• Your favorite

    Apple

    ,

    iPhone

    ,

    iPad

    ,

    iOS

    ,
    Jailbreak
    , and
    Cydia
    site.
  • How Big Are iPhone 4 Photos and Video?


    In trying to decide whether to go all-out for the 32GB iPhone 4 or save a hundred bucks and just get the 16GB, one of the considerations is photo and video size. My whole music library won't fit on any iPhone (or any iPod for that matter), so that's not going to be the deciding factor. But will I regret it if I have a small iPhone and decide to take some video? We don't yet know exactly how big the iPhone's 720p HD video will get, but fortunately, someone has done the calculations and the answer seems to be that you'll want all the space you can get if you're planning on shooting video. Feel free to skip the next few paragraphs if you want to avoid the math.

    Justin Horn at WhenWillApple? did a similar estimate last year when trying to decide whether to get a 16GB or 32GB iPhone 3GS. To determine file size for still images, he just does a simple scale up from the size of the files generated by the 3GS's camera: since the 3GS generates an average file size of 1.3 MB at 3.2 megapixels, Justin figures that the pictures taken on the 5-megapixel camera of the iPhone 4 will be about 2.7 MB each. Not that big a deal… even with a bunch of music and apps on your iPhone, you can probably take a couple hundred pictures before noticing it.

    In order to figure out video size, Justin goes to Apple's best frenemy Adobe. They have a guide up on their website that gives simple formulas for calculating the amount of space that video will take up. First, you determine the size of a single frame using the formula:
    Frame size K = ([Pixel Width x Pixel Height x Bit Depth] / 8) / 1024
    Figuring that the 720p HD camera will image at a bit depth of 24 colors, Justin calculated ( [960 x 720 x 24] / 8 ) / 1024 for 2025 KB per frame. Then, he multiplied that by 30 for the number of frames per second and got the figure of 60.75 MB for each second of uncompressed video. Justin had estimated a 60:1 compression ratio for the H.264 video on last year's 3GS but found that to be a bit high in practice. Assuming a 40:1 compression ratio made the math come out right, so he's making the same assumption for the iPhone 4's video compression, he ended up with 1.518 MB per second of compressed video. So if you want to store as much as 250 minutes of video on your iPhone 4, say 50 five-minute clips, he calculates it will take 21.73 GB (1518.75 KB/sec compressed * 250 min * 60 s / min * 1 MB / 1024 KB * 1GB / 1024 MB)

    Bottom line: unless you want to take four hours of HD video on one go on your phone, or carry that much around in your pocket, you'll probably be fine with the 16GB model. However, if you're taking a bunch of videos, and carry a lot of music, sideload a bunch of apps and have a whole library of books, 32GB might be a reasonable decision. At least, that's what I just talked myself into...
    This article was originally published in forum thread: How Big Are iPhone 4 Photos and Video? started by Paul Daniel Ash View original post
    Comments 85 Comments
    1. iLaw-One's Avatar
      iLaw-One -
      Quote Originally Posted by rpgpromaster View Post
      Well I have 4.34 GB free on my 3GS 16GB with 5.74 GB being used for music, 235.8 MB for photos,3.45 GB apps and 552.8 MB in other. So I think I will be safe having a 16GB iPhone 4 or should I save a bit longer and get the 32GB?

      Help Please!!!

      As far as the iphone 4 and apps, music, video, pics etc is concerned, I truly believe that size does count...don't even give it a second thought...get the 32GB if you can...
    1. adeel akmal's Avatar
      adeel akmal -
      there should be a 64 gb model. maybe apple saved it for the christmas
    1. BlackDrag0n's Avatar
      BlackDrag0n -
      LOL, so want a 64gb version, also heard they are releasing a chiken nugget case too, lol.
    1. brotherbond007's Avatar
      brotherbond007 -
      I have a 32G 3GS, I always have 14-19Gs left to play with and I shoot a lot of pic and vids. Will be going back to the 16G.
    1. tgabriel123's Avatar
      tgabriel123 -
      I'll be happy when we have like a 300GB iPhone(:
    1. whereswaldo's Avatar
      whereswaldo -
      I'm probably getting the 16GB and keeping my 32GB touch for some movies
    1. sziklassy's Avatar
      sziklassy -
      I, for one, am happy they increased the battery size rather than added more room. Those recording times seem about right. I get about 3 hours of 720p 60fps on my Kodak PlaySport, so it stands to reason 30fps would be somewhat less.

      Quote Originally Posted by tgabriel123 View Post
      I'll be happy when we have like a 300GB iPhone(:
      By the time that happens you won't be happy because media files will grow with the rend as well.

      Quote Originally Posted by adeel akmal View Post
      there should be a 64 gb model. maybe apple saved it for the christmas
      I doubt they want to repeat what happened with the first iPhone again... too much of a hassle dealing with disgruntled customers.

      Quote Originally Posted by iLaw-One View Post
      That depends on where you are and if you either get for just your country or for your region...average size for a single country is around 360MB hope that helps
      For those in the US, you are looking at more like 1.5 gigs.

      Quote Originally Posted by rpgpromaster View Post
      Well I have 4.34 GB free on my 3GS 16GB with 5.74 GB being used for music, 235.8 MB for photos,3.45 GB apps and 552.8 MB in other. So I think I will be safe having a 16GB iPhone 4 or should I save a bit longer and get the 32GB?

      Help Please!!!
      I's a little hard to give you help on this. Only YOU truly know what you would use it for. I plan on using it semi-frequently as a supplemental vlogging camera, so I know the additional space is going to be worth it for me. If you don't plan on shooting videos, I wouldn't bother bumping it to 32 gigs.
    1. Justin13's Avatar
      Justin13 -
      After going back and watching the keynote, it appears that Apple is using real 720p HD (16:9 1280x720p vs the 4:3 I assumed at first). I have updated the page with the following calculations:

      iPhone 4 video size for 250 mins if true 720p (1280 x 720):

      ( [1280 x 720 x 24] / 8 ) / 1024 = 2700 KB / frame

      2700 KB/frame x 30 frames/sec = 81000 KB/sec

      81000 KB/sec / 40 compression ratio = 2025 KB/s compressed

      2025 KB/sec compressed * 250 min * 60 s / min * 1 MB / 1024 KB * 1GB / 1024 MB = 28.97 GB (For 1 min: 118 MB )
    1. confucious's Avatar
      confucious -
      Why are people surprised that there is not a 64Gb version? AFAIK no one makes a 64K memory chip - do you guys know something I don't?

      As for the file size, since when has video been stored as a series of stills rather than just the changes between each frame?
    1. adp's Avatar
      adp -
      Quote Originally Posted by Masterz1337 View Post
      I'm planning on getting a GPS app for the iPhone 4 (as I'm sure many people upgrading from a 3G will), does anyone know what the average size is for one of the GPS Apps?
      I have both Navigon and TomTom and they both come at around 1.5 Gb each in size. But you can SSH into the app and delete the maps of the states you don't need - which takes it down to about 300Mb. Still think Navigon is superior and I'll probably delete TomTom when I get low on space.
    1. faschierbasis's Avatar
      faschierbasis -
      common apple where is the 64 gb version.... or give us at least a micro sd slot.. wtf??
    1. p3eps's Avatar
      p3eps -
      Personally I don't see the point in going for the 16gb version - as you can never have too much storage space.

      I bought the iPhone 2G in 8gb, and changed to the 16gb one as soon as it came out as I didn't have enough space. Hopefully there will be a 64gb version eventually, and I can swap my 32gb one for a 64gb one!

      Better having too much than too little - especially as the price difference isn't that much.
    1. Harris.s.7's Avatar
      Harris.s.7 -
      Now that you have decided 16GB or 32GB what about the colour, White or black????
    1. JayWheelz's Avatar
      JayWheelz -
      Quote Originally Posted by Kyle Matthews View Post
      Grr where is the 256GB solid state version?
      That would be a great phone but knowing Apple. It would most likely cost like $3000 lol. We all know they love their high priced products.
    1. feidhlim1986's Avatar
      feidhlim1986 -
      How many times as the 64GB question been answered....does the iPod Touch not have 2x32GB chips....and no phone, gps, compass, camera etc chips. The iPod Touch probably has a smaller (physically) battery too cos it doesnt need to use as much power, the iPhone 4 has an even larger battery now than 3GS. Bottom line, there doesn't exist a single chip 64GB, so there is no room for two 32GB chips in the iPhone using it's current design.
    1. CaptainChaos's Avatar
      CaptainChaos -
      16gb for me. I don't see myself storing my self shot videos on the phone itself. I have an HD recorder already.
    1. vindutch's Avatar
      vindutch -
      Well if Apple gets the Cloud working there is no need for more memory. All your songs, movies, and apps will be in the clouds for you to grab, as long as you have wifi. Or until we get 4G
    1. theimapwnu's Avatar
      theimapwnu -
      32gb black for me

      i always buy the highend, is it really that worth to save $100? I pay more than that for my plan monthly! Also the resale value will be higher
    1. aperry's Avatar
      aperry -
      Quote Originally Posted by p3eps View Post
      Personally I don't see the point in going for the 16gb version - as you can never have too much storage space.
      Heh, well I think the point is to save $100.

      For me this comes down to movies. Now that I have an iPad it's hard to imagine watching any movies on the iPhone. Without the iPad, I'd definitely be buying the 32GB version.

      Regarding music: I have about 70GB of music, so I use smart playlists to make sure I don't waste space with music that I'll never listen to. I can get that down to a few gigs and that's really more than enough for me (and I only sync every few weeks).

      Photos aren't an issue. I have over a thousand on my 3GS, but that's only 1.5GB or so.

      720p video is something I've thought about. This is the maine feature I want in the iPhone 4, but my pattern is to take dozens of 1-2 minute clips of my kids. That's all I need and it'll never add up to more than a few gigs. I don't anticipate ever needing it for anything longer than 10 minutes or so.

      Honestly, I have a 32GB 3GS but I'm seriously thinking about downgrading to a 16GB iPhone 4.
    1. MetallicaFan1991's Avatar
      MetallicaFan1991 -
      They should have put an micro SD card slot in, hopefully next year they'll put a micro SD slot and a 64GB option .