Originally Posted by nlundberg
...but when looking again at output profiles in Calibre, there is only Cybook G3 and Cybook Opus, two devices that does not have the same features and dimensions as the Odyssey, afak.
For most devices it doesn't matter what your device is detected as. The only place it might make a difference in your case is conversions. The images may get resized to smaller images than you would like. To prevent this go to Preferences - Common options - Page setup and change the Output profile to Tablet.