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 ModelT631T621T611
 MSRP$5,299$4,199$2,999
 Dimensions83.5" x 38.6" x 56.3"83.5" x 38.6" x 56.3"77.5" x 38" x 53"
 Unit Weight297 lbs.297 lbs.229 lbs.
 Motor4.0 hp AC Servo3.2 hp DC3.0 hp DC
 Running Surface22" x 61"22" x 61"20" x 58"
 Speed Range0.1 - 12 mph0.1 - 12 mph0.1 - 12 mph
 SafeStart™YesYesYes
 Incline Range0 - 15%0 - 15%0-15%
 Deck CushioningMyFlex™MyFlex™MyFlex™
 Programs3 Interval (1:1, 1:2, 2:2), Random (x10,000), 2 Glute (30-min. and 45-min.), 3 Hill, HRC Cardio, HRC Weight Loss, Quick Start, Manual/Track, Zone Trainer, Fitness Tests (Bruce, Gerkin, WFI, Army, Marines)Programmable Interval, Random (x10,000), 2 Glute (30-min. and 45-min.), 3 Hill, HRC Cardio, HRC Weight Loss, Quick Start, Manual/Track, ZoneTrainer™Programmable Interval, Random (x10,000), 2 Glute (30-min. and 45-min.), 3 Hill, HRC Cardio, HRC Weight Loss, Quick Start, Manual/Track, ZoneTrainer™
 Touch-N-Go™ ProgramsYesYesYes
 DisplayDot matrix and LEDsDot matrix and LEDsTri-color dot matrix and LEDs
 Water Bottle HolderYesYesYes
 ActivZone™YesYesYes
 Data ReadoutsCalories, Calories per Hour, Speed, METs, Time, Distance, Pace and Incline, Heart Rate, Wt Loss and Cardio Target HRCalories, Calories per Hour, Speed, METs, Time, Distance, Pace and Incline, Heart Rate, Wt Loss and Cardio Target HRCalories, Distance, Speed, Incline, Time, Calories per hour, METs, Pace, Heart Rate, Wt Loss Target HR, Cardio Target HR
 CardioAdvisor™YesYesYes
 Telemetry Heart RateYesYesYes
 Contact Heart RateYesYesNo
 Max User Weight450 lbs.400 lbs.400 lbs.
 Entertainment Bracket CompatibleYesYesYes
 Residential Parts WarrantyLifetime frame, motor and mechanical parts, 7 years electronicLifetime frame and motor, 10 years mechanical parts, 5 years electronicsLifetime frame and motor, 10 years mechanical parts, 5 years electronics
 Residential Labor Warranty1 year1 year1 year
 Suggested Commercial Usage6 hours max per day, no fees facility4 hours max per day, no fees facility 4 hours max per day, no fees facility
 Commercial Parts WarrantyLifetime frame, lifetime motor, 5 years partsLifetime frame, 5 years partsLifetime frame, 5 years parts
 Commercial Labor Warranty1 year1 year1 year
 USBYesNoNo
 FlowTec™ MotorYesYesPartial
 CertificationsCONFORMS TO ANSI/UL 1647 2010 & CAN/CSA C22.2 No 68-09 2010; FCC part 18 OKCONFORMS TO ANSI/UL 1647 2008 & CAN/CSA C22.2 No 68-09 2010; FCC part 18 OKCONFORMS TO ANSI/UL 1647 2008 & CAN/CSA C22.2 No 68-09 2010; FCC part 18 OK
 Power RequirementsDedicated Power Supply Required (N. Amer.): 120 VAC, 60 Hz, 15A, 1800W; Plug: UL NEMA 5-15; Cord: 14 AWG CSA-approved; Fuse: 15A (6x30mm), 100-120V, Fast blowDedicated Power Supply Required (N. Amer.): 120 VAC, 60 Hz, 15A, 1800W; Plug: UL NEMA 5-15; Cord: 14 AWG CSA-approved; Fuse: 15A (6x30mm), 100-120V, Fast blowDedicated Power Supply Required (N. Amer.): 120 VAC, 60 Hz, 12A, 1440W; Plug: UL NEMA 5-15; Cord: 14 AWG CSA-approved; Fuse: 12A (6x30mm), 100-120V, Fast blow