Can iOS 8 run on a iPhone 4s that has only 8GB?

[WizardHunt]

My son is wondering if his 8GB iPhone 4s will run or install? I think I read somewhere it needs 5.7 GB free space in order to install it. But does it keep using that much or does it release the memory? He realizes it might slow his device down but he wants to try. I told him I would check on here first. I know it will run on my iPhone 6 plus coming...so no problem for me....but I feel bad for my son if he will not be able to run it.

 

[Ripcrod]

Instead of going for OTA he can try updating via iTunes and i think with that procedure 5 GB is not mandatory

 

[WizardHunt]

Instead of going for OTA he can try updating via iTunes and i think with that procedure 5 GB is not mandatory

I tried that and it worked. Thanks. It did not require the 5 GB minimum. He has about the same space available that he had before. I did do a full backup in case I had to go back in a emergency but not needed. So if anyone is wondering if 8 GB is ok to install iOS 8 then the answer is YES.