The Amazon Echo Show 8 stand is a tilt-and-swivel stand, not a motorized rotating base. One version is described as offering up to 50 degrees of upward tilt, 28 degrees of downward tilt, and a full 360-degree swivel, while Amazon’s newer adjustable stand is listed with 40 degrees of tilt and 360-degree swivel.
That means the screen can be angled quite a bit for viewing or video calls, but the movement is still manual and limited to the stand’s adjustment range. It does not let the display freely pivot like a fully articulated monitor arm, and it does not rotate the whole device by itself.
If you are asking about the Echo Show 8’s own built-in movement, the answer is basically none: the motion comes from the stand, not the display. For the stand itself, a practical way to think about it is “enough tilt to aim the screen toward your face or reduce glare, plus swivel to turn it toward different parts of a room.”