Which is better, iPhone 4S or iPhone 4?

Is it worth getting the iPhone 4S? Or should I simply just get the iPhone?

I'm going to be honest here.
I got the iPhone 4S for christmas, my mom has the iPhone 4.
The two phones are more or less EXACTLY the same, other than the personal assistant, Siri.
Siri isn't even that good, she's only in BETA mode therefore has TONS of bugs.
As a previous answer said, there's a slight different in the speed of the internet, but it's nothing major, infact it's more or less unnoticeable.
The camera on the iPhone 4S is supposed to be better, but my mom and I tested them out and again, there wasn't much difference.
I wish I'd have gotten the iPhone 4 and not wasted my parents money, the iPhone 4S was a good $50-$60 extra.
It's really up to you though.

The difference between iphone 4 n 4s is very little.
1. 5mp of iphone 4 while 4s has 8 mp.
2. Iphone 4s have a5 chip n dual core processor while iphone 4 has a4 chip n a core processor which very increase the speed of mobile.
3. Siri in 4s.
overall there's little different. You should get 4s because after 2 or 3 years iphone 4 games n apps will close for making.while 4s has a5 chip then 4s games will close for making after 1 year then 4.
take 4s.

I have an iphone 4 and i think it's really good i spke to the people in apple and they truthfully told me the only difference between 4 and 4S is more memory and faster internet, personally i would get the iphoen 4 because it is much cheaper than the 4S aswell.