diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 1dbdca832..bf1c2d936 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -71,9 +71,6 @@
     <string name="pref_title_general_autoreconnect">Reconnect automatically</string>
     <string name="pref_title_audio_player">Preferred Audioplayer</string>
     <string name="pref_default">Default</string>
-    <string name="pref_header_charts">Charts Settings</string>
-    <string name="pref_title_charts_swipe">Enable left/right swipe in the charts activity</string>
-    <string name="pref_title_charts_average">Show averages in the charts</string>
     <string name="pref_header_datetime">Date and Time</string>
     <string name="pref_title_datetime_syctimeonconnect">Sync time</string>
     <string name="pref_summary_datetime_syctimeonconnect">Sync time to Gadgetbridge device when connecting, and when time or time zone changes on Android device</string>
@@ -509,9 +506,20 @@
     <string name="activity_prefs_gender">Gender</string>
     <string name="activity_prefs_height_cm">Height in cm</string>
     <string name="activity_prefs_weight_kg">Weight in kg</string>
+
+    <!-- Settings - Charts Preferences -->
+    <string name="pref_header_charts">Charts Settings</string>
+    <string name="pref_title_charts_swipe">Enable left/right swipe in the charts activity</string>
+    <string name="pref_title_charts_average">Show averages in the charts</string>
     <string name="activity_prefs_charts">Chart settings</string>
     <string name="activity_prefs_chart_max_heart_rate">Max heart rate</string>
     <string name="activity_prefs_chart_min_heart_rate">Min heart rate</string>
+    <string name="pref_charts_range">Charts Range</string>
+    <string name="pref_charts_range_on">Charts range is set to a Month</string>
+    <string name="pref_charts_range_off">Charts range is set to a Week</string>
+    <string name="weekstepschart_steps_a_month">Steps per month</string>
+    <string name="weeksleepchart_sleep_a_month">Sleep per month</string>
+
     <string name="authenticating">Authenticating</string>
     <string name="authentication_required">Authentication required</string>
     <string name="appwidget_text">Zzz</string>
diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
index a07f53dcc..10e0b6d29 100644
--- a/app/src/main/res/xml/preferences.xml
+++ b/app/src/main/res/xml/preferences.xml
@@ -157,8 +157,8 @@
                 android:maxLength="3"
                 android:title="@string/activity_prefs_activetime_minutes" />
         </PreferenceScreen>
- </PreferenceCategory>
-<PreferenceCategory
+    </PreferenceCategory>
+    <PreferenceCategory
         android:title="@string/pref_header_charts">
         <PreferenceScreen
             android:key="pref_charts"
@@ -189,7 +189,15 @@
             android:key="charts_show_average"
             android:title="@string/pref_title_charts_average" />
 
+        <CheckBoxPreference
+            android:layout="@layout/preference_checkbox"
+            android:defaultValue="false"
+            android:key="charts_range"
+            android:summaryOff="@string/pref_charts_range_off"
+            android:summaryOn="@string/pref_charts_range_on"
+            android:title="@string/pref_charts_range" />
     </PreferenceCategory>
+
     <PreferenceCategory
         android:key="pref_key_datetime"
         android:title="@string/pref_header_datetime">