The differences between Bosch Smart and Standard ? Or the Kiox and a Kiox 300 ?
There's lots explaining the smart system. The cables and electronics are all different. The primary system controller now lives in the mode controller on your handlebar (or in a little box if you have the micro controller) - so you don't need a screen by default anymore (hence the retrofit screen option for people who decide they do want a screen).
Bosch eBike Systems unveils new smart system and vision for e-mobility Headlines: New 750Wh battery New Kiox 300 Display New Handle Remote Controller New App to allow custom modes based on rider requirements None of this is backwards compatible, its an all new system with new connectors...