Low Memory error on Bangle JS 2

What happens if you change

if(event.y<60){ walking(){function selectOnTouchTimer(n, event1) {timer();};}

to

if(event.y<60){ 
  walking();
  Bangle.removeListener('touch', selectOnTouch);
  {function selectOnTouchTimer(n, event1) {timer();};}
}

?

I'm not sure what line 4 above would actually do though? Seems to me like it's only defining a function - not executing it.

I would probably try a rewrite to something like

function selectOnTouchTimer(n, event1) {timer()}

function selectOnTouch(n, event) { 
  if(event.y<60){
    walking()
    Bangle.removeListener('touch', selectOnTouch);
    Bangle.on('touch', selectOnTouchTimer)
  }
  else if(event.y>=60 && event.y<120) {jogging();}
  else {cycling();}
}

possibly switching line 6 and 7 around.

Does any of that make it work?

EDIT: Also, both your examples have too few closing curly brackets. There should be a final one closing out the function selectOnTouch() in both. The second example also needs one more at the end of line 2.