How long is iphone 4s battery life?

I'm getting an iphone 4s today I'm just wondering how long the battery time lasts, I will be using it for games and apps like twitter instagram facebook and whatsapp maybe facetime aswell thanks.

Not too long

It depends how many programs you have and which. For example, some programs run even when they're not open. Those as well as programs you don't close make the battery die faster. It also depends how often you'll be using your phone, when left unused it obviously doesn't waste much battery. On any account it's best you charge your phone daily.

12 hours depending on what apps you use everyday.

If you play games it be 2-4hours

Facebook nonstop 8hours

Turning your 3G and blue tooth on 2hours

It depends on what do you do with your iPhone