The ProForm 545S was manufactured in 2003. The ProForm XP 650E was manufactured in 2005. These two treadmills are more alike than different. They are foldable, motorized treadmills designed for residential use. The 545S and the XP 650E share the same specifications and basic design. They offer slightly different console features.
The two treadmills have the basic fold-away design. You lift the deck and store the treadmill in an upright position. The 545S has a 2.0-horsepower motor, while the XP 650E sports a 2.5-horsepower motor. The XP 650E can handle larger loads; the weight limit for the 545S is 250 lb. and for the XP 650E is 300 lb.
Both the 545S and the XP 650E have speed ranges between 0 and 10 mph. The 545S has 10 quick-set speed buttons. The XP 650E has both incline and speed quick-set buttons. Press one button to change the speed or incline instantly. Both treadmills have an automatic incline ramp that goes from 0 to 10 percent in .5 percent increments.
Both these treadmills have preset workout programs. The treadmill automatically adjusts the incline and speed settings for you. The 545S has four programs, and the XP 650E features six programs. In addition, both treadmills have two heart rate control programs. The treadmill adjusts the speed and incline settings to keep your heart rate in a specified target zone. The 545S and XP 650E have pulse sensors on the handlebars so you can check your heart rate during your workouts.
The 545S and XP 650E feature iFit technology. Connect the treadmill to your computer, stereo or MP3 player. Purchase workout CDs to play or download MP3 workouts. A virtual personal trainer will guide you through each step of the workout, offering motivation and guidance. If you connect the treadmill to your computer, you can download additional workouts from the iFit.com website.