Really really fast BASIC handheld

[StephenG1CMZ]

I was thinking of splashing out on a Nintendo 2DS and Smilebasic, but this page
http://smilebasic.com/en/buynow/
Says Smilebasic is exclusively for 3DS (not the 2DS or the Switch, apparently).

I could risk a Nintendo 2DS and Smilebasic, but it might no longer be supported... And the Smilebasic has to be downloaded.
An alternative actually available on the High Street is the Casio Cg50, with a version of micropython (but no graphics from Python) and a "C.Basic" that is downloadable - but that is far less common.