Earlier quoted context omitted.
To be fair the second sentence in the short top description is about staying connected with calls and messages . I don't think many people's first assumption (without any other context/knowing more) would be that that means having them read out.
The full quote is: > Stay connected with hands-free calls and messages and listen to your favourite tracks through built-in speakers. Which makes it seem pretty clear they're talking about stuff you can do because of the speakers. Then later: > No more stopping to answer your phone. Also, make calls and send messages on WhatsApp, Messenger and SMS, completely hands-free – simply by using your voice.
That's true. But it's not excluding display stuff.
It's along the lines of some product having multiple features, and some marketing point only talking about the advantages of the first feature. People would expect further marketing points to address the other features, and/or not even realise they'd not seen the other ("assumed to be present") features mentioned later on.