If you made some research and have narrowed down your treadmill purchase options to the ProForm 905 CST or ProForm Performance 800i, let’s take a look at what you get with both treadmills. Before going into more detail, here are the most important things you need to know about these two treadmills.
Motor Power: The motor on the 905 CST is a 3.0 CHP motor, while the ProForm Performance 800i has a slightly smaller 2.75 CHP motor.
Maximum Speed: Both treadmills have a top speed of 12 MPH.
Running Area: The belt areas of the 905 CST and Smart Performance 800i are 20″ X 60″ and 18″ X 60″.
ProForm 905 CST |
ProForm Smart Performance 800i |
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Here we list all available specs side by side so you can decide which one of these treadmills would be a suitable choice for you.
ProForm 905 CST vs ProForm Performance 800i Specs Table
| Max User Weight Capacity ?The maximum user weight that the treadmill can handle. | |
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| Motor Power ?How strong is the motor? We recommend at least a 2.25 HP motor for home use. | |
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| Maximum Speed ?Maximum speeds in miles per hour. | |
| 12 MPH | 12 MPH |
| Incline | |
| 0-to-12% | -2-to-10% |
| Decline | |
| Folding | |
| Running Area (Belt Size) | |
| 20″ X 60″ | 18″ X 60″ |
| Number of Programs | |
| 30 | 50 |
| Heart Rate Monitor | |
| Bluetooth chest strap and EKG grip pulse | EKG Grip Pulse Sensor |
| Wireless Heart Rate Monitor | |
| Cooling Fan | |
| Bluetooth | |
| Display | |
| 5″ backlit iFit display | 14″ Smart HD Touchscreen |
| Web Browser | |
| Touchscreen | |
| Audio | |
| iFit Coach Compatible | |
| Tablet holder | |
| Warranty | |
| Lifetime frame and motor 3-year parts and 1-Year labor warranty | Lifetime frame and motor 3-year parts 1-Years labors warranty |
| See Price at Amazon | See Price at Amazon |
Display and User Interface Comparison
The ProForm 905 CST has a 5″ backlit iFit display and the ProForm Performance 800i has a 14″ Smart HD Touchscreen. The Smart Performance 800i has a touchscreen which is great while the 905 CST has buttons for controlling the treadmill, so browsing the menus is not as intuitive as the Smart Performance 800i. We think the bigger screen size of the Smart Performance 800i is a plus. 
Built in Programs
The Smart Performance 800i has 20 more programs, 50 vs 30. Both treadmills are iFit Coach Compatible so you can get many different workout options.
Bottom Line
We gave the ProForm Performance 800i a rating of 95 over 100 while we gave 80 for the 905 CST because, the Smart Performance 800i has a touch screen, larger screen, more programs, decline control, and a good price for the features you get.
