We compare the Nautilus T618 Treadmill vs ProForm Performance 1800i Treadmill side by side in depth, here is the comparison table.

Nautilus T618 Treadmill
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ProForm Performance 1800i Treadmill
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Spec Comparison of Nautilus T618 Treadmill and ProForm Performance 1800i 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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300 lbs
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Motor HP |
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3.5 HP
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3.5 HP
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Incline |
0 – 15% |
0 – 15% |
Decline |
– |
0-3% |
Deck/Running Area |
20″ x 60″ |
22″ x 60″ |
Speed Range |
- Min Speed 0 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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26
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32
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Heart Rate Monitor |
Contact Grips |
- EKG grip Pulse
- Wireless chest strap
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Dimensions |
86″ x 33″ x 13″ |
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Display and Controls |
Basic LED Display |
7″ Backlit Display |
Speakers |
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– |
Cooling Fans |
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Warranty |
- Labor Warranty: 2 Years
- Parts Warranty: 5 Years
- Motor Warranty:15 Years
- Frame Warranty: 15 Years
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- Labor Warranty: 2 Years
- Parts Warranty: 5 Years
- Motor Warranty: Lifetime
- Frame Warranty: Lifetime
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