If you’ve tried adjusting text size and contrast, but still have trouble reading things on your phone, you can have the device speak the words out loud. This can be really helpful for people who struggle to read a screen, but it’s also great for those who want to save their eyes from strain.
On an Android device, return to Settings > Accessibility and enable either Select-to-Speak (a mode where you tap on-screen text to hear it aloud) or TalkBack (the phone automatically reads out all on-screen text and menu options). Once you’ve chosen one of those, tap the Text-to-speech output option to set the speech rate, pitch, and language.
Feature - IOS - Settings - > - General
To enable a similar feature on iOS, go to Settings > General > Accessibility > VoiceOver and turn the toggle switch to On. Now your iPhone or iPad will automatically read out any text that appears on screen. From the same menu, you can adjust the reading speed, as well as other options, like whether the device will read notifications aloud.