Technology
Tablets & Smartphones
Memory
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Technology
Tablets & Smartphones
Memory
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 Under Construction.
A 32 GB iPhone has about 28 GB available for user data.
If you have 33 apps, the average, they will take 2-3 GB.
In the remaining 25 GB you can get about:
6,000 pictures (12 MP camera)
or 2,500 songs *
or 4 HD movies
or 3 hrs of HD video you record
* Note: Many people prefer to keep their music in the cloud,
but if you want music while you're not on Wi-FI (e.g. jogging, flying,...)
you will want to download some music.
Photos
iPhone 5 & 6 8 MP camera 1.5-3.8 MB/photo1
iPhone 6s & 7 12 MP camera 2.4-5.2 MB/photo
1 Compression varies depending on the amount of detail
HDR adds about 220K
2 iPhone 6s and above have a live video option which captures a 3 sec. video
in addition to the photo. It adds 500K to the image size
Music
iTunes uses Advanced Audio Compression (AAC) (.m4a file extension)
It is compressed and has an average bit rate of 256 Kbps.
Popular music av 2.6 MB/min av 3.2 min/song = 8 MB/song
Classical music av 2.3 MB/min 7-9 min/song = 18 MB/song
You can tell iTunes to transcode stuff to 128 kbps to reduce the size
when syncing to iDevices.
See:
Apple ACC at Audio Video
Video
Recording
SD 1-3 GB
HD 30fps 130MB/min 45 min = 3-6 GB
HD 60fps 200 MB/min
4K 30fps 375 MB/min
Space will depend on the detail and amount of motion because of the
way the compression works.
Movies and TV shows take up less space than vido you record.
HD 2.6 GB/hour - most movies are about 2 hrs so 5 GB
See Final Cut Pro 7 User Manual: Determining How Much Space You Need
Apps: iPhone Average 70 MB per app (9.3 GB for 132 apps) Android Average 72 MB per app (5.96 GB fpr 83 apps) The largest I had were, Numbers (317 MB) and Facebook (165 MB) on iPhone. Kindle (220 MB), Excel (206 MB),Chrome (193 MB), Facebook (178 MB) on Android. 25% were > 75 MB; 25% were < 25MB; Median was 38 MB
The average user in the U.S. had 33 apps downloaded.
How many apps does the average iPhone user have installed? - Quora
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