When comparing Siri vs S-voice, the Slant community recommends Siri for most people. In the question“What is the best intelligent personal assistant software?” Siri is ranked 3rd while S-voice is ranked 13th. The most important reason people chose Siri is:
Instead of taking every word literally notes such as "comma", "question mark", etc are taken as instructions.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Good at composing messages using voice
Instead of taking every word literally notes such as "comma", "question mark", etc are taken as instructions.
Pro Identifies unknown callers from emails
If an unknown number is calling you, Siri will try to identify the caller by attempting to match the number with people you've had interactions with over the email.
Pro You can talk with Siri
Pro Can look up information on the web
Pro You can manage your tasks and calendar
Pro Can read news aloud to you
You can ask S-voice to read the news for you.
Cons
Con News suggestions aren't personalized
Instead of showing news suggestions tailored specifically to you based on things like search history, Siri shows only news that are trending in your area.
Con Wake-up command rarely works
While it's possible to have a custom wake up command be set for S-voice, it more often than not does not recognize the command.