MAGNETIC RESISTANCE: Turn the resistance knob on the SF-E3810 elliptical to cycle through 8 levels of magnetic intensity. Each level of resistance makes it more challenging to perform strides on the indoor cardio machine. PULSE GRIPS: Measure the intensity of your exercise by checking your heart rate in real time by grabbing on to the pulse grips. PERFORMANCE DISPLAY: Track your workout information in real time with the onboard, battery-powered performance display. Monitor your time, distance, speed, and calories burned on one convenient display. STRIDE LENGTH: Take advantage of the 18-inch stride length on this home use elliptical. As you engage with the belt-drive mechanism, the sturdy oversized footplates will glide along the sturdy track. TRANSPORTATION WHEELS: This indoor elliptical is not bound to one room after setup. Use the front-loaded transportation wheels to move this machine across several home surfaces. DEVICE HOLDER: Be in control of your workout entertainment with the onboard smart device holder. Place your favorite smartphone or tablet on the holder as you exercise.