diff --git a/packages/SettingsLib/res/values/dimens.xml b/packages/SettingsLib/res/values/dimens.xml
index 120df76218b37..53bcce32b5634 100644
--- a/packages/SettingsLib/res/values/dimens.xml
+++ b/packages/SettingsLib/res/values/dimens.xml
@@ -109,4 +109,10 @@
 
     <dimen name="avatar_picker_icon_inset">25dp</dimen>
 
+    <!-- Minimum increment between density scales. -->
+    <fraction name="display_density_min_scale_interval">9%</fraction>
+    <!-- Maximum density scale. The actual scale used depends on the device. -->
+    <fraction name="display_density_max_scale">150%</fraction>
+    <!-- Minimum density scale. This is available on all devices. -->
+    <fraction name="display_density_min_scale">85%</fraction>
 </resources>
diff --git a/packages/SettingsLib/src/com/android/settingslib/display/DisplayDensityUtils.java b/packages/SettingsLib/src/com/android/settingslib/display/DisplayDensityUtils.java
index a38091debb645..8b34cf3d624ff 100644
--- a/packages/SettingsLib/src/com/android/settingslib/display/DisplayDensityUtils.java
+++ b/packages/SettingsLib/src/com/android/settingslib/display/DisplayDensityUtils.java
@@ -38,15 +38,6 @@ import java.util.Arrays;
 public class DisplayDensityUtils {
     private static final String LOG_TAG = "DisplayDensityUtils";
 
-    /** Minimum increment between density scales. */
-    private static final float MIN_SCALE_INTERVAL = 0.09f;
-
-    /** Minimum density scale. This is available on all devices. */
-    private static final float MIN_SCALE = 0.85f;
-
-    /** Maximum density scale. The actual scale used depends on the device. */
-    private static final float MAX_SCALE = 1.50f;
-
     /** Summary used for "default" scale. */
     public static final int SUMMARY_DEFAULT = R.string.screen_zoom_summary_default;
 
@@ -105,11 +96,16 @@ public class DisplayDensityUtils {
         // Compute number of "larger" and "smaller" scales for this display.
         final int minDimensionPx = Math.min(metrics.widthPixels, metrics.heightPixels);
         final int maxDensity = DisplayMetrics.DENSITY_MEDIUM * minDimensionPx / MIN_DIMENSION_DP;
-        final float maxScale = Math.min(MAX_SCALE, maxDensity / (float) defaultDensity);
-        final float minScale = MIN_SCALE;
-        final int numLarger = (int) MathUtils.constrain((maxScale - 1) / MIN_SCALE_INTERVAL,
+        final float maxScaleDimen = context.getResources().getFraction(
+                R.fraction.display_density_max_scale, 1, 1);
+        final float maxScale = Math.min(maxScaleDimen, maxDensity / (float) defaultDensity);
+        final float minScale = context.getResources().getFraction(
+                R.fraction.display_density_min_scale, 1, 1);
+        final float minScaleInterval = context.getResources().getFraction(
+                R.fraction.display_density_min_scale_interval, 1, 1);
+        final int numLarger = (int) MathUtils.constrain((maxScale - 1) / minScaleInterval,
                 0, SUMMARIES_LARGER.length);
-        final int numSmaller = (int) MathUtils.constrain((1 - minScale) / MIN_SCALE_INTERVAL,
+        final int numSmaller = (int) MathUtils.constrain((1 - minScale) / minScaleInterval,
                 0, SUMMARIES_SMALLER.length);
 
         String[] entries = new String[1 + numSmaller + numLarger];