In-depth review
KingSmith WalkingPad A1 Pro Review (2027): The Fold Is the Product
Research review of the WalkingPad A1 Pro as storable equipment: folded dimensions against real slots, hinge behavior, walking-only trade, and belt upkeep.
KingSmith WalkingPad A1 Pro Folding Treadmill
The deck that folds in half: a full walking treadmill stored as a flat panel behind a door.
- About 56.9 x 21.4 x 5.1 in unfolded
- Footprint in use
- Folds in half to roughly 28-30 in long by 21.4 in wide, about 5-6 in thick
- Folded size
- Central deck hinge, fold by hand; transport wheels for moving the folded panel
- Fold mechanism
Our verdict
Review the A1 Pro as furniture first and it passes a test no other treadmill attempts: folded in half, about 5-6 in thick, it fits the storage slots that actually exist in small homes. Review it as a treadmill and the terms are fixed: walking speeds to 3.75 mph, no incline, no handrail, a belt you center occasionally. Buyers who needed the first product and accepted the second are this machine's happiest owners, and they are numerous. Buyers who wanted a running machine that happened to fold are its disappointed minority. The fold is not a feature of this treadmill. The fold is the treadmill, and the walking is the trade it makes to exist.
What we like
- Folds in half at a central hinge, halving its stored length in one motion with no tools and no partial disassembly
- At about 5-6 in thick folded, it fits storage slots no other treadmill in this hub can enter
- Transport wheels let one person roll the folded panel from its slot to its lane
What to watch out for
- Walking speeds only, with a belt sized for a walking stride
- No incline and no handrail in the base configuration
Who it is for
Walkers and desk workers in small homes whose storage is a flat slot and whose cardio goal is daily step volume.
Folded dimensions against real slots
Unfolded, the deck is about 56.9 x 21.4 in. Folded, it is a panel roughly half that length at the same width and about 5-6 in thick. Run that panel against the canonical slots: under a bed with 6 in of clearance, it fits; behind a standard door, it fits; upright in a closet, it fits. No fold-up treadmill can make those claims, because their folded shape trades length for height. This is the only machine in the hub whose stored form was designed before its running form, and it shows in every dimension.
The hinge, used daily
The central fold is a hand operation with the deck stopped flat, and the routine owners describe takes under a minute including the roll to the slot on its wheels. Hinge complaints in feedback are rare and usually involve grit in the joint or folding on an uneven floor. Treat the fold as a mechanism with manners, clean, flat, unforced, and it behaves like the product's reason to exist, which it is.
What walking-only really costs
The cap is 3.75 mph: a purposeful walk, short of a jog, forever. For step goals, desk work, and low-impact volume, owners find the ceiling irrelevant within a week. For anyone whose training includes running intervals, the ceiling is the whole review, and the TR150 in this hub is the storable machine built for them, with a folded shape that needs a wall instead of a slot. The category rewards knowing which athlete you are.
Belt care, the ownership tax
Walking pads ask for belt centering in quarter-turn adjustments and a deck kept free of grit. Owners who pay the tax report uneventful years; owners who skip it report edge wear and call it a defect. Budget five minutes a month, keep the mat under the deck in hard-floored rooms, and the machine's second year feels like its first.
Key specifications
- Footprint in use
- About 56.9 x 21.4 x 5.1 in unfolded
- Folded size
- Folds in half to roughly 28-30 in long by 21.4 in wide, about 5-6 in thick
- Fold mechanism
- Central deck hinge, fold by hand; transport wheels for moving the folded panel
- Speed range
- 0.5-3.75 mph, walking only
- Storage slots it fits
- Under beds with about 6 in clearance, behind doors, upright against a wall per the manual
What owners report
Commonly praised
- The fold is the purchase: owners in studios call it the only treadmill that made sense
- Daily use rises because the machine is reachable in under a minute
- Walking pace is quiet enough for calls and thin floors
Common complaints
- Belt centering needs occasional adjustment
- Heavier than it looks when a move involves stairs
- Long top-speed sessions warm the motor area, so duty cycles apply
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated November 2026.
Sources: KingSmith WalkingPad A1 Pro product documentation, Amazon listing specifications
Also consider
XTERRA FitnessXTERRA Fitness TR150 Folding Treadmill
A true running-capable treadmill whose deck lifts and locks, with wheels to roll it aside.
- Footprint in use: About 62 in long by 28.75 in wide in running position, per the manufacturer class
- Folded size: Deck folds up to a stored footprint of roughly 28.75 in wide by about 29 in deep, at full frame height; confirm the current listing folded dimensions
Sources: XTERRA Fitness TR150 product documentation, Amazon listing specifications
Check price on Amazonor add to your Amazon cartChoose the TR150 if running is non-negotiable and your storage can be a wall with vertical room instead of a flat slot.
XTERRA FitnessXTERRA Fitness FB350 Folding Exercise Bike
An upright bike on an X-frame that folds to about half its length and rolls into a corner.
- Footprint in use: About 40.5 x 21 x 50.5 in assembled, per the manufacturer
- Folded size: Folds to about 20.5 in long in the X-frame position, per the manufacturer; roughly half its in-use length
Sources: XTERRA Fitness FB350 product documentation, Amazon listing specifications
Check price on Amazonor add to your Amazon cartChoose the FB350 if the budget is tighter and a corner-stored bike covers your cardio without any deck at all. Read our XTERRA Fitness FB350 Folding Exercise Bike review
Research-based assessment: manufacturer specifications and documentation, cross-checked against retailer listings and recurring themes in published owner feedback. We do not claim hands-on testing we have not performed.
FAQ
Folding and Storable Equipment questions, answered straight
Will the folded A1 Pro fit under my bed?
If your frame's lowest clearance is about 6 in or more along the path the panel slides, yes. Measure under the center support and side rails, not at the open edge, and slide a box of similar thickness in as a test before ordering if the number is close.
Can one person move it between rooms?
On one floor, yes: it rolls on its transport wheels in the folded position. Stairs are the honest limit owners report, so a gym that must change floors should weigh that move before choosing any deck.
Does daily folding shorten its life?
The fold is the core design, cycled daily by its owner base. Keep the hinge area clean and fold on a flat surface, and folding is the routine the machine was built around, not an abuse of it.