Make passwords visible
This setting controls whether passwords typed into your Android device should be visible on screen, or hidden by replacing the letters with dots.
Given the relative difficulty of typing letters accurately on a small on-screen keyboard, it can be helpful to get visual feedback on-screen that you have typed all the letters of your password correctly.
When this setting is off, the password is obscured by dots, and only the most recent key pressed is visible for a short time after it has been pressed. When this setting is on, the entire password will be visible.
This setting affects password entry in general on your Android device, including within most apps that require a password.