Sunny Health & Fitness
Sunny Health & Fitness Excel Smart Incline/Decline Treadmill
−5% to 12% incline, 12 mph and a 20 in deck for under $900
- Best for
- Walkers and runners who want decline training without paying premium prices.
- Skip if
- Fast running on a long stride — the deck is 55 in — or buyers who need a continuous motor rating.
- For less
- NordicTrack T 6.5 S (budget) — An established folding treadmill with 10% incline for around $600
Sunny Health & Fitness
Folding motorised
20 × 55 in
Amazon customer rating
4.4/5 from 1,825 ratings
Checked October 7, 2026
- Motor
- 4 HP peak (Continuous-duty rating not published)
- Running deck
- 20 × 55 in
- LiftEvidence score
- 7.2 / 10
- Price band
- Mid-range
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Quick verdict
LiftEvidence editorial assessment
A folding treadmill with −5% to 12% auto incline/decline, 12 mph, a 20 × 55 in deck with double-deck shock absorption and a 350 lb capacity. It is the cheapest way to get decline here. The motor is rated only as “4 HP peak” (continuous not published), decline is limited to 5 mph, and some owners report noise and failures.
Specifications
Source: manufacturer listing
As stated by the manufacturer (website or Amazon listing; conflicts are noted). Information that was not available or could not be confirmed is omitted or marked “Not reliably published”.
- Brand
- Sunny Health & Fitness
- Model
- Excel Smart
- ASIN
- B0CQPNQWDB
- Type
- Folding motorised
- Motor
- 4 HP peak (Continuous-duty rating not published)
- Top speed
- 12 mph
- Incline
- To 12%
- Decline
- To −5% (up to 5 mph)
- Running deck
- 20 × 55 in
- Cushioning
- Double-deck shock absorption
- User capacity
- 350 lb
- Folds
- Yes
- Dimensions
- 67.7 × 32.9 × 55.1 in (L × W × H)
- Machine weight
- 186.6 lb
- Display & connectivity
- LED display; SunnyFit app and smart-TV connection
- Subscription
- Not required (free app)
Sources: Amazon.com listing. Checked October 7, 2026.
Who it suits
LiftEvidence editorial assessment
Best suited to
- Incline Walking
- Walking
- Budget
Walkers and runners who want decline training without paying premium prices.
Less suitable for
Fast running on a long stride — the deck is 55 in — or buyers who need a continuous motor rating.
Strengths and drawbacks
LiftEvidence editorial assessment
Strengths
- −5% to 12% incline range
- 12 mph and 350 lb capacity
- No subscription needed
- Large review base (1,825)
Drawbacks
- Only peak HP published
- 55 in deck is short for fast running
- Decline limited to 5 mph
- Mixed noise and reliability reports
Running, stability and durability
LiftEvidence editorial assessment
Our interpretation of the specifications, stated construction and recurring customer feedback. We have not independently tested this product.
- Running
- Good
- Walking
- Good
- Stability
- Good
- Quietness
- Moderate
- Build quality
- Good
- Durability
- Average
Evidence and product claims
Scientific evidence, independent testing and manufacturer claims are different kinds of information and are not equivalent.
Independent testing
No independent laboratory testing of this model identified.
Manufacturer claims
Peak 4 HP motor; 22 levels of incline and decline (manufacturer listing).
Marketing statements; not independently verified.
Customer feedback
Source: Amazon customer reviews · checked October 7, 2026
Amazon customer rating
4.4/5 from 1,825 ratings
Checked October 7, 2026
Customer ratings reflect user experience on Amazon. They are not LiftEvidence ratings and are not controlled evidence.
Recurring themes
Owners find it well engineered and easy to assemble, with a 20 in belt that suits smaller rooms, and describe it as sturdy — though some report failures after a few months. Noise is mixed (some report squeaks and pops), and it is heavy to move.
Commonly praised
- Easy assembly
- Sturdy
- 20 in belt
Commonly criticised
- Squeaks or pops (some)
- Failures after months (some)
- Heavy
Editorial scores
LiftEvidence editorial assessment · 0–10
7.2/ 10 · LiftEvidence score (weighted)
- Running performance · 25%
- 7.5
- Build & durability · 20%
- 7.0
- Deck & cushioning · 15%
- 6.5
- Training features · 10%
- 8.0
- Home practicality · 10%
- 7.0
- Warranty & support · 10%
- 6.0
- Value · 10%
- 8.5
Editorial judgements from the manufacturer's specifications, stated construction and recurring customer-review themes, using the same criteria for every product in this category. They are not measurements, and we have not tested this product. How we evaluate
Compare with other treadmills
- Horizon 7.4 AT
Folding motorised · 3.5 CHP (continuous duty) · 22 × 60 in
- NordicTrack Commercial 1750
Folding motorised · Not reliably published · Not reliably published
- ProForm Carbon TLX
Folding motorised · Not reliably published · Not reliably published
- Horizon 7.0 AT
Folding motorised · Not reliably published · 20 × 60 in
- NordicTrack T 6.5 S
Folding motorised · Not reliably published · Not reliably published
- Sunny Fully Assembled
Compact / walking · 2.5 HP brushless · 20 × 53 in
- SB Fitness CT400
Manual curved · None (self-powered) · Not reliably published
Where to check the price
LiftEvidence is not the seller. These links lead to the Amazon listing for this model; availability differs by country.
Sunny Excel Smart
Check price on Amazon