Drag the slider to the right to increase the text size.Open Settings and tap Display & Brightness.How to make font size larger on iPhone using Display & Brightness Change the font size only of individual apps in iOS 15.Adjust the text size on iPhone with Accessibility settings.How to make font size larger on iPhone using Display & Brightness.So let us get straight in and see how to do that. Once you enlarge the font on your iPhone, it becomes easier to use your device.
In iOS 15, you can even change the font size just for individual apps like email, messages, Home screen, WhatsApp, etc. If you have difficulty seeing small fonts, iPhone lets you easily increase the overall font size.