The process may change depending on your specific handset, but you can always find this option in the settings. It’s usually under the Display section. From there you can change the actual font, as well as the font size.For instance, some Samsung Android devices let you change the font style. Samsung has pre-installed a few extra fonts besides the default, but you can get more online through the Google Play Store.
Putting on a new font requires only a quick trip to Settings > Display > Font Style. Just tap the name of the font that you want, and confirm that you want to set it as system font. Font replacement is instantaneous. No need for rebooting. The selected font will be displayed throughout your device’s interface such as the time on the status bar, system menus, and even on your text messages.
Is your manufacturer not opening the doors you need opened? Don’t you worry. One non-root way to change fonts on Android is through custom launcher apps. Some custom launchers integrate the font-changing function, while most others will need you to install themes.
One reasonably well known custom launcher that provides a way to change fonts is GO Launcher. To change font styles in GO Launcher, do the following:
Copy your TTF font files to the phone.
Open GO Launcher.
Find the Tools app and open it.
Tap on the Preferences icon.
Scroll down to Personalization and select it.
Tap on Font.
Tap Select Font and tap on the font that you want to use.