Differences between the iPhone 4 and iPhone 5?

My mom is getting me an iPhone 4 for my birthday. My dad said she should have gone with the iPhone 5 because its better. Are there really any major differences between the two? Does one run faster? Are there certain apps that I can only get on one of them?

The iphone 5 has a 1 GHZ processor which is significantly faster than the iphone 4 and 4s which have 800 MHZ processor the iphone 4 does not have siri, but the iphone 4s and 5 have siri. As for the apps, the iphone 5 can be updated to a further extent than the 4 and 4s in order to cope with the future apps then apple have in store. The iphone 5 can handle more graphic intense games and apps then the 4 and 4s. In terms of built quality, the iphone 5 is lighter as oppose to the 4 and 4s which are built of glass and metal.

All iPhones are overpriced http://www.itproportal.com/2012/09/06/8gb-iphone-4s-version-be-introduced-iphone-5-launch/

The IP4 is months away from being discontinued when Apple release the IP5S.

Apple only support LAST 3 iPhones, discontinued means no longer sold by Apple, any future upgrades are for supported phones some new apps just WON'T WORK

On 12/09/2012 IP5 announced… & IP 3GS DROPPED, like the year before IP4S IN, IP3G OUT.

All iPhone do NOT have BLUETOOTH MEDIA TRANSFER ( sharing) also