I have a Mini and a Tracker+ and I agree, the Tracker+ with a power bank is ironically way more portable than the Mini (if you want real time note entry via a pad controller or keyboard), as it needs more cables and equipment to pull that off.
It’s frustrating and honestly my only “gripe” with the Mini (I adore it otherwise), but I think they might still be working on this. Please vote here for them to give us an option for real time playing of synths and sample slices here via the 8 contextual buttons below the screen: Alternate Note Entry Mode
I still have hope for this! 
