What is the difference between the iPhone 4, 4S, and 5?

Someone hit me with all the details, please. I have the iPhone 4 and am eligible for an upgrade. I would like to have Siri and the panoramic camera on my phone. I don't know whether to just upgrade to the 4s so that I can keep my same Lifeproof case that I already have, or if I should go ahead and get the iPhone 5. I don't mind that all of the cord connections are different. What I'm concerned about is that my brother tried to sync his iPhone 5 to my brand new LG sound bar, and for some reason, they are not connecting via Bluetooth. I thought Bluetooth was Bluetooth. I need someone to give me as much info as possible so that I can decide which phone to buy.

Everything you need should be here

http://www.apple.com/...e-iphones/

Motly speed, design and camera, and updates. Ceck apple for more info

You have to have arrived on earth from Samsung Galaxy SII not to know about Apple & Bluetooth

Itunes is about selling, so anything that circumvents that is disallowed FORBIDDEN so there have been BOTH software and hardware changes to IPhones since the very first iPhone

s/w NO "BLUETOOTH" media transfer sharing" FORBIDDEN ie non sharing profile removed
h/w NO MICROSD if all you have to do is move a memory card from one phone to another
h/w No USB OTG whilst in other make Apple will never incorporate it see above

Everything is synced via iTunes, so media is either on the computer or on the phone,
Romeo can't share music with Juliet it may be a reason Leonardo & Claire split?

You can ONLY share data via bluetooth as long as one of the phone is NOT an iPhone

There are many 'profiles' [tasks performed] in bluetooth and Apple have removed most leaving HSP HEAD SET PROFILE IE Bluetooth Headset

re iPhones

1) The price paid or tariffs commanded (no demanded) by iPhones… On any every network defy logic and gravity!

2) Note the source

3) http://www.gsmarena.com/...ew-822.php

4)As the ad states the IP5 "best ever iPhone has a 1.2 Ghz Dual Core processor

Also the SGS II, which means that 18 months AFTER the multiple Phone of the Year winner, Samsung Galaxy S II was released the IP5 now has the same speed processor which BTW has the "omitted" 8 included

The IP5 only has 3 NEW features on it NOT on the IP4S

IP4S 1.0GHz DC and IP5 1.2GHz DC
Windows 8 phone are coming in at 1.5 Ghz Dual Core processor as standard