Why can I Airdrop a large file, but wouldn’t be able to send that same file by text message or email?
In: Technology
AirDrop uses Bluetooth and WiFi in a pretty smart way. Your phone acts like a walkie talkie with Bluetooth by sending a “hello” message out to anyone nearby and will only listen back from people in your contact list (unless you specify everyone).
Then once you have figured out the person on the other end you want to send to, it creates an ad-hoc WiFi connection between you both, meaning it doesn’t require you both to be connected to the same WiFi access point; it creates its own temporary one with encryption specifically for the file transfer.
Because of this you can transfer large files due to only being restricted by the speeds of the WiFi chip on either device.
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