Whatsapp for Samsung can be installed not only on the new Galaxy Tab S, 4 and Tab 3, but also on the oldest and most recent version of Samsung Smartphones, like the Samsung Galaxy S5, S4 and the new Galaxy Note 4 released few months ago by the famous Korean company. You can perform the same operation from your PC and then copy the downloaded file to the tablet and proceed with the installation as explained before. If for any reason, clicking on the downloaded link, the installation process doesn’t start, then use a file manager on your tablet to move the Apk file to the “Downloads folder” and, then, restart the WhatsApp installation process. When the file is downloaded, click on it and proceed with the installation process. From your Samsung Tab, open your favorite browser, then download this specific Apk version of WhatsApp from this link.
If you own a Samsung Tablet go to Settings-> General-> Security and check the option: ” Unknown Sources “.
