Controls: The incremental, speed-control buttons are oriented as expected with the increase button on the top or right-hand side. They are positioned appropriately being right next to one another. The button size is considered good, making it manageable to operate while exercising. An alternative set of quick speed-controls provide the ability to select every, whole-number speed, using a complete set of control buttons. The incremental, incline-control buttons are oriented as expected with the increase button on the top or right-hand side. They are positioned appropriately, being adjacent to one another. The button size is considered good, making operation manageable while exercising. An alternative set of quick incline-controls provide the ability to select every whole-number incline, including zero, using a complete set of control buttons. Display: The monitor displays white characters on a blue colored background. The size of the characters showing the "speed" is considered excellent and the size of the characters showing "incline" is considered excellent. Individual exercise statistics are displayed in separate windows. Programs: This machine comes equipped with 7 built-in exercise programs. A list of programs is convenienty shown on the console. A graphical illustration of each program's exercise profile is shown on the console. Ergonomics: The step-up height to the running deck is 7 inches from the floor. This machine has a front handgrip, which provides less grip area than a full handrail. A partial side-handrail provides both security and easy access. Exercise: The minimum incline for this machine is 0 percent. The maximum incline is 12.2 percent. The manufacturer-stated, top speed is 12 mph. Construction: This machine features a motor with a 3.5 hp rating. The 2 floor-levelers provide some amount of leveling adjustment. Performance on our durability test - simulating a half-year of usage - was excellent, showing little signs of wear. Safety: The "stop" button size was considered good. The magnetic style safety-key disengaged without issue when a user approached the end of the running belt, which stopped the motor and running belt as expected. When walking within reach of the control console, the motor housing which resides at the front of the running belt, created frequent interference with a user's feet.

The Spirit Fitness XT485 is part of the Treadmills test program at Consumer Reports. In our lab tests, Treadmills models like the XT485 are rated on multiple criteria, such as those listed below.

Ergonomics: Ergonomics considers how well the machine accommodates the needs of users and includes belt size, foot-rail design and handgrip design.

Construction: Construction considers aspects that impact quality like the motor and related components, running deck and the results of our durability tests.

Ease of use: Ease of use considers the ease of using the controls, functions, programs and reading the display.