Iphone 4 and 4S - battery life for calling?

So I'm considering getting an Iphone either 4 or 4S and was wanting people's opinions. I'm mostly concerned about the battery life because I call people a fair bit.
I will have the cellular data and push notifications etc turned off, as well as brightness turned down. How long would the phone last then if I was just doing mild texting and only calling a few people for generally under 10mins each? And which phone would you recommend - 4 or 4S? Is it worth getting one?

Any info is much appreciated. Cheers.

Why won't my iphone personal hotspot connect to my laptop?

I don't have Wi-Fi in my house (don't even ask) and i connect to the internet with my and my parents' phones. I've recently upgraded from the iphone 4s to the 5, and while the personal hotspot from the old one worked fine on my laptop before the new one just doesn't connect to my phone.
My dad's also got the iphone 5 and it connects fine to his, but when mine shows up on the network list and i click on it says 'checking network requirements' and then 'can't connect with this network'. On my dad's as soon as i click on it it prompts to enter the network key with no problems. The diagnostics page is no help, can somebody help!
and by the way i'm on a samsung windows 8 laptop.

Which iPhone 5 case should i buy? - 1

I have iPhone 5 and i want to buy a case for my iPhone so please recomened me that which iPhone case is good for me. There are some cases which looks nice to me.

http://www.technologysnip.com/best-iphone-5-cases/

please give your suggestions.

Forgot passcode for iPhone 4S, don't want to update?

So everytime I hook it up to restore it, it says I have to update the software. Is there a way to restore it or over ride the pass code without updating?
I've been trying to update it all day but it gets half way through & the dodgy Internet stops or disconnects itself!
Please help!
Oh and I've only got windows 7 not a Mac

Where to get a Touchscreen mp3 with apps?

I have a younger brother who loves to play angry birds on my iPod and iPhone is there any type of cheap touchscreen alternative for an iPod because he has dropped my iPod a lot and even cracked the screen. So I would like to get him something not so expensive that wouldn't be a big deal if he broke. Any ideas on what I can get him? It can run any type of software

Trimmed sim card doesn't fit in iPhone 5?

So yesterday I went to a phone shop to cut my simcard for an iPhone 5 but when i tried it at home it didn't fit. If I want it to fit I need to cut a little bit of the gold part of my sim? Can I do that? Or do I need to buy a new sim card?

How to put my iPhone in DFU mode without home button?

So, I'm trying to jailbreak my iphone 4 (with iOS 6.0.1) and I can't put my phone in DFU mode because I don't have a home button! (my screen cracked and pieces fell out and my home button is completely off) is there any websites or anything that will put my phone in DFU mode?