Touchscreen resolution / coordinates

Also tested, my ranges are:
x ∈ [0,191]
y ∈ [0,189]

range_x = [50,50];
range_y = [50,50];
Bangle.on('touch', (button, xy) => {
  
  if (xy.x < range_x[0])
    range_x[0] = xy.x;
  if (xy.x > range_x[1])
    range_x[1] = xy.x;

    if (xy.y < range_y[0])
    range_y[0] = xy.y;
  if (xy.y > range_y[1])
    range_y[1] = xy.y;

      console.log("ranges are", range_x, range_y);
});