Anything that can detect an incoming bullet, and move the body quicker than it takes the bullet to arrive, is likely to do as much or more damage to the body than the bullet. At ranges of a few feet to maybe twenty yards, we are talking speeds of around 1/1000 of a second. What kind of impact is necessary to move a human body quick enough to avoid that?
“Anything that can detect an incoming bullet...”
But what about other projectiles, i.e.m dodging a rocket-propelled grenade? They don’t move at the speed a bullet does.