iPhone 4 has a range of improvements including high resolution screen, gyroscope, improved processor, 512MB RAM, 5 megapixel camera with flash and a front facing camera for video calling.
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iPhone 4 has better specs than 3gs. You can check some reviews on this site.
(See the sources below)
the 3gs is much better for it's money iphone 3gs is better, i think. but it is very dear. it seems that you have enough money. if not, you can buy cheap phone instead.
no why do you think its called trading in?
It really depends on your preferences. The iPhone 4 might have some more improvements but they are really similar.
iOS 5 will be compatible with iPhone 3GS as well as iPhone 4.
Yes, you can put an iPhone camera in an iPhone 3GS provided you have the required skills.
iPhone 3GS. Then the iPhone 4 and then the iPhone 4S.
the iphone company said the the iphone 3gs is the fastest phone in the whole world and its better than the droid and the storm and pre
yes
yes , uu can .
No. The only iPhone that has the ability to FaceTime is the iPhone 4.
iPhone 4 ,however my father has the iPhone 3GS which is quite good.
Iphone 3GS- £399.99 (8 GB) Iphone 4 - £499.99 (16GB) Iphone 4 - £599.99 (32 GB) I would go for the Iphone 3GS because it is cheaper and wider screened. But the choice is totally up to you! Good Luck!