If you're in the market for a treadmill, you may be wondering whether an automatic or manual model is the best choice for you. Although automatic treadmills are typically more expensive than their manual counterparts, they offer a number of features that manual models don't. For example, automatic treadmills often come with built-in heart rate monitors and calorie counters, while manual treadmills typically don't.nnAnother difference is that automatic treadmills often have built-in programs that allow you to vary your workout, while manual treadmill workouts are much more consistent. So, if you're looking for a treadmill that offers more features and options, an automatic treadmill is probably the way to go. However, if you're concerned about quality and durability, a manual treadmill is likely the better choice.