Life Fitness E3 Track and Cross-Trainer, Titanium Whisper Stride technology utilizes maintenance-free ball bearings, which eliminates noise and friction common with other cross-trainers Multigrip handles, with integrated resistance controls for on-the-fly adjustments and contact heart rate sensors for workout monitoring Coach Zone leads exercisers through motivating workouts that target different muscle groups Compatible with Apple and Android devices; Interacts with apps for added engagement and entertainment Frame: Lifetime; Electrical and Mechanical parts: 5 year; Console: 3 year; Labor: 1 year; Warranties outside the U.S. may vary