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|NordicTrack X22i Incline||ProForm Boston Marathon 4.0|
|Motor Size||4.25 CHP||4.25CHP|
|Running Area||22” x 60”||20” x 62”|
|Weight Capacity||300 lbs||400 lbs|
|Footprint In Use (W,L,H)||39.6" x 70.2" x 71.6"||37" x 64" x 74"|
|Footprint Folded (W,L,H)||N/A|
|Incline Range||-6% to 40%||-6% to 20%|
|Max Speed||12 MPH||15 MPH|
|Treadmill Best For||Walkers, Joggers, Runners||Joggers, Runners|
|Display||22” HD touchscreen||10” touchscreen|
|PreInstalled Workout Apps||44||Marathon training programs|
|Heart Rate Monitoring||EKG handlebar grips, chest strap||Wireless chest strap|
|Water bottle cubbies||Yes||No|
|Warranties||Lifetime frame, deck, and motor, 6-year electronics and parts, 3-year labor||Lifetime for frame, deck, and motor, 6 years on parts and electronics, 3 years on labor|
|Belt||2-ply, commercial non-stretch||2-ply commercial belt|
|Roller Size||2.5”||2.5” front and back|
|Cushioning||Reflex™ Cushioning||Runners Flex™ Impact Control|
|Customer Support||Phone, email, live chat||As this treadmill is discontinued, the customer service is not through ProForm. Support will depend on the third-party company you purchase from|
|Return Policy||30-day money-back||Depending on where you purchase this discontinues treadmill, you will be subject to their return policy|
Which is better? Comparison of NordicTrack X22i Incline VS ProForm Boston Marathon 4.0 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.