diff --git a/library/ui-strings/src/main/res/values/strings.xml b/library/ui-strings/src/main/res/values/strings.xml
index 8cf89196e1..df0e10627a 100644
--- a/library/ui-strings/src/main/res/values/strings.xml
+++ b/library/ui-strings/src/main/res/values/strings.xml
@@ -3225,12 +3225,19 @@
     <string name="device_manager_other_sessions_view_all">View All (%1$d)</string>
     <string name="device_manager_other_sessions_description_verified">Verified · Last activity %1$s</string>
     <string name="device_manager_other_sessions_description_unverified">Unverified · Last activity %1$s</string>
-    <string name="device_manager_other_sessions_description_inactive">Inactive for %1$d+ days (%2$s)</string>
+    <!--  Example: Inactive for 90+ days (Dec 25, 2021) -->
+    <plurals name="device_manager_other_sessions_description_inactive">
+        <item quantity="one">Inactive for %1$d+ day (%2$s)</item>
+        <item quantity="other">Inactive for %1$d+ days (%2$s)</item>
+    </plurals>
     <string name="device_manager_header_section_security_recommendations_title">Security recommendations</string>
     <string name="device_manager_header_section_security_recommendations_description">Improve your account security by following these recommendations.</string>
     <string name="device_manager_unverified_sessions_title">Unverified sessions</string>
     <string name="device_manager_unverified_sessions_description">Verify or sign out from unverified sessions.</string>
     <string name="device_manager_inactive_sessions_title">Inactive sessions</string>
-    <string name="device_manager_inactive_sessions_description">Consider signing out from old sessions (%1$d days or more) that you don’t use anymore.</string>
+    <plurals name="device_manager_inactive_sessions_description">
+        <item quantity="one">Consider signing out from old sessions (%1$d day or more) that you don’t use anymore.</item>
+        <item quantity="other">Consider signing out from old sessions (%1$d days or more) that you don’t use anymore.</item>
+    </plurals>
 
 </resources>
diff --git a/vector/src/main/java/im/vector/app/features/settings/devices/v2/VectorSettingsDevicesFragment.kt b/vector/src/main/java/im/vector/app/features/settings/devices/v2/VectorSettingsDevicesFragment.kt
index ef42a6e5a7..1850f2d847 100644
--- a/vector/src/main/java/im/vector/app/features/settings/devices/v2/VectorSettingsDevicesFragment.kt
+++ b/vector/src/main/java/im/vector/app/features/settings/devices/v2/VectorSettingsDevicesFragment.kt
@@ -155,7 +155,11 @@ class VectorSettingsDevicesFragment :
             views.deviceListUnverifiedSessionsRecommendation.setCount(unverifiedSessionsCount)
             views.deviceListInactiveSessionsRecommendation.setCount(inactiveSessionsCount)
             views.deviceListInactiveSessionsRecommendation.setDescription(
-                    getString(R.string.device_manager_inactive_sessions_description, SESSION_IS_MARKED_AS_INACTIVE_AFTER_DAYS)
+                    resources.getQuantityString(
+                            R.plurals.device_manager_inactive_sessions_description,
+                            SESSION_IS_MARKED_AS_INACTIVE_AFTER_DAYS,
+                            SESSION_IS_MARKED_AS_INACTIVE_AFTER_DAYS
+                    )
             )
         }
     }
diff --git a/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/OtherSessionsController.kt b/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/OtherSessionsController.kt
index 04427d4cb6..817878cf0f 100644
--- a/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/OtherSessionsController.kt
+++ b/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/OtherSessionsController.kt
@@ -45,8 +45,9 @@ class OtherSessionsController @Inject constructor(
             data.take(NUMBER_OF_OTHER_DEVICES_TO_RENDER).forEach { device ->
                 val formattedLastActivityDate = host.dateFormatter.format(device.deviceInfo.lastSeenTs, DateFormatKind.DEFAULT_DATE_AND_TIME)
                 val description = if (device.isInactive) {
-                    stringProvider.getString(
-                            R.string.device_manager_other_sessions_description_inactive,
+                    stringProvider.getQuantityString(
+                            R.plurals.device_manager_other_sessions_description_inactive,
+                            SESSION_IS_MARKED_AS_INACTIVE_AFTER_DAYS,
                             SESSION_IS_MARKED_AS_INACTIVE_AFTER_DAYS,
                             formattedLastActivityDate
                     )
diff --git a/vector/src/main/res/layout/fragment_settings_devices.xml b/vector/src/main/res/layout/fragment_settings_devices.xml
index 220e49f28f..6710f345ce 100644
--- a/vector/src/main/res/layout/fragment_settings_devices.xml
+++ b/vector/src/main/res/layout/fragment_settings_devices.xml
@@ -39,7 +39,7 @@
             android:layout_marginHorizontal="16dp"
             android:layout_marginVertical="16dp"
             app:recommendationTitle="@string/device_manager_inactive_sessions_title"
-            app:recommendationDescription="@string/device_manager_inactive_sessions_description"
+            app:recommendationDescription="@plurals/device_manager_inactive_sessions_description"
             app:recommendationImageResource="@drawable/ic_inactive_sessions"
             app:recommendationImageBackgroundTint="?vctr_system"
             app:layout_constraintEnd_toEndOf="parent"