1) Bobby Pro is available in 3 colors and Bobby Hero is available in 9 colors.
2) Bobby Pro is available in 1 size and Bobby Hero in 3 sizes (small - regular - xl).
3) Bobby Pro has internal dividers included, while with the Bobby Hero you can purchase it separately.
4) Bobby Pro also has extra features such as an Extensible Keychain and the Fidlock System. These are not included with Bobby Hero.
It's also good to know the Bobby Hero is the new and upgraded version of the Bobby Original. Both Bobby Pro and Hero have an Anti-Theft design with Cut Resistant material, Hidden zippers, RFID-protected pockets & No Front Access.