The Life Fitness Flexstrider Discover SI is one of the most intuitive and intelligent fitness machines on the market today. Unlike other trainers in this class, the FlexStrider enables users to change their stride length on the fly—perhaps to change from walking to jogging to sprinting—while the machine adapts and readjusts to support those movements. The wide tactile pedals or platforms include straps to ensure constant contact between the feet and the pedals. This in turn leads to a less impactful workout in terms of stress to the lower body joints and muscles. The handlebars on the machine, which include the proprietary LifePulse digital heart monitoring sensors, also move forward and backward—with resistance—which gives users the unique opportunity to also work their upper body as they walk or run.

The Life Fitness Flexstrider Discover SI comes pre-programmed with 26 different workout portfolios. They include courses that provide a “vigorous to moderate” burn; several interval-style workouts that measure for fixed and variable time as well as speed; a calorie burning regimen; a Manual and a Quick Start function; an altitude or hill course; a Rolling Hills workout; several fitness tests; and programs that measure time in the target heart rate zone and pace.

The real star of this Elevation Series Life Fitness Elevation Series Flexstrider Variable Stride Trainer is the Discover SI Tablet Console. A bright 10 inch LED display console, the Discover SI not only provides readouts detailing workout specifics (heart rate, calories, time, distance, etc.), it is also pre-wired to the Internet and Bluetooth. Through this console, users can play games like Solitaire and Flipboard as they workout, watch streaming television, take advantage of very genuine looking Lifescape Interactive Courses, or merely surf the web. Best of all, the console can be programmed to provide information in 21 different languages, making it perfect for nearly every workout enthusiast.