IPhone 4s battery life? Good or bad?

I want to buy the iphone 4s, because my current android phone dies very quickly. I know that smartphones never have an excellent battery life. But I would just like to know what the iphone battery life is like. How long does it last?

i usually text throughout the day and i use facebook and mail and other apps on my current phone. So if you have any idea how long an iphone battery might last for me throughout a day, or how it performs in general, let me know!

If you are texting constantly then that means the screen will always be on… So of course the battery will not last all day no matter which phone you use. That being said I think 4S has a very good battery.