You can change the font you have your Smartphone and make larger or smaller letters of your choice. If you do not like how they are now just have to enter the options Settings, Devices, Fonts find the options:
- Font type that lets you choose from several different types of letters that are installed on your phone.
- Font size where you can select the size you prefer from "tiny" to "huge".
If you want you can download and install new fonts from Google Play Sources.