Android: Supporting smart phone only

My application is live on google play. I want to make it compatible with smart phone only.For that I have done like this...

 <uses-sdk
    android:minSdkVersion="4"/>
 <supports-screens
    android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:xlargeScreens="false" />

And my problem is market does not filter for tablet (mdpi tablet like Samsung tab1).one thing is that some phone like WVGA800* (480x800)(mdpi),WVGA800** (480x800)(ldpi) in large screen and some tablet also comes in this range.So i want to allow phones not tablet then what should be the solution???

I found some help from here http://developer.android.com/guide/topics/manifest/supports-screens-element.html

 <uses-sdk
    android:minSdkVersion="4"
    android:targetSdkVersion="16" />
 <supports-screens
    android:largeScreens="true"
    android:largestWidthLimitDp="320"
    android:normalScreens="true"
    android:smallScreens="true"
    android:xlargeScreens="false" />

Will it work on market??..I am asking with this kind of solution if anybody is having experience of this.My problem is i can not test by uploading new version of application.please help me..

Alternative solution will do.

Thanks in advance.