Best without membership
Sole F63
FitScore for Folding Treadmills
- Motor3 HP brushless
- Running Surface20 × 60 in
- Weight Capacity325 lb
- Incline0–15%
Choose it if you want 15% incline, a lifetime motor warranty and no membership.
Best for iFIT classes
ProForm Carbon TLX
FitScore for Folding Treadmills
- Motor3 HP
- Running Surface20 × 60 in
- Weight Capacity300 lb
- Incline0–12%
Choose it if you will train with iFIT classes that control the treadmill.
Overall winner for a folding treadmill: Sole F63, by a single point. It climbs higher, carries more weight, folds into a shorter footprint and backs the frame and motor for life, with no membership needed. The ProForm Carbon TLX is the better pick if you want iFIT trainers to run your workouts and a lighter-feeling, cushioned deck.
Sole F63 wins 2 rounds- ProForm Carbon TLX wins 0 rounds
- =3 ties
Product photos from Amazon. FitScore weights are explained below.
ProForm Carbon TLX vs Sole F63: The ProForm Carbon TLX and Sole F63 are full-size folding treadmills with the same essentials: a 3 HP motor, 12 mph, a 20 × 60-inch deck and a hydraulic-assist fold. They take different routes from there. The TLX is built around iFIT, with a 7-inch LCD, ProShox cushioning and automatic speed and incline control in classes; the F63 climbs to 15%, works on its own built-in programs with the free SOLE+ app, is rated for 325 lb and carries a lifetime frame and motor warranty.
In our best folding treadmill guide, the F63 ranks #3 and the TLX #4. The F63 also ranks #2 in our best treadmill 300 lb capacity guide; the TLX ranks #2 in our best treadmill under $1,000 guide. For more detail, read our Sole F63 review and ProForm Carbon TLX review.
Head-to-Head Specs
Here are the two models side by side, from their Amazon US listings and Sole’s warranty page. A check mark shows the stronger spec on each line. Before you order either model, search the CPSC recall database: the U.S. Consumer Product Safety Commission lists treadmill recalls and the fix offered. The American Heart Association recommends at least 150 minutes of moderate or 75 minutes of vigorous aerobic activity a week. If you train for road races, a 1996 study of trained runners found that a 1% incline best matched the energy cost of outdoor running at about 6.5 to 11 mph.
| Specification | Sole F63FitScore 75.8 | ProForm Carbon TLXFitScore 74.8 |
|---|---|---|
| Motor | 3 HP brushless | 3 HP |
| Speed | 0.5–12 mph | 0–12 mph |
| Incline | 0–15%✓ | 0–12% |
| Running Surface | 20 × 60 in | 20 × 60 in |
| Cushioning | 18 mm cushioned deck | ProShox |
| Weight Capacity | 325 lb✓ | 300 lb |
| Console | 4-window LED, hand-grip dials | 7-in LCD, one-touch buttons✓ |
| Programs and Apps | 10 preset, 2 user, 2 heart rate; free SOLE+ app | iFIT (Train membership for classes) |
| Assembled Size | 75 × 34 × 52 in | 73.2 × 34.6 × 57.6 in✓ |
| Folded Size | 42 × 34 × 71 in | 36.7 × 34.6 × 68.5 in✓ |
| Product Weight | About 187 lb✓ | About 221 lb |
| Warranty | Lifetime frame and motor, 2-yr parts, 1-yr labor✓ | 10-yr frame, 1-yr motor, parts and labor |
| Specs won | 4 of 12 | 3 of 12 |
Check Amazon for current pricing and availability.
FitScore Duel
Both scores are the official ones from our best folding treadmill guide: practicality 50%, durability 15%, and performance, comfort and affordability 10% each, with features at 5%. A folding treadmill has to fold, roll and store easily, so practicality counts most. The two are close on practicality (75 for the F63, 73 for the TLX); the F63 then gains on performance, durability and features thanks to its incline, weight rating and warranty, while the TLX scores higher on comfort and affordability. The result is a one-point gap, 75.8 to 74.8.
Key Differences
- The F63 climbs to 15% incline; the TLX to 12%.
- The F63 runs its own 14 programs with the free SOLE+ app; the TLX is built around iFIT and needs a Train membership for classes.
- The F63 is rated for 325 lb, the TLX for 300 lb.
- The F63 is about 34 lb lighter; the TLX folds into a shorter depth (36.7 against 42 inches).
- The F63 covers the frame and motor for life; the TLX lists 10 years on the frame and 1 year on the motor.
Round 1 of 5
ProForm Carbon TLX vs Sole F63: Motor, Speed and Incline
Sole F63 wins this round
Both list a 3 HP motor and 12 mph, enough for walks, tempo jogs and steady runs. The F63’s motor is brushless, and it climbs to 15% against 12% on the TLX.
Testers of the 2026 F63 noticed slight shaking at high speed on a steep incline, and testers of the TLX found it steady at speed but its incline motor noisy when it adjusts. For hill walking, the extra 3% on the F63 is the bigger difference.
Round 2 of 5
Running Deck and Cushioning
Tie. Neither model has a clear edge here.
Both have a 20 × 60-inch deck, long enough for running and wide enough for most users. The F63 lists an 18 mm cushioned deck; the TLX uses ProShox cushioning.
Testers found the F63 roomy and comfortable for runners up to about 6 feet. Opinions on the TLX are split: one tester found ProShox comfortable and middle-of-the-road, another felt little benefit from it.
Round 3 of 5
Console, Programs and Apps
Tie. Neither model has a clear edge here.
The TLX is designed for iFIT: with a Train membership, trainers change speed and incline for you, and the 7-inch LCD shows your stats beside a device shelf. Testers note it has to be unlocked through the iFIT app even without a membership.
The F63 works on its own, with 10 preset, 2 user and 2 heart rate programs, dials in the hand grips and the optional free SOLE+ app. Testers call its LED console functional rather than modern, with weak fans, and owners of earlier generations say Bluetooth pairing with apps can be hit or miss.
Round 4 of 5
Footprint and Folding
Tie. Neither model has a clear edge here.
Assembled, the two take a similar footprint: about 75 × 34 inches for the F63 and 73.2 × 34.6 inches for the TLX. Folded, the TLX is shorter at about 36.7 inches deep against 42 inches, and both stand roughly 5.5 to 6 feet tall.
Both fold with hydraulic assist and roll on wheels. The F63 is lighter at about 187 lb against 221 lb, which helps when you move it; testers describe both frames as heavy.
Round 5 of 5
Build, Weight Rating and Warranty
Sole F63 wins this round
The F63 is rated for 325 lb against 300 lb for the TLX, and testers counted its warranty among its strengths. Testers see the TLX as a strong-value folding treadmill held back by a short 1-year parts warranty.
Sole covers the F63’s frame and motor for life, with 2 years on parts and 1 year on labor. ProForm lists 10 years on the TLX’s frame and 1 year on the motor, parts and labor.
Who Should Buy Each
Walkers who climb and want no membership
Choose the Sole F63 for 15% incline, a 325-lb rating, built-in programs and lifetime frame and motor coverage.
iFIT class fans
Choose the ProForm Carbon TLX for iFIT trainers that control speed and incline, a 7-inch LCD and a shorter fold.
Consider Instead
If you like the F63 but want a touchscreen, the Sole F80 adds one with the same 15% incline; see our Sole F63 vs F80 comparison. For a smaller iFIT option, read our ProForm Carbon TL vs TLX comparison, or browse the full field in our best folding treadmill guide.
Final Verdict
The Sole F63 is the slightly better folding treadmill: 15% incline, a 325-lb rating, built-in programs that need no membership and lifetime frame and motor coverage. Choose the ProForm Carbon TLX if you will train with iFIT and want trainers to run the treadmill for you; it folds a little shorter but backs the motor for 1 year.
Sole F63 vs ProForm Carbon TLX FAQ
By a small margin for a folding treadmill: it scores 75.8 against 74.8, with more incline, a higher weight rating and a lifetime frame and motor warranty. The TLX is better if you want iFIT classes.
The F63 climbs to 15%, is rated for 325 lb, runs built-in programs and covers the frame and motor for life. The TLX climbs to 12%, is rated for 300 lb and is built around iFIT with a 7-inch LCD.
Yes. Both have a 20 × 60-inch running surface.
The TLX needs an iFIT Train membership for classes and smart features, and testers found it must be unlocked through the iFIT app. The F63 works without one and pairs with the free SOLE+ app.
The TLX folds to about 36.7 inches deep against 42 inches for the F63. Both stand roughly 5.5 to 6 feet tall when folded.
The Sole F63, at 325 lb against 300 lb for the TLX.
The Sole F63: lifetime frame and motor, 2 years on parts and 1 year on labor. The TLX lists 10 years on the frame and 1 year on the motor, parts and labor.
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