RAW vs JPEG
RAW is the camera's unprocessed sensor data, offering maximum editing latitude in large files; JPEG is a compressed, processed image that's smaller and ready to use but less flexible to edit.
A RAW file (Canon CR3, Nikon NEF, Sony ARW, Fujifilm RAF) records everything the sensor captured, so you can recover highlights and shadows and adjust white balance freely — at the cost of large files that need processing. A JPEG is baked and compressed in-camera: smaller and instantly usable, but with less room to push in editing.
Many cameras shoot RAW+JPEG, writing both. When delivering camera-to-cloud, you can choose to upload the RAW, the JPEG, or both — JPEGs for instant client previews and RAWs for the edit.
See also
Put it into practice
CloudTether tethers your camera to your phone and delivers every shot to the cloud, live as you shoot — no laptop.