Why don't I have enough space on my iPhone 4S?

I have 1GB of space left over and my phone won't let me download a 800MB app. Do I need to have a certain amount of empty space or something?

Yeah, you need some space for reserve.

Q: Why don't I have enough space on my iPhone 4S?
A: Because you have too many files saved on it.

Your phone will always try to compensate for space needed for up coming updates.

  • Will a 16gb iphone 4s have enough space? Okay, I have about 10gb of music, 2 gigs of apps, and.15g of photos currently on my 32g ipod touch 4th gen. I'm paying for this iphone myself, for christmas. My parents are very against me getting one, so that's the way it's gonna be. I currently have a piece of crap lg keyboard phone, so I need an upgrade anyway. Used iphone 4s 16g s are 50 bucks on sprint. Used 32g are 150. I could sell my ipod, but I want to spend as little as possible. WIll 16gigs be enough for me?
  • Why don't I have space in my iPhone? I deleted about 1000 pictures and all my apps from my phone but it still says I'm running out of storage space.
  • Why don't I have enough storage on my iPhone? I have a 16gb iPhone 5. I used up 13.3 gb so far and It tells me I don't have enough storage to take a pic anymore. I have lik 117 mb left but it's 16gb. What happened to the rest of like 2.7 gb. It's frustrating me.
  • Why Don't Have Enough iCloud Storage To Backup My iPhone? My iPhone 5s has always done a backup but for some reason, I tried to backup the iPhone again this morning and it said that I don't have enough iCloud storage. What do I have to do to get more iCloud storage WITHOUT BUYING MORE STORAGE?