We compare the LifeSpan TR4000i Folding Treadmill vs Endurance TF3i Folding Treadmill side by side in depth, here is the comparison table.

LifeSpan TR4000i Folding Treadmill
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Endurance TF3i Folding Treadmill
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Spec Comparison of LifeSpan TR4000i Folding Treadmill and Endurance TF3i Folding Treadmill
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Our rating:  |
Our rating:  |
Type |
Treadmill |
Treadmill |
Max User Weight |
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350 lbs
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275 lbs
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Motor HP |
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3.25 HP
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2.2 HP
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Incline |
0 – 15% |
0 – 12% |
Decline |
– |
– |
Deck/Running Area |
20″ x 60″ |
18″x 50″ |
Speed Range |
- Min Speed 0.5 mph
- Max Speed 12 mph
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- Min Speed 0 mph
- Max Speed 12 mph
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Folding |
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Programs |
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17
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–
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Heart Rate Monitor |
My Zone Heart Rate (2 Programs) |
Contact heart rate monitor |
Dimensions |
74.5″ x 32″ x 56″ |
69″ x 32″ x 55″ |
Display and Controls |
Blue Backlit LCD |
3-Window LED and running |
Speakers |
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Cooling Fans |
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Warranty |
- Labor Warranty: 2 Years
- Parts Warranty: 5 Years
- Motor Warranty: Lifetime
- Frame Warranty: Lifetime
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- Labor Warranty: 1Years
- Parts Warranty: Lifetime
- Motor Warranty: Lifetime
- Frame Warranty: Lifetime
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A Video About LifeSpan TR4000i Folding Treadmill
A Video About Endurance TF3i Folding Treadmill