Best Overall
Horizon 7.4 AT
A published 3.5 CHP motor, 22 × 60 in deck and no subscription required
Folding motorised · 3.5 CHP (continuous duty) · 22 × 60 in
8.2 / 10 LiftEvidence score
Best Treadmills
A treadmill is a long-term purchase you will use hundreds of times, and the most important specifications — continuous motor rating and deck size — are often the least clearly published. A large screen does not make a better treadmill.
We compared eight treadmills sold on Amazon.com, from a fully assembled compact machine to full-size running treadmills and a curved manual model. Where a manufacturer does not publish a motor or deck figure, we say so. Customer notes summarise recurring review themes — reliability is mixed across almost every brand — and the LiftEvidence score is our weighted editorial assessment.
By the LiftEvidence editorial team · Updated October 7, 2026 · 8 products compared · Affiliate disclosure
Quick answer
For serious running at home, the Horizon 7.4 AT is the best buy: a published 3.5 CHP continuous motor, a 22 × 60 in deck, 15% incline and no required subscription. The ProForm Carbon TLX is the value pick with 12 mph and 12% incline under $900, and the NordicTrack Commercial 1750 adds decline for incline-and-hill training if you will use iFIT.
For walking in a small room, the fully assembled Sunny treadmill is the budget choice; for sprints and intervals, the SB Fitness CT400 curved manual treadmill has no top speed and needs no power.
Options by use case
For serious running
12 mph treadmills with running-length decks. The 7.4 AT is the only one with a published continuous motor rating and a 22 in deck; the ProForm has the strongest owner feedback for its price; the 7.0 AT works with apps you already use.
Horizon 7.4 AT · ProForm Carbon TLX · Horizon 7.0 AT
Compare side by sideFor incline walking and hills
Wide incline ranges, with decline on the NordicTrack Commercial and the Sunny Excel. The T 6.5 S is the entry-level option.
NordicTrack Commercial 1750 · Sunny Excel Smart · NordicTrack T 6.5 S
Compare side by sideFor small rooms and sprints
A compact, fully assembled walking treadmill and a self-powered curved treadmill for intervals.
Sunny Fully Assembled · SB Fitness CT400
Compare side by side
Top picks
Editorial picks for specific needs, based on the specifications and trade-offs recorded below. A label is given only where a product clearly earns it.
Best for Incline & Decline
NordicTrack Commercial 1750
A −3% to 12% incline range, 12 mph and a 16 in touchscreen
Folding motorised · Not reliably published · Not reliably published
7.6 / 10 LiftEvidence score
Best Value
ProForm Carbon TLX
12 mph and 12% incline with strong owner feedback, under $900
Folding motorised · Not reliably published · Not reliably published
7.7 / 10 LiftEvidence score
Best Budget
Sunny Fully Assembled
Arrives assembled, folds flat and adds 15% incline for under $600
Compact / walking · 2.5 HP brushless · 20 × 53 in
6.5 / 10 LiftEvidence score
Best Manual Curved
SB Fitness CT400
A self-powered curved treadmill with no top speed, for sprints and HIIT
Manual curved · None (self-powered) · Not reliably published
7.2 / 10 LiftEvidence score
All treadmills
Showing 8 of 8. Add up to 4 to a comparison.
Best Overall
Horizon 7.4 AT
A published 3.5 CHP motor, 22 × 60 in deck and no subscription required
8.2
- Type
- Folding motorised
- Motor
- 3.5 CHP (continuous duty)
Best for Incline & Decline
NordicTrack Commercial 1750
A −3% to 12% incline range, 12 mph and a 16 in touchscreen
7.6
- Type
- Folding motorised
- Motor
- Not reliably published
Best Value
ProForm Carbon TLX
12 mph and 12% incline with strong owner feedback, under $900
7.7
- Type
- Folding motorised
- Motor
- Not reliably published
Horizon 7.0 AT
Works with Zwift, Peloton and Strava apps — no proprietary subscription
7.3
- Type
- Folding motorised
- Motor
- Not reliably published
Sunny Excel Smart
−5% to 12% incline, 12 mph and a 20 in deck for under $900
7.2
- Type
- Folding motorised
- Motor
- 4 HP peak
NordicTrack T 6.5 S
An established folding treadmill with 10% incline for around $600
6.9
- Type
- Folding motorised
- Motor
- Not reliably published
Best Budget
Sunny Fully Assembled
Arrives assembled, folds flat and adds 15% incline for under $600
6.5
- Type
- Compact / walking
- Motor
- 2.5 HP brushless
Best Manual Curved
SB Fitness CT400
A self-powered curved treadmill with no top speed, for sprints and HIIT
7.2
- Type
- Manual curved
- Motor
- None (self-powered)
All treadmills compared
The same criteria for every product. A dash means the information was not published or could not be confirmed. Scores are editorial assessments, not measurements.
| 8 products | Check price on Amazon → | Check price on Amazon → | Check price on Amazon → | Check price on Amazon → | Check price on Amazon → | Check price on Amazon → | Check price on Amazon → | Check price on Amazon → |
|---|---|---|---|---|---|---|---|---|
| Editorial summary (LiftEvidence) | ||||||||
| LiftEvidence score | 8.2 / 10 (highest) | 7.6 / 10 | 7.7 / 10 | 7.3 / 10 | 7.2 / 10 | 6.9 / 10 | 6.5 / 10 | 7.2 / 10 |
| Recommendation | Best Overall | Best for Incline & Decline | Best Value | — | — | — | Best Budget | Best Manual Curved |
| Best suited to | Serious Running, Incline Walking, Heavier Users | Incline Walking, Serious Running, Sprints & HIIT | Serious Running, Walking, Incline Walking | Serious Running, Walking | Incline Walking, Walking, Budget | Walking, Incline Walking, Budget | Walking, Incline Walking, Small Spaces, Budget | Sprints & HIIT, Serious Running |
| Running | Excellent | Excellent | Good | Good | Good | Moderate | Limited | Good |
| Specifications (manufacturer) | ||||||||
| Type | Folding motorised | Folding motorised | Folding motorised | Folding motorised | Folding motorised | Folding motorised | Compact / walking | Manual curved |
| Motor | 3.5 CHP (continuous duty) | Not reliably published | Not reliably published | Not reliably published | 4 HP peak (Continuous-duty rating not published) | Not reliably published | 2.5 HP brushless (Peak vs continuous not stated) | None (self-powered) |
| Top speed | 12 mph | 12 mph | 12 mph | 12 mph | 12 mph | 10 mph | 10 mph | — |
| Incline | 0–15% | 0–12% | 0–12% | Not reliably published | To 12% | 0–10% | To 15% | None |
| Decline | None | To −3% | None | — | To −5% (up to 5 mph) | None | None | None |
| Running deck | 22 × 60 in | Not reliably published | Not reliably published | 20 × 60 in | 20 × 55 in | Not reliably published | 20 × 53 in | Not reliably published |
| Cushioning | 3-zone Variable Response | RunFlex | ProShox | 3-zone Variable Response | Double-deck shock absorption | KeyFlex | Double-deck shock absorption | Flexible track slats |
| User capacity | 350 lb | — | — | — | 350 lb | — | 300 lb | — |
| Folds | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Dimensions | 76 × 37 × 63 in (L × W × H) | 80 × 36 × 65 in (L × W × H) | 74.3 × 35.1 × 59.1 in (L × W × H) | 76 × 35 × 66 in (L × W × H) | 67.7 × 32.9 × 55.1 in (L × W × H) | 73.5 × 36 × 54 in (L × W × H) | 63.8 × 30.9 × 44.1 in (L × W × H) | 72 × 31 × 62 in (L × W × H) |
| Warranty | — | — | — | — | — | — | — | — |
| Price & customer ratings (Amazon) | ||||||||
| Price band | Premium | High-end | Mid-range | Mid-range | Mid-range | Budget | Budget | Premium |
| Amazon customer rating | 4.1/5 (197 ratings) | 3.9/5 (392 ratings) | 4.4/5 (242 ratings) | 4.1/5 (151 ratings) | 4.4/5 (1,825 ratings) | 4.3/5 (32,299 ratings) | 4.4/5 (6,360 ratings) | 4.3/5 (60 ratings) |
| Editorial assessment (LiftEvidence) | ||||||||
| Less suitable for | Small rooms, upstairs gyms where weight matters, or buyers who want a built-in touchscreen class library. | Buyers who do not want a subscription, or who want published motor and deck figures before paying premium prices. | Buyers who need a published continuous motor rating or the widest deck. | Buyers who need published motor and incline specifications. | Fast running on a long stride — the deck is 55 in — or buyers who need a continuous motor rating. | Regular running above 10 mph or tall runners with a long stride. | Running, sprinting or users over 300 lb. | Long, easy runs or incline walking — curved treadmills are hard work at every pace. |
| Strengths |
|
|
|
|
|
|
|
|
| Drawbacks |
|
|
|
|
|
|
|
|
| Running performance score | 9.0 / 10 (highest) | 8.5 / 10 | 8.0 / 10 | 7.5 / 10 | 7.5 / 10 | 6.5 / 10 | 5.5 / 10 | 8.0 / 10 |
| Build & durability score | 8.0 / 10 (highest) | 7.5 / 10 | 8.0 / 10 (highest) | 7.0 / 10 | 7.0 / 10 | 7.0 / 10 | 6.0 / 10 | 8.0 / 10 (highest) |
| Deck & cushioning score | 9.0 / 10 (highest) | 7.5 / 10 | 7.0 / 10 | 8.0 / 10 | 6.5 / 10 | 6.5 / 10 | 6.0 / 10 | 6.5 / 10 |
| Training features score | 7.5 / 10 | 9.0 / 10 (highest) | 7.5 / 10 | 7.5 / 10 | 8.0 / 10 | 7.0 / 10 | 7.0 / 10 | 5.0 / 10 |
| Home practicality score | 6.5 / 10 | 6.5 / 10 | 7.0 / 10 | 6.5 / 10 | 7.0 / 10 | 7.5 / 10 | 9.0 / 10 (highest) | 8.0 / 10 |
| Warranty & support score | 7.5 / 10 (highest) | 6.5 / 10 | 6.5 / 10 | 7.0 / 10 | 6.0 / 10 | 6.5 / 10 | 6.0 / 10 | 6.0 / 10 |
| Value score | 8.0 / 10 | 6.5 / 10 | 9.0 / 10 (highest) | 7.5 / 10 | 8.5 / 10 | 8.0 / 10 | 8.5 / 10 | 7.0 / 10 |
Buying guide
What matters most
Continuous motor rating, not peak
Continuous-duty horsepower (CHP) tells you what the motor sustains; “peak HP” does not. For regular running, look for around 3 CHP or more. Several brands publish neither on Amazon.
Deck size for your stride
Runners need about 20 × 60 in (22 in is roomier); walkers can manage with 20 × 50–55 in. A short deck limits your stride at speed.
Incline and decline
Incline walking is one of the most useful features for home cardio. Decline is rarer and useful for downhill training. Check how fast the incline responds.
Subscriptions
Many smart treadmills put auto-adjusting workouts behind a monthly membership. Some work with third-party apps instead. Factor the subscription into the real cost.
Reliability is mixed everywhere
Belt, motor and console failures appear in reviews of almost every home treadmill. Warranty terms, local service and a published motor rating matter more than a screen.
Motor: continuous vs peak horsepower
Continuous-duty horsepower (CHP) is the power a motor can sustain; peak horsepower is a brief maximum that says little about running performance. A higher CHP motor runs cooler and copes better with heavier users and long runs.
Many treadmills on Amazon do not publish a continuous rating at all. We treat that as missing information rather than assuming a figure.
Related: Horizon 7.4 AT · Sunny Excel Smart
Running deck size
Length matters most for running: 60 in suits most runners; taller or faster runners appreciate more. Width of 20 in is standard, 22 in feels roomier. Walkers can use shorter decks of 50–55 in.
Speed, incline and decline
Most runners never need more than 10–12 mph. Incline is more useful: walking uphill raises intensity without running impact. Decline is rare and useful mainly for downhill training. Check whether incline changes are quick — slow motors make interval sessions frustrating.
Related: NordicTrack Commercial 1750
Cushioning and running surface
Cushioning systems soften impact compared with concrete, and some can be adjusted. They are hard to compare across brands because few publish measurable data. A stable deck that does not bounce excessively matters as much as softness.
Screens and subscriptions
Built-in touchscreens often depend on a monthly membership for classes, streaming and auto-adjusting workouts. That can be good value if you use it — but it is an ongoing cost. Treadmills that connect to third-party apps or need no subscription keep the long-term cost down.
Related: Horizon 7.0 AT
Curved manual treadmills
Curved treadmills are powered by you: move to the front to speed up, drift back to slow down. They respond instantly, which is ideal for sprints and intervals, and need no electricity. Steady running feels harder than on a motorised belt.
Related: SB Fitness CT400
Space, weight and power
Allow clearance behind the treadmill (around 6–8 ft is often recommended) and check ceiling height for tall runners on incline. Full-size treadmills weigh 250–320 lb and may need a dedicated circuit; check the manual before buying.
Reliability and warranty
Reliability complaints — belts slipping, consoles failing, motors stopping — appear for nearly every home treadmill on Amazon. Warranty terms (frame, motor, parts and labour) and the availability of service are part of what you buy. Because Amazon listings rarely state full warranty terms, check them on the manufacturer’s site before purchase.
How we evaluated these treadmills
We shortlisted treadmills available on Amazon.com and compared each on running performance (25%), build and durability (20%), deck and cushioning (15%), training features (10%), home practicality (10%), warranty and support (10%) and value (10%).
Where a listing does not publish a motor rating, deck size or warranty, we say so and score transparency accordingly. Customer themes come from Amazon reviews and are reported as user experience; some NordicTrack ratings are pooled across several models on one listing. We have not tested these treadmills.
Frequently asked questions
How much do I need to spend on a running treadmill?
For regular running, expect roughly $800–$1,500 for a machine with a 60 in deck, 12 mph and a sturdy frame. Below about $600, treadmills are generally better for walking and light jogging.
What motor do I need?
Look for a published continuous-duty rating of around 3 CHP or more for regular running, especially for heavier users. Ignore peak horsepower figures.
Is treadmill running the same as running outside?
Close, but not identical. A systematic review found motorised treadmill running broadly comparable to overground running in most biomechanical measures, with some small differences. Because there is no air resistance indoors, a study of trained runners found that a 1% treadmill incline best matched the energy cost of running outdoors at the speeds tested.
Do I need a subscription?
No treadmill here requires one to walk or run. Subscriptions unlock classes and auto-adjusting workouts; machines that connect to third-party apps let you use services you already have.
Sources
- [1] Van Hooren B, Fuller JT, Buckley JD, Miller JR, Sewell K, Rao G, Barton C, Bishop C, Willy RW. Is motorized treadmill running biomechanically comparable to overground running? A systematic review and meta-analysis of cross-over studies. Sports Medicine. 2020;50(4):785–813. Systematic review and meta-analysis doi.org/10.1007/s40279-019-01237-z
- [2] Jones AM, Doust JH. A 1% treadmill grade most accurately reflects the energetic cost of outdoor running. Journal of Sports Sciences. 1996;14(4):321–327. Experimental study doi.org/10.1080/02640419608727717
Product specifications come from manufacturers and their Amazon.com listings (each product page lists its sources); customer themes come from Amazon reviews and are reported as user experience, not as evidence. Ratings and review counts were checked on October 7, 2026. LiftEvidence scores are editorial assessments; we have not tested these products ourselves. First published October 7, 2026.