Sole F63 vs Sole TT8

Each cell is that model’s published text. A blank in the source stays “Not published by manufacturer.”

Spec	Sole F63	Sole TT8
Running surface	20" × 60" running surface. Deck 18 mm (0.7 inch). Belt 2-ply, 1.6 mm. Source	22" × 60" running surface. Deck 25 mm (0.98 inch), described as waxed, no lubrication, reversible. Belt 2-ply, 1.6 mm. Source
Motor	3.0 HP Source	4.0 HP Source
Maximum user weight	325 lb Source	400 lb Source
Unfolded dimensions	75" L × 34" W × 52" H Source	81" × 38" × 66" Source
Folded dimensions	42" L × 34" W × 71" H Source	Not published by manufacturer Source
Step-up height	Not published by manufacturer Source	Not published by manufacturer Source
Power	120-volt, 15-amp grounded outlet, with only the treadmill plugged into the circuit Source	Not published by manufacturer Source
Incline	0–15% on the product feature card. Full specifications list elevation as 0–15 levels. Source	−6 to 15 levels Source
Speed	0.5–12 mph Source	0.5–12 mph Source
Machine weight	187 lb unit weight Source	319 lb unit weight Source