
-    <string name="peak_refresh_rate_summary">Automatically raises the refresh rate from 60 to 90 Hz for some content. Increases battery usage.</string>
+    <string name="peak_refresh_rate_summary">Automatically raises the refresh rate from 60 to <xliff:g name="refresh_rate" example="120">%1$s</xliff:g> Hz for some content. Increases battery usage.</string>
     <!-- Display developer settings: Force to the highest refresh rate [CHAR LIMIT=NONE] -->
     <string name="force_high_refresh_rate_toggle">Force peak refresh rate</string>
     <!-- Display developer settings: Force to the highest refresh rate description [CHAR LIMIT=NONE]-->
diff --git a/src/com/android/settings/display/PeakRefreshRatePreferenceController.java b/src/com/android/settings/display/PeakRefreshRatePreferenceController.java
index 27ba340c6ba..31004d4bbb0 100644
--- a/src/com/android/settings/display/PeakRefreshRatePreferenceController.java
+++ b/src/com/android/settings/display/PeakRefreshRatePreferenceController.java
@@ -88,7 +88,12 @@ public class PeakRefreshRatePreferenceController extends TogglePreferenceControl
     public void displayPreference(PreferenceScreen screen) {
         super.displayPreference(screen);
 
+        int defaultPeakRefreshRate = mContext.getResources().getInteger(
+                com.android.internal.R.integer.config_defaultPeakRefreshRate);
+
         mPreference = screen.findPreference(getPreferenceKey());
+        mPreference.setSummary(mContext.getString(
+                R.string.peak_refresh_rate_summary, defaultPeakRefreshRate));
     }
 
     @Override