The Merax Foldable Incline Treadmill is a budget-friendly compact treadmill that folds down to about 3.5 inches tall. It pairs a 3.0 HP motor with a 1–8 mph speed range, a 15% manual incline, a 40.94 × 14.17-inch belt and a 300-lb weight capacity, with 12 built-in HIIT programs.
It ranks #2 in our budget treadmill guide as the slimmest pick when folded, and also appears in our best folding treadmill under bed and most compact treadmill guides. This review covers how it performs, how the manual incline works, how it stores and which alternative to choose if it is not the right fit.
Merax Foldable Incline Treadmill Review: The Short Answer
OUR VERDICT
FITSCORE 67.2/100
Merax Foldable Incline Treadmill
Buy it if you want a slim, light treadmill with real incline and room to jog on a tight budget. Skip it if you want one-touch incline changes, a wide belt or a long warranty.
- 3.0 HP motor, 1–8 mph, 15% manual incline
- 40.94 × 14.17-inch belt, 300-lb capacity
- Folds to about 3.5 inches tall, 46.3 lb
Best Usage
- Brisk walking and light jogging
- Fixed-incline walking workouts
- Storage under a bed or sofa
Best For
- Users up to 300 lb
- Small rooms and apartments
- Budget-minded buyers
Not For
- Changing incline mid-workout
- Wide or long strides
- App-based training
Key Specs
- Motor: 3.0 HP
- Speed: 1–8 mph
- Incline: 0–15% (manual)
- Running Surface: 14.17 × 40.94 in
- Weight Capacity: 300 lb
Pros
- 15% incline for the class
- Folds to about 3.5 inches
- Light 46.3-lb frame
Cons
- Incline is set by hand
- Narrow 14.17-inch belt
- 1-year warranty
Merax Foldable Incline Treadmill Specs at a Glance
| Spec | Merax Foldable Incline Treadmill | What it means for you |
|---|---|---|
| Motor | 3.0 HP | Plenty of power for walking and light jogging. |
| Speed | 1–8 mph | Covers walking to an easy run of about 7:30 min/mile. |
| Incline | 0–15% (manual) | Steep, but you set it by hand before you start. |
| Belt size | 40.94 × 14.17 in | Long enough for walking; narrow for running. |
| Cushioning | 7-layer belt with shock absorption | Softens impact on hard floors. |
| Programs | 12 HIIT programs | Structured interval sessions without an app. |
| Max user weight | 300 lb | High for a treadmill this light. |
| Assembled size | 45.28 × 20.08 × 39.37 in (L × W × H) | Fits in a small corner of a room. |
| Folded height | About 3.54 in | Low enough for many beds and sofas. |
| Product weight | About 46.3 lb | Easy for one person to move and store. |
| Display | LED | Shows the basics; no Bluetooth or app. |
| Frame | Alloy steel, 4 adjustable feet | The feet help level it on uneven floors. |
| Warranty | 1 year whole machine and accessories | Short coverage, typical for budget treadmills. |
Check Amazon for current pricing and availability.
Specifications are from the manufacturer listing. Confirm the current model and warranty terms on the product page before ordering.
Merax Foldable Incline Treadmill FitScore
FitScore rates each treadmill on structured product data, weighted for one buying intent. The Merax Foldable Incline Treadmill is bought mainly as a budget treadmill, so this review uses the same weights as our budget treadmill guide, where it ranks #2 with the same score. Performance and affordability count most (20% each), then durability, comfort and practicality (15% each), with noise at 10% and features at 5%, because a budget buyer needs the most useful machine for the money without giving up basic quality or easy storage.
FitScore for Budget Treadmills
How this FitScore was calculated
This FitScore combines 7 category scores using the weights of the buying intent above.
- Affordability (100): one of the most budget-friendly ways to get 15% incline and 8 mph.
- Performance (82): strong 3.0 HP motor, 8 mph and 15% incline, set manually.
- Practicality (79): folds to about 3.5 inches tall and weighs about 46 lb.
- Durability (49) and comfort (35): 1-year warranty and a narrow 14.17-inch belt.
- Noise (48): a sub-45 dB claim from the brand, but no consistent owner feedback yet.
Design and Build Quality
The Merax uses an alloy steel frame rated for 300 lb, which is high for a machine that weighs only about 46.3 lb. Four adjustable support feet help keep it stable on uneven floors.
Owners rate it well for quality and sturdy construction. Long-term durability is not yet well established, so the short warranty is worth keeping in mind.
Bottom line: a sturdy, light frame with an unproven long-term record.
Motor and Performance
The 3.0 HP motor drives a 1–8 mph speed range. That covers walking, brisk walking and easy jogging, which puts it ahead of walking pads that stop at 4 or 6 mph.
Merax lists the noise level as below 45 dB. We could not confirm that with consistent owner feedback, so treat it as the brand claim rather than a measured result.
Bottom line: enough speed to jog, not to train for races.
Running Deck and Cushioning
The belt is 40.94 inches long and 14.17 inches wide. The length works for walking and short jogging strides, but the width is narrow, so runners who drift on the belt may feel cramped.
A 7-layer non-slip belt and a shock absorption system soften each step. It helps on hard floors, but it is not the same as a full-size cushioned deck.
Bottom line: comfortable for walking, tight for running.
Incline and Programs
The 15% incline is the main reason to choose this Merax. It is manual: you shift the front wheel bracket backward and raise the support feet on both sides. That means you set the incline before a session rather than changing it with a button mid-workout.
The console includes 12 HIIT programs that vary speed for interval training, so you have structured workouts without an app.
Bottom line: steep incline for the class, but not on demand.
Console and Connectivity
The LED display shows the basics. There is no Bluetooth, no app and no heart-rate monitor.
If you want streamed classes or app tracking, use your own phone or tablet and a separate fitness tracker.
Bottom line: simple and subscription-free, with no connected features.
Footprint, Folding and Noise
Assembled, it takes about 45.28 × 20.08 inches of floor space. It folds in seconds with no tools to about 3.54 inches tall, which is why it ranks as the slimmest folded pick in our budget treadmill guide.
Owners like how compact it is to store. A mat helps reduce footstep noise in apartments and upstairs rooms.
Bottom line: one of the slimmest folded treadmills in its class.
Assembly, Warranty and Support
Folding requires no tools, and the light frame makes it easy to move into place.
Merax lists a 1-year quality assurance for the whole machine and for accessories, plus 24/7 support. That is typical for budget treadmills but much shorter than full-size models.
Bottom line: easy to live with, with short coverage.
Merax Foldable Incline Treadmill vs Rivals
Here is how the Merax Foldable Incline Treadmill compares with three other budget picks, using the same budget FitScore weights.
| Comparehead to head | THIS REVIEW | ALTERNATIVE 1 | ALTERNATIVE 2 |
|---|---|---|---|
| Motor | 3 HP | 1 HP | 3 HP |
| Speed | Up to 8 mph | Up to 6 mph | Up to 10 mph |
| Incline | 0–15% | 0–13% | 0–15% |
| Running Surface | 14.17 × 40.94 in | 15.7 × 39.3 in | 15.35 × 41.73 in |
| Weight Capacity | 300 lb | 265 lb | 300 lb |
| Warranty | 1 year frame, 1 year motor, 1 year parts | 3 years frame, 3 years motor, 3 years parts | 1 year frame, 1 year motor, 1 year parts |
| Check Price | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon |
Alternatives to the Merax Foldable Incline Treadmill
Faster and wider: Choose the Merax 3.0HP Folding Treadmill (FitScore 68) if you want up to 10 mph and a wider 15.35-inch belt with the same 15% incline.
Longer warranty: Choose the SereneLife SLFTRD26BT if you want a 3-year warranty and 13% incline, and you stay under 265 lb.
Final Verdict
The Merax Foldable Incline Treadmill is a strong budget pick if you want 15% incline and light jogging in a frame that folds to about 3.5 inches. The manual incline, narrow belt and 1-year warranty are the trade-offs. If you want more speed and a wider belt, the Merax 3.0HP Folding Treadmill is the better fit.
Merax Foldable Incline Treadmill FAQ
Yes, if you want incline and light jogging on a tight budget. It offers a 3.0 HP motor, up to 8 mph, 15% incline and a 3.5-inch folded height, but the incline is manual and the warranty is 1 year.
No. You set the 15% incline by hand by moving the front wheel bracket and raising the side support feet.
The maximum user weight is 300 lb.
It runs from 1 to 8 mph, which covers walking and easy jogging.
Yes. It folds without tools to about 3.54 inches tall, low enough to slide under many beds and sofas.
No. It has an LED display and 12 HIIT programs, but no Bluetooth or app support.
Merax lists a 1-year quality assurance for the whole machine and accessories. Confirm current terms on the product page.
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