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Picking between folding treadmill designs often comes down to one question. Is the goal running, or is it fitting movement around a desk? A foldable treadmill comparison between two ranges from Walking Pad UK makes that choice clearer, since the Vertical Fold Series and the Classic Foldable Series are built around different training goals rather than interchangeable versions of the same machine.
Two Collections, Two Training Goals
Walking Pad UK organises its treadmill range into two distinct collections rather than one catalogue of similar machines. The Vertical Fold Series stores upright, which the brand positions as a space-saving solution for those who still want strong running capability. Both lines sit under the same brand, but the product pages treat them as separate answers to separate questions, which matters for anyone running a foldable treadmill comparison before buying.
Vertical Fold Series: Speed and Running Performance
The Vertical Fold Series includes machines aimed at people who want more than a walking pad. The WalkingPad X218 is described as the fastest KingSmith treadmill in the lineup, reaching up to 11.5 mph, and it adds a digital display that tracks pace during runs alongside a shock absorption system.
The WalkingPad X25+ runs a 1.5 CHP continuous / 4.5 HP peak brushless motor across a 1 to 10 mph (16 km/h) range, suited to genuine jogging rather than a brisk walk, while the WalkingPad X208 runs a smaller 0.75 CHP continuous / 2.25 HP peak motor across a 1 to 4 mph (6 km/h) band built for everyday movement near a desk. Further down the collection, the WalkingPad X21 introduces what the brand calls Double-fold technology, a feature that won the German Red Dot Award and the iF Design Award. This spread shows the Vertical Fold Series is not one fixed speed class, but a range running from gentle daily steps to full running pace.
Classic Foldable Series: Incline Training and Desk-Side Workouts
The Classic Foldable Series folds flat or tucks against a wall once a session ends. Walking Pad UK frames the G5i as the incline-focused model for genuine hill-style training, and the G2 PLUS as the quieter option for all-day desk-side walking. That dual framing sets the collection apart from the Vertical Fold Series, which leans on upright storage rather than flat folding.
The WalkingPad G2 PLUS represents the desk-side half of that promise, running a 1.0 CHP continuous / 3.0 HP peak brushless motor built for smooth, quiet operation during calls or work, with a top speed of up to 8.5 mph. That combination of incline potential on one model and desk-friendly quietness on another is the core distinction buyers tend to weigh in a foldable treadmill comparison between the two lines.
The WalkingPad G5i: Incline Innovation in the Classic Range
The WalkingPad G5i sits at the top of the Classic Foldable Series and is described by Walking Pad UK as the world’s first folding incline treadmill. It offers an 18% adjustable incline across 25 levels, with automatic incline adjustment available at the press of a button. Top speed reaches up to 10 mph (16 km/h), and the running area measures 130 x 50 cm, giving room for a full running stride rather than a walking shuffle.
The G5i also carries a stated user weight capacity of up to 136 kg and arrives fully assembled. Those figures place it apart from the rest of the Classic lineup, which otherwise focuses on quieter, desk-oriented use rather than incline-driven training. For anyone comparing incline capability specifically, the G5i is the clearest example of what separates the Classic range’s flagship from its simpler sibling.
Comparing Motor Power and Speed Across Both Series
Lined up side by side, motor specifications show how differently the two series are tuned. In the Vertical Fold Series, the X218 tops out at 11.5 mph, the X25+ covers 1 to 10 mph on its 1.5 CHP continuous motor, and the X208 stays within a gentler 1 to 4 mph band. That range alone covers everything from light daily steps to a genuine running pace.
In the Classic Foldable Series, the G5i reaches up to 10 mph with its incline feature layered on top, while the G2 PLUS tops out at 8.5 mph, suited to steady walking rather than high-speed training. As a result, the Vertical Fold Series currently holds the higher top speeds overall, while the Classic series differentiates itself through incline rather than raw pace. That trade-off is worth weighing carefully in a foldable treadmill comparison focused on training intensity.
- The Vertical Fold Series stores upright for compact vertical space-saving, while the Classic Foldable Series folds flat or against a wall.
- Motor outputs range from a 0.75 CHP continuous motor in the WalkingPad X208 up to a 1.5 CHP continuous / 4.5 HP peak motor in the WalkingPad X25+.
- Top speeds vary from a controlled 1 to 4 mph range on the X208 to as much as 11.5 mph on the WalkingPad X218.
- The Classic series’ WalkingPad G5i adds an 18% adjustable incline across 25 levels, a feature not present elsewhere in either series.
- The Vertical Fold Series targets running-capable training, while the Classic series balances incline work with quieter desk-side movement on the G2 PLUS.
Choosing Between Vertical Fold and Classic Foldable Designs
Deciding between the two series starts with how a treadmill will actually be used day to day. Someone chasing higher speeds and a vertical storage footprint has several options within the Vertical Fold Series, from the compact X208 up through the running-focused X218. Someone prioritising incline training leans toward the G5i, while someone wanting quieter, longer desk-side sessions leans toward the G2 PLUS, both within the Classic Foldable Series.
Walking Pad UK structures its site around these use cases directly, grouping products under labels such as walking and running, pro running and incline, and under-desk working. That structure reflects the same split running through this foldable treadmill comparison, between speed-oriented vertical storage and incline-oriented flat folding.
Both series fold away, but they solve different problems.
