This is a good example of speech to text Samsung S8 plus

[Android Central Question]

Without correcting I am speaking to text Samsung S8 plus sucks but Hall My S6 was 20 times better at least What a waste of effort to upgrade waste of money. I hope there is a fix update or something if I get to spend 2 years with this phone I think I will destroy it

 

[Rukbat]

That's Samsung speech-to-text. Even Speechnotes - Speech To Text seems to be a bit better.