Originally posted by FozzFoster Bluetooth transfer speeds are much faster (albeit with lesser bandwidth than wifi, I think).
There is a direct relationship between bandwidth, frequency, range, power consumption and transfer speed. Bluetooth is a low-bandwidth communication protocol, so transfer speeds are slower than high-bandwidth communication protocols like 802.11 WiFi, but requires less power to achieve a similar range. Bluetooth is marginally acceptable for high-fidelity audio communication; for transferring RAW images, it is perfectly useless. In a high resolution digital camera, Bluetooth is useful for quickly and simply making a connection between the camera's built-in 802.11 WiFi and a high bandwidth WiFi access point, while consuming very little battery power itself. It has a longer range and is more secure than using NFC (near field communication) to do the same thing in a digital camera.
The following isn't directed at anyone specific: If you want fast wireless data transfer, it takes power, lots of power, and if there isn't an equally powerful and fast wireless networked device within range to communicate with, wireless data transfer is like (insert crude barnyard simile here). For a group of camera users that obsess over unbaked RAWs and time consuming post processing to extract every last drop of IQ, it makes absolutely ZERO sense to obsess over faster wireless data transfer in a camera. If you really need to transfer images to a computer network with minimum delay after pressing the shutter, tether your camera to a laptop with high bandwidth network access. The same group of obsessive camera users also obsess over the size and weight of their equipment; well, putting faster wireless network access in a camera works against that. Wireless network access in a high resolution digital camera is good for Image Sync apps that let you remotely control your camera with a small compact device in specific instances where you can't see the live view display and you want to have some way to change camera settings and release the shutter without touching the camera. Period. For the easiest, fastest and most reliable transfer of RAW images, take the SD memory card out of the camera and copy the files to a computer. Period.