The Key features of the X3i include the Life Fitness interactive display, and Zone Training Workouts, which are controlled by the user's target heart rate.
Drive System: Rear Drive (Belt/Alternator)
Resistance System: MagnaForce Braking System
Stride Technology: Comfort Stride
Stride Length: 20"
Resistance Range: 20 Levels
Display Type: LED
Profile (Workout Intensity Chart): 10" x 14" LED Window
Number of Workout Programs: 12
Contact / Touch Heart Rate Monitoring: Yes
Wireless / Telemetry Heart Rate Monitoring : Yes
Accessory Tray For Books/Tablets: Yes
Power Requirements: Standard AC Plug-in
Dimensions: 77" L x 27" W x 62" H
Weight: 204 lbs
Max User Weight: 350 lbs