Both versions include the same jump starter, the key difference between these two kits is the included accessories and the packaging.
The Safety version comes in an attractive cardboard box and includes a soft carrying pouch to make it easy to fit in a glove box or other small area.
It also includes an updated 3in1 USB cable with lightning, micro-usb and USB Type C ends.
As well it includes a car and wall charger. The Safety Plus comes in a hard shell zippered case and does not include the soft pouch, but it does add a Portable Air Compressor that is powered off the jump starter as well as 9 laptop tips and cable.