diff --git a/README.md b/README.md
index def36ad6..848b4dd4 100644
--- a/README.md
+++ b/README.md
@@ -131,3 +131,7 @@ However, they can be substituted with Xamarin.Forms controls. Below shows how th
 ## Tip and Tech
 
 - [Localization](doc/guide/Localization.md) : This guide describes how to support multiple languages. 
+- Recommendations for `ItemHeight` of `ListView` or `CircleListView`
+  - According to the [Galaxy Watch's UI Component guideline](https://developer.samsung.com/galaxy-watch-design/ui-components/list.html), we recommend that the height of each item (including headers or footers) can be used to occupy at least one third of the screen (at least 115~120). The default height for a list item is 130 pixel.
+<img src="https://developer.samsung.com/sd2_images/gear/design/UI_11.3.3.png" width=800/>
+
diff --git a/test/WearableUIGallery/WearableUIGallery/TC/TCCheckCell.xaml b/test/WearableUIGallery/WearableUIGallery/TC/TCCheckCell.xaml
index 8f440e05..4d4fbaba 100644
--- a/test/WearableUIGallery/WearableUIGallery/TC/TCCheckCell.xaml
+++ b/test/WearableUIGallery/WearableUIGallery/TC/TCCheckCell.xaml
@@ -17,7 +17,7 @@
                 AbsoluteLayout.LayoutFlags="PositionProportional">
                 <ListView.ItemTemplate>
                     <DataTemplate>
-                        <w:CheckCell Text="{Binding Text}" On="{Binding IsSelected}" OnColor="Violet" />
+                        <w:CheckCell Text="{Binding Text}" On="{Binding IsSelected}" />
                     </DataTemplate>
                 </ListView.ItemTemplate>
                 <ListView.Header>
diff --git a/test/WearableUIGallery/WearableUIGallery/TC/TCCircleListView.xaml b/test/WearableUIGallery/WearableUIGallery/TC/TCCircleListView.xaml
index 295eff5c..0f6d4935 100644
--- a/test/WearableUIGallery/WearableUIGallery/TC/TCCircleListView.xaml
+++ b/test/WearableUIGallery/WearableUIGallery/TC/TCCircleListView.xaml
@@ -43,6 +43,7 @@
             <w:CircleListView.HeaderTemplate>
                 <DataTemplate>
                     <Label
+                        HeightRequest="120"
                         FontAttributes="Bold"
                         FontSize="Large"
                         HorizontalTextAlignment="Center"
@@ -53,6 +54,7 @@
             <w:CircleListView.FooterTemplate>
                 <DataTemplate>
                     <Label
+                        HeightRequest="120"
                         FontAttributes="Bold"
                         FontSize="Large"
                         HorizontalTextAlignment="Center"