

Now, a photo is typically 2MB, which doesn't sound too bad, but let's say you've just snapped a dozen photos with your Lumia 1020 (on WP8.1) and want to send them wirelessly to an Apple Mac computer then you're looking at a twenty minute wait while the photos transfer wirelessly in the background.

In practice, depending on your device and (here) Mac, you may be able to double this, so reckon on sending a Megabyte per minute.

You can stream music over Bluetooth profiles at a few hundred kbps to headphones, for example, but that equates to only a few tens of kb of data a second, or over a minute to transfer a single MB. I should warn you that Bluetooth is designed for relatively low data rates and file sizes.
