I recently upgraded from the 4 to the 5, and Siri seems totally useless so far. In most cases, the old voice control was actually better. I used to be able to say "Play album ____" over the bluetooth in my car, and it would work, now when I do that, Siri just says she's having a problem and does nothing. Nice.
Oh yeah, and she still thinks I'm in New York, Texas, (not NY, NY) when I ask about the weather.
Tells you weather , find the nearest restaurent etc ... Dont find them useful ? Ask stupid questions and entertain ypurself ^^ go to google and search some funny questions to ask , i saw some funny youtube videos
No, Siri will only use battery while you are using it. Once you hold the home button then it will start recording and sending data over the network which would use data. But while dormant all it does is wait for the home button to be held down which the system does anyways (enabled or not.)
Also, I find it much, much quicker for entering Reminders (with dates) or Calendar entries. Doing those manually takes popping in and out of date screens and spinning the date wheel, both of which take more time for me than just speaking the date.
I like being able to keep my phone in my pocket and telling Siri to take a note, remind me to do something, or even "Shuffle the newest Avett Brothers," and she does it. It's nice being able to keep my hands free by using the earpods with the mic while walking around.
After having the 4S for a year, the only things I do with siri are:
1) Set up reminders - this is so much more convenient than typing it in
2) Set alarms - very convenient as well
3) It's not technically siri, but I use the microphone button to text sometimes.
I would like to use her to text in the car, but it can get a bit bothersome, as if your message gets one word wrong, you have to re-do, then you have to waste time asking her to read it back before you send it. Also sometimes she doesn't recognize my contacts or gives me the wrong one.
Other than that, siri has been way over-hyped and I feel that apple shouldn't have had siri as its main selling point for the 4S, especially since it's still "in beta." Apple is getting a bit lazy with their beta releases as if they are real releases.
I went from the 4 to the 5, and find it useful. I don't use it all the time, but the 4 - 5 times I have it was very helpful. Was able to answer and writer a text while driving, added an iCal event, to make a couple calls when driving, and lookup some info.