Looking to add a simple piece of exercise equipment to your home? Well, look no further because the selection of step machines out there will be perfect. Designed to mimic traditional stairs, these machines are perfect for cardio exercises. Think of it as going up a flight of stairs over and over again. It’s one of the most intense exercises you can do. The machines are also compact. They won’t take too much space at home. They also feature a wide range of designs, some even including additional features like heart rate monitoring.