You can use Google text-to-speech on an Android phone to help you hear text instead of reading it, and catch grammatical oddities in your own writing.
Older adults can make smartphones easier to read and use by increasing font size, enabling high-contrast text, or using screen magnifiers. Features like Assistive Touch, reading mode, voice assistants ...
You can change the font size on your Android phone or tablet by heading to your device's Accessibility menu.