I have a slight problem marrying up the keyboard and my Samsung Tab S, 8.4", the exact model you now use. It takes a few extra seconds to go into the Tab S and look for the keyboard. Once it stores that information about the keyboard and also about the Tab S keyboard, then the coupling time is fast and I'm on my way to doing what I needed to do and why I purchased this product. So, yes it does work on the TAB S once the Tab S stores that information required for the external keyboard.