My 8GB iphone 4 only has 6, 4GB space?

Why does my Iphone only have 6, 4 GB?
Does it have to do because I have Jailbroken it?
BTW, I calculated the Usage and its only 900 MB and it says I've used 3GB

The software on the iPhone takes up space so you can never truly use the full amount it says.

Thats because your iphone already has lots of files on it. You can't delete these files. The fact that it says 6.4 gb it means that it is all the room you can download and delete things in.

The operating system of the phone (iOS) take up some of the space. That probably counts for the 900MB-3GB difference. As for it reading 6.4GB, there are different measurements for hard drive space, and there are various discrepancies between them. For example there's a difference between Gb and GB. A Gb is 1000Mb whereas a GB is 1024MB.

Gb = Gigabit
Mb = Megabit
GB= gigabyte
MB = megabyte

Some memory is taken up by built in features like the iOS itself. You can't blame that on Apple. No mass storage device has 100% user accessible capacity, not even your computer. This is just standard thing don't worry too about it. My "64 GB" iPhone 4S tells me that its capacity is 57.4 GB.

  • Which ios is best for iphone 4, 8gb with a 2.1gb of memory free space? I have an iphone 4 8gb. Which ios is the best for my phone? Now i'm using ios 6. Sometimes it gets lagged when opening app such as line, path or instagram. Does the phone memory affect the performance too? Currently there's 2, 1 gb of free space in my phone. I don't put any musics in it. I only use my phone for communication and social media and gallery as well. Anyone know well about ios and iphone, your help is very appreciative.
  • Is there an iPhone timer app that has a minutes-only and/or a seconds-only option? I'm looking for a timer app on my phone where I can set a timer that counts down, but have it read literal minutes or seconds. Like instead of 6:00:00 for 6 hours, I'd want it to read 240:00 (240 minutes) or just have it read 14,400 seconds. I've downloaded about 20 free timer apps, and can't find what I'm looking for. Is there one? Even if it costs money? But I'd prefer it to be free…
  • Is 8GB of space enough for an iPhone 4S? I'm asking this question again so I can have a final decision whether to get the iPhone 4S. Anyway, I was wondering if 8GB of space is enough for an iPhone 4S. I'm 13 and this is going to be my first phone. Any tips on how to save space? Please answer As soon as possible.
  • IPhone 4, is 8gb enough space? I would probably have around 30-50 pictures on there and probably around 220-300songs with about 20 apps, is that enough space?