My IPhone 5c's storage problem?

I got my iPhone 5c about a week ago, and it holds 8GB of data.
Today, I got a message saying that my storage was running out so I couldn't take any photos or videos etc. I checked my usage section, and it said that I had 23 MB left of my 8 GB. I only have about 20 pictures and hardly any apps/music.
I then deleted all of my apps, music and photos and it said that I had 1.8GB used and 3.6GB free (see picture) If I have an 8GB phone then why is it only allowing me about 5GB of data overall? Also, as I have deleted everything- why is it saying that I have used 1.8GB?
Thanks for your help(:My IPhone 5c s storage problem

Obviously the phone needs to use part of that storage to work. Although you have 3.5 free, so thats plenty, just offload all pics and videos to computer if you really want to save them.

My daughter's phone is doing the same thing, she deleted everything. All she has is 10 applications on her phone and she is still getting error message, please help

  • What to do about my iphone storage saying I'm using up way more photo storage than I actually am? My storage says I have 132 photos that's using up most of my storage; almost 3 GB. I have only 52 photos and 15 videos in my phone. It seems like it may be using storage from pictures I deleted, but apparently they're still using space? ? Has this happened to anyone else. I've taken my phone to an apple store, and I didn't get any answers.
  • Problem with available storage & iPhone update? I'm trying to update my phone (without it being hooked up to my computer, my computer is broken.) I know you can update it without it being plugged in. So it says I need 2.4 available storage & so I can't update it. But when I go check how much storage I have it says my available storage is 4.5. What do I do?
  • On the I cloud on the Iphone what does total storage and available storage mean? Basically it says total storage 5gb and availible storage 5 gb. Does that mean there's already 5 gb of files on the Icloud?
  • IPhone Storage Plan Problem? My data plan says I have a 10GB phone. I'm paying for a 10GB plan. Yet, my iPhone's capacity is only 6.4GB. I do not have room for over 5 apps, and 300 photos. I tried to change my plan on my phone, but it will only let me edit my iCloud storage. Help: How can I get my phone to the 10GB I'm paying for?