Walking Pad S1 vs C2: Which Compact Model Fits Your Home?

The walking pad s1 vs c2 comparison is unusual because these two KingSmith models share many important specifications. Both are compact, foldable walking treadmills designed for everyday movement at home, with similar belt dimensions, weight capacities, speed limits, and remote-control functions. The C2 is the more practical choice for most new buyers because it has a current U.S. product listing and updated design options. However, owners of a functional S1 have relatively little reason to upgrade based on performance specifications alone.

There is also an important model-identification detail. The older S1 and C2 documentation both reference the WPS1F model designation and the same FCC identification family. This suggests considerable overlap in their underlying platform, although it does not prove that every production batch uses identical components. The differences are better understood through their documented specifications, physical design, and current purchasing support.

WalkingPad S1 vs C2: Quick answer

The WalkingPad C2 is the better choice for someone buying a new compact walking treadmill. It has a current U.S. product page, multiple color options, and a refreshed presentation while retaining the basic functionality associated with the older S1.

The S1 remains a reasonable option for someone who already owns one or finds a properly maintained used unit at an attractive price.

The most important similarities are:

• Both have approximately 47 × 15.7-inch walking surfaces.

• Both have a manufacturer-rated maximum user weight of 220 pounds.

• Both operate at approximately 3.7 mph maximum speed, equivalent to 6 km/h.

• Both support manual and automatic walking modes.

• Both support remote control and the KS Fit app.

• Both use a folding walking deck rather than a conventional handrail-equipped treadmill frame.

The C2 does not represent a meaningful upgrade in walking speed, capacity, or belt dimensions. Its advantages are primarily related to the current product presentation, design options, and purchasing support.

WalkingPad S1 vs C2 specifications

The following comparison uses the older U.S. S1 manual and the U.S. C2 documentation, supplemented by the manufacturer’s current C2 product specifications.

Important specification note: Some WPS1F manual copies list the S1 at 55 pounds rather than 59.4 pounds. The original U.S. S1 manual reports 59.4 pounds, while another WPS1F manual copy reports 55 pounds. Buyers should check the actual product label and regional documentation rather than treating the weight difference as universal.

The C2’s current U.S. product page lists a 1–4 mph speed range alongside 6 km/h. Since 6 km/h converts to approximately 3.73 mph, the 4 mph figure should be understood as rounded marketing specification rather than evidence of a meaningful speed advantage.

What the WalkingPad S1 vs C2 specifications reveal

The most interesting result is how little separates these machines mechanically on paper.

Their walking surfaces are almost identical. Their weight capacities match, and their maximum speeds are practically the same. The folding dimensions also remain very close.

That makes the C2 more of a design and product-line update than a major performance upgrade.

The reported net-weight difference deserves some caution. If the original U.S. S1 manual is used, the C2 is approximately 4.4 pounds lighter. However, other WPS1F documentation reports the same 55-pound weight as the C2.

For someone comparing used and new machines, the model label and exact regional specifications are therefore more useful than relying on the S1 or C2 name alone.

Walking performance and speed differences

Speed is an obvious consideration when choosing a treadmill, but it does not create much separation between these models.

The S1’s original U.S. manual lists a maximum speed of 3.75 mph. The C2 documentation lists 3.7 mph, while the current U.S. product page advertises 1–4 mph.

These specifications all describe essentially the same walking-speed category.

WalkingPad S1: Everyday movement

The S1 was designed for everyday walking at home rather than intensive running workouts.

Its speed range makes it suitable for users who want to accumulate steps while watching television, reading, or performing light activities around the house.

The manual also describes automatic speed adjustment. This mode uses the walking position to adjust the belt speed without requiring constant remote input.

For people who prefer direct control, manual mode allows adjustments through the remote or KS Fit app.

The S1 is therefore more capable than a basic stationary walking platform, but it remains a walking-focused treadmill.

WalkingPad C2: Similar walking capability with updated presentation

The C2 maintains the same basic workout purpose.

Its current product page describes manual speed adjustment through the remote, KS Fit app connectivity, and FootSense automatic control.

FootSense allows users to influence speed by moving toward different areas of the walking belt. Moving toward the front increases speed, while moving toward the rear reduces it.

This feature makes everyday walking more convenient, especially when users do not want to hold a remote throughout a session.

However, the S1’s manual already describes an automatic mode that responds to walking position. Therefore, FootSense should not be treated as an entirely new capability exclusive to the C2.

For someone who simply wants a compact machine for walking while working at a standing desk, both models offer essentially the same fundamental experience on paper.

Walking surface and comfort

The walking surface is another category where the two models are closely matched.

The S1 manual identifies a 47 × 15.7-inch walking area, while the C2’s current technical specifications list 47.2 × 15.7 inches.

A difference of 0.2 inches in published belt length is negligible for most everyday walking decisions.

Neither model offers a substantial advantage for users who need additional room for longer strides.

The 15.7-inch width is particularly important. It is narrower than the decks found on many conventional treadmills, so users accustomed to larger running machines may need time to adjust.

What the belt dimensions mean for taller users

Taller users often have longer walking strides, which makes belt length particularly relevant.

The approximately 47-inch walking surface is sufficient for many everyday walking routines, but it should not automatically be considered comfortable for every user.

Consider your natural stride and intended speed before purchasing either model.

A person who primarily walks slowly while working may find this size adequate. Someone who wants to walk briskly for longer sessions or needs more freedom to reposition their feet may prefer a larger walking surface.

Neither the S1 nor the C2 solves this limitation.

Shock absorption and walking comfort

The C2’s current product information identifies an EVA and PET cushioning system.

The manufacturer’s specifications also describe the folding deck as incorporating shock-absorption materials.

The available S1 documentation does not establish a separately verified cushioning advantage over the C2.

Consequently, there is insufficient evidence to claim that one model produces noticeably less impact, feels softer, or is more comfortable during extended sessions.

Those differences would require standardized testing using comparable surfaces, speeds, and user weights.

Folding design, portability, and storage

Both products use a folding-deck design intended to reduce the amount of space required for storage.

Their unfolded dimensions are approximately 56.9 × 20.4 × 4.9 inches.

The C2 folds to approximately 32.5 × 20.4 × 5.4 inches.

The S1’s U.S. manual lists folded dimensions of 825 × 518 × 140 mm, making it similarly compact. Its inch conversion in the manual does not perfectly match the metric measurement, so the metric dimensions are more reliable for this comparison.

Neither machine should be assumed to have a major storage advantage.

The C2’s current product information promotes under-bed and under-sofa storage. Its integrated wheels also make repositioning more convenient.

The S1 has the same general folding concept, making it a reasonable option for someone who already has suitable storage space.

One important safety detail deserves attention: the available WPS1F manuals prohibit vertical placement. Even though the treadmill folds, buyers should not assume that it can safely be stored standing upright against a wall.

Follow the storage instructions for the exact unit.

For small apartments, both models can be practical provided there is enough floor space to unfold the treadmill and enough clearance for the user to walk comfortably.

Controls, app compatibility, and convenience

The two machines share more similarities in their controls than their different product names might suggest.

Both support the KS Fit application, remote operation, and automatic speed adjustment.

Manual control

Manual mode is useful for beginners because the user can set a comfortable walking speed and adjust it directly.

The S1 manual describes using either the app or remote control to adjust speed.

The C2 also includes a remote that can start, stop, and change the belt speed.

For people who prefer a simple workout without using a smartphone, neither product requires the app for every basic operation.

Automatic walking mode

Automatic mode adjusts speed in response to the user’s position on the belt.

The user can move forward to increase speed and move backward to reduce it.

This can make walking more convenient when the treadmill is being used regularly at home or in an office.

However, automatic operation may require practice. The original S1 manual recommends that users become comfortable with the machine before relying on this mode.

The same sensible approach applies to the C2.

Start with manual operation at a low speed and understand how to stop the treadmill before trying automatic control.

KS Fit and Bluetooth features

Both machines are associated with the KS Fit app.

The current C2 product page also advertises Bluetooth connectivity and compatibility with fitness applications such as Kinomap.

The older S1 manual documents KS Fit, but does not establish the same current Bluetooth and third-party app compatibility.

This is one area where buyers should be careful about firmware, regional product versions, and app support.

The manufacturer’s current FAQ explains that app compatibility varies by model and software version. Do not assume that every feature currently promoted for C2 will work identically on an older S1.

For someone who mainly wants to start, stop, and adjust walking speed, this distinction is unlikely to be decisive.

Which model should you buy?

Choose the WalkingPad C2 for a new purchase

The C2 is the more sensible option for most new buyers.

Its current U.S. product listing, multiple color choices, and updated product presentation make it easier to evaluate and purchase as a current product.

It also retains the core specifications that made the S1 useful for everyday walking.

The main advantages are not higher speed or greater capacity. They are the current product availability, design choices, and a more straightforward purchasing path.

Buy if you want a compact walking pad for daily use, value the current KS Fit and FootSense features, and do not need a larger treadmill.

Skip if you expect significant performance improvements over an S1 you already own.

Keep or buy the WalkingPad S1 when the deal makes sense

The S1 remains relevant because its core specifications are very close to the C2.

Existing owners do not need to replace a functional unit simply because a C2 product listing is available.

A used S1 may also be attractive when it is substantially less expensive than a new C2.

However, inspect the machine carefully. Check the belt alignment, remote operation, folding hinge, display, power cable, and motor behavior before purchasing.

Ask for the model number and manual, particularly if the seller cannot establish whether the treadmill is the original U.S. version.

Buy if you already own one, or find a verified used unit in good working condition at a compelling price.

Skip if its condition is uncertain, replacement parts are difficult to obtain, or the seller cannot confirm the electrical specifications.

Consider another WalkingPad model for faster workouts

Neither the S1 nor the C2 is a dedicated running treadmill.

Their approximately 3.7-mph maximum speed is designed for walking and brisk walking rather than regular running.

Users who want a machine for jogging or running should consider a different category.

WalkingPad’s current product lineup includes the R series for walking and light jogging, and X series models for running-focused workouts.

Those machines provide higher speed capabilities and different deck configurations.

The extra cost and larger footprint may be unnecessary for someone who only wants to walk while working. However, they are better starting points when running performance is a genuine requirement.

Frequently asked questions

Is the WalkingPad C2 newer than the S1?

The S1 documentation dates back to an earlier WPS1F product generation, while the C2 is presented as a current product in WalkingPad’s U.S. lineup.

However, both manuals identify the WPS1F model designation and show substantial specification overlap. The C2 should not be assumed to have an entirely different mechanical platform.

Does the WalkingPad C2 have a faster motor than the S1?

There is no convincing evidence of a meaningful speed improvement.

The S1 manual lists a maximum of 3.75 mph, while the C2 manual lists approximately 3.7 mph. The current C2 page rounds the speed to 4 mph while also giving 6 km/h.

These figures describe essentially the same maximum walking speed.

Can the WalkingPad S1 and C2 support 220 pounds?

Both have a documented maximum user-weight capacity of 220 pounds.

This is a manufacturer-rated maximum, not an independently verified durability measurement. Users should check the rating on their exact unit and avoid exceeding it.

Can you run on the WalkingPad S1 or C2?

Neither is intended as a dedicated running treadmill.

Their maximum speed is approximately 3.7 mph, making them more suitable for everyday walking and brisk walking.

People who need regular running workouts should select a treadmill with a higher speed rating and a larger running surface.

Do the WalkingPad S1 and C2 fold vertically?

The available WPS1F manuals prohibit vertical placement.

Although both machines have folding decks, buyers should follow the approved flat-storage instructions rather than standing the treadmill upright against a wall.

Is the WalkingPad C2 worth upgrading to from the S1?

For most existing owners, probably not.

The machines share nearly identical basic walking specifications. The C2 offers updated styling and a current purchasing route, but it does not provide a compelling documented increase in speed, capacity, or walking space.

An upgrade makes more sense when the existing S1 needs replacement or when the buyer specifically wants the C2’s current product availability and design options.

Conclusion

The WalkingPad C2 is the better choice for most new buyers because it is the current product offering with updated design options and a clearer U.S. purchasing path. The S1 remains a capable everyday walking pad, however, and its core specifications are remarkably close to those of the C2.

The biggest takeaway is that the C2 is not a major performance upgrade. Both offer approximately the same walking speed, belt dimensions, and weight capacity. Unless you need a replacement or prefer the C2’s updated presentation, there is little reason to replace a working S1.