I can't get IOS 8 on my iPhone 4S?

I have the iPhone 4 and I really want to download IOS 8 but my phone is only 8 GB. Even after I have deleted all apps or pictures or music or anything I only have 5 actual GB on my phone because of all the pre downloaded apps and everything that comes already on the phone when you buy it. To download IOS 8 you need 5.6 GB or something near there. Is there anyway I can get IOS 8 or am I just out of luck?

Do it from your computer. I don't know how it is on 4S, but on my 5 it asked for 4.7GB. When I downloaded it through iTunes, it only asked for 640mb.

Download with itunes on comp instead

Well… Before you do any of that think about this. Ios8 is for bigger phones. Like the 6 plus. That thing is 2 whole inches bigger than the 4… The 4 is really old and it would completely slow your phone down and mess it up. My personal opinion would be definitely not to do that.