If you are a more advanced runner, the Smooth 9.15 HR is a great choice. With the powerful 2.75HP motor, a sizable 20"x54" treadbelt, heart rate monitor control (free) and a extra large 3" LED console displaying your pulse rate, speed, calories burned, time and pace, you can rest assured every workout is maximized!

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Since it´s a power folding treadmill it is very easy to move around and folds automatically with the push of a button.
Since the 7.1 is heavy (260lbs) it has (like other Smooth folding treadmills) a very solid commercial unit feel for a folding treadmill.

A great feature is the heart rate monitor (wireless) which can help you maximize your workout by determening the level of your exertion. By the way, the wireless heart rate monitor is absolutely free!

Other features include: One button start, minimal assembly, 10 year motor, 3 year electronics, 5 year belt and 1 year service warranty (Lifetime frame warranty)