It already exists in the form of refreshable braille displays. It’s super helpful for people who are Deafblind, want to be discrete with information, or simply like braille more than speech. The number of braille cells available impacts the speed you can read at and the more portable and affordable units are not comfortable to read off of for long periods of time.

I'd rather forget my JEANS than my earbuds.

And I don't read braille.

I have my screen reader speaking rate set to around 80-90% usually, so the vast majority of people around me generally can't understand it or parse the voice at that speed. It's harder to hide amongst other blind folk who are used to the speed, though, haha. I will always have earbuds with me so I can more easily hear and manipulate my phone in loud environments, and I don't want to lug a braille display around with me everywhere I go.

It's a good question :) and it is also a legitimate problem.

If you don't have access to headphones, say ...your Bluetooth ones are out of juice, you have to listen to your phone through it's speaker which can be awkward. My speech rate is sufficiently high that I don't worry about it much and with low volume and the speaker almost touching my ear, I can do things one-handed reasonably well.

The responses here are also valid though. Reading braille on a smartphone is tricky given the touch screen is just that ...a touch screen. You'd essentially have to have the entire screen be a braille surface, which would be clunky, expensive and you'd require quite a large phone to get anything done.

There are devices you can connect via Bluetooth that output your phone's screen to braille though, they are called braille displays. This is the way that's been devised to do this, although it does require you to carry two devices around which can be annoying.

Yes it already exist I use it extensively without it I couldn’t do what I do. I read very thick materials and a lot of it too so at some point if it’s not casual browsing I will use it.

Wow I guess I am the only one here thus far but there’s a good handful of us.

No because I don’t read braille.

Braille is hard to use unless you’re sitting down and able to lay whatever you’re reading on a flat surface. That’s almost never how I use my phone. If I really want to use Braille in a situation like that, I use my iPad or Laptop with a Braille Display.

Common misconception is that every blind person can ready braille when i believe its very little.

More than half of the Blind are illiterate and cannot read braille. So having a display like that is a great idea, as long as everyone cab read, which they cannot.

Personally, no. It would be too slow and bulky, and I don't want to carry around more than I need to.