Does this lock display random digits to add to the code so that it is harder to guess the code by looking at fingerprints on the touchscreen?

The Schlage Encode's digits are always in the same position and do not change. However, our keypad is fingerprint resistant, just so long as your hands are reasonably clean. We also recommend changing your user codes once or twice a year to avoid wearing down the same 4 digits. If you have any other questions or require any further assistance, please reach out to Customer Care at 888-805-9837.