For any of you struggling to make data entries in your android smart phones due to the small keyboard keys, then the Big Button Keyboard APP may be for you. I myself have issues with the small keys. Go to the Google Play Store and download the Big Button Keyboard APP and follow the installation instructions.
You will have to get use to the Qwerty Style layout of key placement, but once you do, it should be much easier to enter text with the larger keys.
Link: Big Button Keyboard App