Doesn’t compressing and decompressing files also distort them the same as making a copy of a copy of a copy ect. So not only is the size a limiting factor of the quality but also the constant compression and decompression worsening the quality.
Each copy gets worse than the previous which is called generation loss. Example below.
[Generation Loss photos (wiki)]
(https://en.m.wikipedia.org/wiki/Generation_loss)
iPhone to iPhone messaging uses apples iMessage service (blue bubbles). It users special computers to process the images and videos and sends them to the other device at original quality. It can do this because it uses the internet. Android phones do not have iMessage so they have to use SMS and MMS. They work by connecting to your carriers cell tower and straight to the other person’s phone which means it had to be compressed to travel that way.
When you send a picture or video cross-platform it has to send through MMS which typically has a limit of 1MB. Generally a photo is going to be around 3MB so it’ll have to compress to a third of is size to reach that limit, a ten second 1080p video can fall around 30MB so it’ll have to compress to being a thirtieth of it’s size to hit that same limit.
(These file sizes I’m using aren’t going to be exactly the same for every phone but are what I got from my phone and settings.)
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