In this review, we will be comparing the F85 and the TT8 from Sole. Before going into more detail, here are some keypoints about these two treadmills.
Motor Power: Both treadmills have a 4.0 CHP motor.
Maximum Speed: Both treadmills have a top speed of 12 MPH.
Running Area: Both the F85 and TT8 have same treadmill belt size: 22″ X 60″.

Sole F85	Sole TT8

Here we list all available specs side by side so you can see which one of these treadmills would be a better choice for you.

Sole F85 vs Sole TT8 Specs Table

Max User Weight Capacity ?The maximum user weight that the treadmill can handle.
400 LBS	425 LBS
Motor Power ?How strong is the motor? We recommend at least a 2.25 HP motor for home use.
4.0 CHP	4.0 CHP
Maximum Speed ?Maximum speeds in miles per hour.
12 MPH	12 MPH
Incline
0-to-15%	0-to-15%
Decline
	6 levels of decline
Folding
Running Area (Belt Size)
22″ X 60″	22″ X 60″
Number of Programs
10	10
Heart Rate Monitor
Pulse grip and chest strap heart rate monitoring	Pulse grip and chest strap heart rate monitoring
Wireless Heart Rate Monitor
Cooling Fan
Bluetooth
Display
9-inch LCD workout display	10.1″ TFT LCD display
Web Browser
Touchscreen
Audio
MP3-compatible sound system	MP3-compatible sound system
iFit Coach Compatible
Tablet holder
Warranty
Lifetime on frame, motor, and deck. Five years on electronics, and two years on labor	Home usage warranties: Lifetime on frame, motor, and deck. Five years on electronics, and two years on labor
See Price at Amazon	See Price at Amazon

Display and User Interface Comparison

The Sole F85 has a 9-inch LCD workout display and the Sole TT8 has a 10.1″ TFT LCD display. We think the bigger display size of the TT8 is a plus.

Built in Programs

Both the F85 and TT8 has 10 workout programs.

Bottom Line

We gave the Sole TT8 a rating of 95 over 100 while we gave 90 for the F85 because, the TT8 has more user weight capacity, bigger screen, decline control, and a good price for the features you get.