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|ProForm Boston Marathon 4.0||Nordictrack Incline Trainer X9i|
|Motor Size||4.25CHP||3.0 CHP|
|Running Area||20” x 62”||22” x 60”|
|Weight Capacity||400 lbs||300 lbs|
|Footprint In Use (W,L,H)||37" x 64" x 74"||39.6" x 70.2" x 71.6"|
|Footprint Folded (W,L,H)||N/A||N/A|
|Incline Range||-6% to 20%||-6% to 40%|
|Max Speed||15 MPH||12 MPH|
|Treadmill Best For||Joggers, Runners||Walkers, Joggers, Runners|
|Display||10” touchscreen||7” HD touchscreen|
|PreInstalled Workout Apps||Marathon training programs||44|
|Heart Rate Monitoring||Wireless chest strap||Grip pulse, chest strap|
|Water bottle cubbies||No||2|
|Device holder||No||Same as water cubbies|
|Warranties||Lifetime for frame, deck, and motor, 6 years on parts and electronics, 3 years on labor||Lifetime for frame, motor and deck, 5-year parts and electronics, 2-year labor|
|Belt||2-ply commercial belt||2-ply|
|Roller Size||2.5” front and back||2.5” front and back|
|Cushioning||Runners Flex™ Impact Control||Reflex™ Cushioning|
|Customer Support||As this treadmill is discontinued, the customer service is not through ProForm. Support will depend on the third-party company you purchase from||You can file an online support request, call the NordicTrack customer support line, or chat with a 24-hour representative online|
|Return Policy||Depending on where you purchase this discontinues treadmill, you will be subject to their return policy||30-day money back guarantee with a 10% restocking fee|
Which is better? Comparison of ProForm Boston Marathon 4.0 VS Nordictrack Incline Trainer X9i treadmills. Compare the characteristics of each product and make your choice. Below you can see the most important specifications that you should check before purchase.