WatchKit: Can I use text-to-speech?

Question

I am creating an application for the new Apple Watch. I would like to use text-to-speech functionality. Right now, I'm using the old code (iPhone):

AVSpeechSynthesizer *synthesizer = [[AVSpeechSynthesizer alloc] init];
    speechPaused = YES;
    AVSpeechUtterance *utterance = [[AVSpeechUtterance alloc] initWithString:@""];
    utterance.rate = 0.15;
    utterance.voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"it_IT"];
    [synthesizer speakUtterance:utterance];

In my simulator it works correctly for the watch.

I am confused, because I've read on several forums that it is not possible to use text-to-speech. I'd like to know if my code works in a real Apple Watch.

Thank you.

Answer 1

According to the documentation at developer.apple.com the AVSpeechSynthesizer API is available for watchOS 2+.

In addition, as of June 9, 2017, I can verify that I can play an AVSpeechUtterance on my wrist on an actual device, a Series 0 Apple Watch, 38mm, which can play from the built-in speaker or through bluetooth headphones (BeatsX).

Answer 2

This is not possible. In general, WatchKit is pretty limited right now. Third-party developers can currently not play audio from Apple Watch (Source: Apple employee via developer forum).

See here what's possible.