The T631 Treadmill has 4.0 hp ECO-POWR™ motor that utilizes 32% less energy without affecting power. It also features WFI-Firefighter's Wellness Fitness Initiative protocol programming. CardioAdvisor™ shows heart rate goals and date. It also has a big 22" x 61" running surface. It shows both telemetry and contact heart rate and is compatible with an entertainment bracket.