WalkingPad X218 Review 🏃 The Fastest Folding Treadmill for Home

WalkingPad X218 Review

At 18 km/h (11.2 mph), the WalkingPad X218 is the fastest folding treadmill I have tested, and with a 140 × 51 cm (55 × 20 in) running surface it also has the largest deck. It folds vertically, integrates with the Apple Watch and used only around 0.13 kWh per 30 minutes in my test. The price for all that: 58.5 kg (129 lb) of weight and handles that are not height-adjustable.

I tested the WalkingPad X218 extensively at my desk and for running workouts. Below I share my ratings from the test in detail.

This is a single review. All eleven models I tested, with a comparison table, are in my big walking pad review. You can find all my other walking pad and treadmill reviews in the walking pad category.

Key takeaways

• 1 to 18 km/h (0.6–11.2 mph), 136 kg (300 lb) capacity, 140 × 51 cm (55.1 × 20.1 in) running surface: the sports machine of the X series.
• Measured: around 48 to 50 dB walking at 2 km/h (1.2 mph), 0.13 kWh for 30 minutes of interval training.
• 58.5 kg (129 lb), vertical folding to 29.5 cm (11.6 in) deep, delivered right into your home.
• More of a sports machine than an office tool; at a desk you need a table that reaches around 127 cm (50 in).

Design & build quality ★★★★★ (4.8/5)

The X218 is currently the largest and most powerful model in the range. Despite its massive 58.5 kg, it surprised me in handling: it moves more easily than expected. The build quality is excellent, and the double folding mechanism feels even sturdier than on its predecessors (e.g. the X21). A huge plus is the two-person delivery right into your home, which makes the weight manageable on arrival.

Category	Rating	Comment from the test
Material quality	5.0/5	Very high-quality materials, everything securely packed and protected.
Stability	5.0/5	Absolutely stable; the handles lock in securely.
Folding mechanism	4.9/5	Opens better than on the X21, feels very reliable.
Transport	4.5/5	Surprisingly easy to move on its wheels despite 58.5 kg.
Looks	4.8/5	Modern design, large LED strip and a clear display.

Functionality ★★★★★ (4.9/5)

With a top speed of 18 km/h and the largest running surface (140 × 51 cm), it is almost a full-size treadmill. Highlights in my test were the Apple Watch integration (heart-rate sync) and the flexibility of the programs: if an interval is too hard, you can adjust the speed without cancelling the program. Power consumption is also very efficient at roughly 4 cents for 30 minutes.

Category	Rating	Comment from the test
Speed range	5.0/5	Up to 18 km/h, suitable for walking and running workouts (even for advanced runners).
Programs/modes	4.9/5	11 programs plus custom; speed adjustable within a program!
Tracking/features	5.0/5	Apple Watch heart-rate sync, live power consumption display, app control.
Safety	4.8/5	Fast emergency stop, child lock via app, auto-stop when unloaded.
App integration	4.8/5	The KS Fit app keeps getting better, heart-rate zones are displayed very well.

Ease of use ★★★★★ (4.6/5)

The unit arrives fully assembled (“plug & play”). Operation via the rotary knob or the app is intuitive. An important note from the test: before your first real run, oil the belt and make sure to centre it if it drifts (this removes cracking noises). The only real point of criticism: the handles are not height-adjustable, which can be less than ideal for very tall people when holding on.

Category	Rating	Comment from the test
Setup/start	5.0/5	No assembly needed, just unfold and plug in (safety clip!).
Maintenance	4.4/5	Manual centring with the Allen key is often needed at first.
On-device controls	4.8/5	Quick-select buttons (3/6/9) are very handy, display easy to read.
Desk use	4.2/5	Possible (desk height above 127 cm needed), but more of a fitness machine than an office tool.
Ergonomics	4.5/5	Huge running surface, but fixed handles (a drawback for tall users).

Performance ★★★★★ (4.9/5)

In my practical test up to 14 km/h, acceleration was smooth without any jerking. The cushioning is pleasant, and the large running surface gives you a lot of confidence. The motor is powerful enough to move heavier users (up to 136 kg) without any problem.

Category	Rating	Comment from the test
Running feel	5.0/5	Very secure thanks to the 51 cm width, comparable to gym machines.
Cushioning	4.8/5	Pleasant running, well tuned.
Stability at speed	5.0/5	No wobbling, non-slip (especially with a floor mat).
Speed dynamics	4.9/5	Very smooth transitions, adjusts slowly and safely.
Suitability for serious runners	4.8/5	Definitely given, even for fast intervals.

Noise ★★★★☆ (4.5/5)

The motor itself is quiet. A fan kicks in after about 2 minutes and runs on briefly; it is audible but does not disturb you while exercising. Important: if the belt is not running centred, cracking noises can occur (happened in my test), but they disappear after adjusting.

Category	Rating	Comment from the test
Motor noise	4.8/5	Pleasant, powerful.
Fan	4.2/5	Kicks in (audible), but necessary to cool the motor.
Belt noise	4.6/5	Depends on adjustment; very quiet when set up correctly.
Vibration	4.7/5	Low; a floor protection mat is recommended.

Value for money ★★★★★ (4.7/5)

The X218 is more expensive than its smaller siblings (X21/X23), but offers by far the most performance (“maximum performance in the range”). With the included two-person delivery and the discount available in the WalkingPad store, the price is absolutely fair for what you get.

Category	Rating	Comment from the test
Price level	4.4/5	An investment, but justified by the performance.
Feature set	5.0/5	Complete package: fast, wide, smart, foldable.
Quality for the money	4.9/5	Very solid and durable build.
Availability	4.0/5	Frequently sold out due to high demand.

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Detailed review

The rating tables above give you a quick overview, but numbers alone do not tell the whole story. What do real 18 km/h feel like on a folding machine?

How reliably do the safety mechanisms kick in when you push your limits? Here is my detailed test log, based on my video review and my experience with a mix of home-office use and running workouts.

Overview: what makes the X218 special?

In short: the WalkingPad X218 is a double-folding treadmill with a large running surface, a high top speed and solid build quality. It is aimed at ambitious runners as well as people looking for a reliable treadmill for home workouts and occasional jogging.

• Unfolded dimensions: 162 cm long × 84 cm wide × 108 cm high
• Running surface: 140 × 51 cm, the largest in the WalkingPad range
• Top speed: 18 km/h
• Max. user weight: 136 kg
• Weight of the unit: 58.5 kg
• Folded: 29.5 cm deep, very space-saving

Dimensions and weight matter for your decision. 58.5 kg is no lightweight, but the construction feels robust and the transport wheels help when moving it.

Delivery and unboxing: what to expect

Larger models are delivered by a two-person service right into your home as standard. That saves you a lot of effort, because the package is big and heavy. You get a delivery date in advance, and the drivers call about an hour before arrival.

The accessories include:

• Power cable
• Type G adapter (e.g. for the UK)
• Safety key for the emergency stop
• Allen key for fine-tuning the running belt
• 20 ml of silicone lubricant
• Phone and tablet holder

Transport, setup and folding mechanism

Even on your own, the treadmill is surprisingly easy to move. Important details are the protective materials at sensitive points and the folding handles, which lock in cleanly and are released with an orange lever.

Folding works reliably: the running deck locks into place and the unit can be stored in a space-saving way. When folding, keep your fingers in the middle to avoid pinching.

Before the first start: simple but important steps

Before you get going, a few steps are important so the treadmill runs quietly and reliably in the long term:

1. Oiling: According to the manufacturer, apply 5 to 10 ml of silicone oil. The bottle holds 20 ml, enough for 2 to 4 applications. I spread the oil widely across the deck, lift the belt slightly and then distribute it.

1. Centring: After oiling, align the belt in the middle and press it down. If the belt rubs on the side, it causes noise and increases wear.
2. Insert the safety key: The unit will not start without it. Insert it before switching on the treadmill.

1. Start unfolded: Always switch the treadmill on when unfolded and disconnect it from the power before folding to avoid damage.

My tip for handling the oiling

I place one foot on the rear part of the deck, lift the belt with my free hand and spread the oil evenly. Then let the belt run so the oil spreads. That makes the running feel noticeably smoother.

Display, controls and programs

The X218 has a large, high-quality display with a clear LED strip. Speed changes are smooth, there are pre-programmed intervals, and you can create your own programs.

Important controls and functions:

• P button: Cycles through the preset programs. The higher the program number, the more intense the workout.
• Quick-select buttons: 3, 6 and 9 allow a fast speed selection.
• M button: Manual goals: time, distance or calories.
• Main button: A short press pauses; the workout can be resumed within 10 minutes. A longer press ends the workout and transfers the data to the app if connected.

Programs and flexibility

New are preset programs that change the speed in intervals. I tested program 9: 30 minutes with fluctuations between 4 and 10 km/h. At times it was too intense for me, but the nice thing is that you can turn the speed down during the program without cancelling it completely. After the interval, the unit automatically ramps back up to the preset speed.

Performance test, noise and power consumption

The top speed is 18 km/h. I did not run at that pace myself, but I tested the treadmill at 14 km/h and checked the speed measurement.

During a 30-minute interval program, my live measurement showed a consumption of 0.13 kWh. At an electricity price of 30 cents per kWh, that is roughly 3.9 cents. That is very efficient for a 30-minute workout.

On the subject of noise: the treadmill has a fan that kicks in after about two minutes and runs on for a few seconds when needed. While jogging, it is barely noticeable. I recorded the decibel measurement at a distance of about 1 metre; during light jogging, the unit is not disturbing.

Belt rubbing? How to fix it easily

During my test, the belt drifted to the right and caused cracking noises. That is no big deal, because the correction is done quickly:

1. Use the supplied Allen key on the rear adjustment screws.
2. A quarter turn clockwise on the right side can tighten the belt (depending on the issue).
3. On uneven floors, the feet can be adjusted in height manually. Make sure none of the feet is hanging in the air.

How safe is training? (Emergency stop & child lock)

The safety key responds reliably: if you pull it while running, the belt stops quickly. In addition, a child lock can be activated in the app, which prevents starting completely.

Apple Watch, KS Fit app and heart-rate transfer

A handy new feature is the option to pair the Apple Watch for heart-rate transfer. Setup works via the KS Fit app and the Health app:

1. Install the KS Fit app.
2. In the Health app, select the KS Fit app under Sources.
3. Allow heart-rate synchronisation.

After that, your pulse is transferred live and saved as a graph in the workout summary. The app shows the heart-rate zones in colour, which makes it easier to control your training.

Home-office test: does the X218 fit under the desk?

The X218 can basically be used at a height-adjustable desk. My desk goes up to 127 cm; ideally you should reach that height so the display is neither too high nor too low.

Controlling it via the app is recommended so you can conveniently adjust speed and start/stop. If the Apple Watch is connected, your heart rate is shown and visualised in colour-coded zones. After the session you get a workout summary, and the steps are sent to the Health app if permitted.

My verdict on this: it works. However, if your main goal is working on a treadmill permanently, I would rather recommend a dedicated treadmill-desk setup. As an occasional solution, the X218 is very well suited.

Personal impressions and everyday suitability

What I liked:

• Large, well-cushioned running surface; the belt feels very pleasant when running.
• Sturdy, high-quality display with many useful functions.
• Preset programs with flexible adjustment during the workout.
• Solid folding mechanism and well-designed transport wheels.
• Child lock, silent mode, LED strip can be switched off and a no-load stop function in the app.

What you should consider:

• The handles are not height-adjustable. For taller people they can be harder to reach at running height, but still provide safety.
• At 58.5 kg, the unit is relatively heavy. The two-person delivery therefore makes a lot of sense.
• Availability can fluctuate. The model is occasionally sold out.

Practical tips for everyday use

1. Oil regularly: Not only as recommended by the manufacturer, but whenever you notice friction noises.
2. Centre the belt: Check briefly before every intense run and readjust if needed.
3. Check the feet: None should hang in the air. Adjust them on uneven floors.
4. Use the app functions: Child lock, no-load stop and heart-rate transfer increase comfort and safety.
5. Use a protective mat: It protects the floor, prevents slipping and improves stability.

WalkingPad X218: unboxing without a second person

The two-person delivery service gets the box into your home, but you take the treadmill out of the box yourself afterwards. I was alone for that part, and that is actually the tricky bit. Here is how I solved it: stand the box upright, remove the polystyrene and the film, then cut open one side of the packaging and fold it down. After that you roll the X218 out of the box instead of lifting it. I know this type of delivery from my order in the WalkingPad store; with other retailers the shipping may look different.

A quick-start guide is stuck to the front of the unit; it is worth reading before you switch it on for the first time. You simply slide the phone and tablet holder in at the front, and it feels just as sturdy as the rest. And if the supplied bottle is empty: when buying more, make sure it really is 100 % silicone oil. How I oil and re-centre the belt is covered in detail in my guide on how to oil and centre a walking pad.

WalkingPad X218: create your own programs and control them via the app

You select the programs by repeatedly pressing the P button. While a program is running, the display shows the total duration on the left, the top speed of your run next to it, and the program number on the right. The LED strip gradually fills up, so you can see your training progress out of the corner of your eye without looking at numbers.

After the eleventh program, you can create your own. That is not just a nice extra, it is essential for fast runners: the highest speeds do not appear in any of the standard programs at all. So if you want to use the top of the speed range, you build your own interval yourself. I also liked that the belt slows down faster than it speeds up. If an interval gets too hard, you are immediately slower, while accelerating stays gentle.

At my desk I prefer to control it via the app rather than the display. Once the treadmill is connected via Bluetooth, you start it there with the Go button. These settings are only available in the app, not on the unit:

• Child lock, after which the treadmill will not start at all
• No-load stop: if the belt detects no load for a short time, it switches off
• Mute all sounds
• Turn off the LED strip

Incidentally, the X218 receives its updates over the air. Whether Kingsmith keeps supporting it long-term remains to be seen.

WalkingPad X218 vs. X214 and X21: which one fits you?

The X218’s folding mechanism opens noticeably better than the X21’s – that was my first impression when unpacking it. You pay for that in weight, though: the X218 is a good 21 kg (47 lb) heavier than the X21 and still a good 11 kg (25 lb) heavier than the next smaller X23. This is not a model you roll under the desk and put away again every day.

Model	Speed	Running surface	Max. user weight	Net weight	Folded depth
X218	up to 18 km/h (11.2 mph)	140 × 51 cm (55.1 × 20.1 in)	136 kg (300 lb)	58.5 kg (129 lb)	29.5 cm (11.6 in)
X214	up to 14 km/h (8.7 mph)	121 × 46 cm (47.6 × 18.1 in)	110 kg (243 lb)	43.2 kg (95 lb)	22.5 cm (8.9 in)
X21	up to 12 km/h (7.5 mph)	121 × 46 cm (47.6 × 18.1 in)	110 kg (243 lb)	37 kg (82 lb)	22.5 cm (8.9 in)

My everyday test winner is the X214: lighter, narrower when folded, and it can be muted. You reach for the X218 if you really want to run fast, need more width under your feet, or are above the weight limit of the smaller models.

What the WalkingPad X218 can’t do

• No heart-rate sensor of its own: heart rate comes from a paired Apple Watch via the Health app; the treadmill itself measures nothing.
• The highest speeds are not part of any of the eleven standard programs; for those you have to create your own program.
• Child lock, no-load stop, mute and turning off the LED strip are only available in the app, not on the display.
• You have to lift the unit out of the box yourself; the delivery service only brings it into your home.

For ambitious runners who regularly want to run above 15 km/h, a more permanently installed treadmill with even stronger cushioning might make more sense. For everyone else who values flexibility, space savings and good equipment, the X218 is highly recommended.

Final notes and how to save money

If you buy this model, watch out for promotional discounts. During my test period there was a discount that was applied when adding it to the cart in the WalkingPad store. Availability sometimes fluctuates; if it is out of stock, it is worth asking or signing up for a notification.

Summary

The WalkingPad X218 convinces with:

• a large running surface (140 × 51 cm),
• up to 18 km/h,
• solid build quality and a practical folding function,
• extensive app integration including Apple Watch support,
• efficient energy consumption and sensible safety features.

My personal verdict: a very well-rounded product that does its job excellently in most households. For occasional runs or regular walking, it is a very good investment.

Your questions and feedback

If you have specific questions about using it, adjusting the belt or connecting the app, feel free to send me a message via the contact form.

Thank you for reading this far. Good luck setting up your treadmill and enjoy your runs!

Kingsmith WalkingPad X218: technical data

Feature	Value
Max. user weight	136 kg (300 lb)
Net weight	58.5 kg (129 lb)
Motor	brushless high-performance motor (1,286 W according to the manufacturer)
Speed	1 to 18 km/h (0.6 to 11.2 mph)
Running surface	140 × 51 cm (55.1 × 20.1 in)
Unfolded dimensions	162 × 84 × 108 cm (63.8 × 33.1 × 42.5 in)
Folded dimensions	29.5 × 84 × 108 cm (11.6 × 33.1 × 42.5 in)
Storage	standing up
Controls	KS Fit app, NFC, rotary dial and buttons
Display	LED display in the handrail
Special features	folding side handles, eleven programs plus custom ones, Apple Watch connection

Measurements from my test

What	Result
Noise level	at a distance of one metre: around 48 to 50 dB at 2 km/h (1.2 mph; briefly 54 dB right after starting), around 55 dB at 4 km/h (2.5 mph), around 59 dB at 6 km/h (3.7 mph), around 63 dB at 8 km/h (5.0 mph), around 65 dB at 10 km/h (6.2 mph), 67 to 68 dB at 12 km/h (7.5 mph) and 68 to 69 dB at 14 km/h (8.7 mph); fan kicks in after about two minutes
Power consumption	0.13 kWh for a 30-minute interval program, so around 0.26 kWh per hour
Deck height	running surface approx. 10 cm (3.9 in), 108 cm (42.5 in) with the handrail; a desk around 127 cm (50 in) is needed
Folded dimensions	29.5 × 84 × 108 cm (11.6 × 33.1 × 42.5 in), 58.5 kg (129 lb), stored standing up, delivered by a two-person service
Test scope	at least 10,000 steps (see comparison test), running up to 14 km/h (8.7 mph)

Alternatives to the WalkingPad X218

I have also tested these models, and they are the closest alternatives to the WalkingPad X218.

Further guides

• Walking Pad Speed: 6, 12 or 18 km/h? Which Pace You Really Need
• Walking Pad Weight Limit: Which Models Carry 120, 135 or 136 kg (300 lb)?
• Walking Pad Power Consumption: What Does an Hour of Walking Really Cost?
• Walking Pad Noise: How Loud Are Under-Desk Treadmills Really?
• Foldable Walking Pads: Which Design Fits Your Home?

Frequently asked questions about the WalkingPad X218