What's the difference between a horizontal and vertical loaf bread maker?

Horizontal-pan machines (like the Zojirushi Virtuoso Plus and Supreme, or the Breville Custom Loaf) produce traditional rectangular sandwich loaves with two kneading paddles. Vertical single-paddle machines produce taller, more cube-shaped loaves and tend to be cheaper and more compact. Reviewers consistently note horizontal designs deliver slice shapes closer to store-bought bread.