WalkingPad X21
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SPACE-SMART DESIGN
Stores vertically against a wall or in a corner, helping you maintain a tidy and uncluttered living space.
FOLDS NEATLY AWAY
Designed to fold upright in just two quick steps, making storage straightforward and hassle-free.
HOME FITNESS MADE SIMPLE
Keep moving every day and reach your step goals without worrying about the weather, travel time, or busy schedules.
EASY TO MOVE
No need for heavy lifting. Built-in transport wheels and a durable aluminium frame allow smooth movement from room to room.
READY TO USE
The WalkingPad X21 arrives fully assembled, so you can simply unbox, unfold, and get started straight away.
SAFE FOLDING LOCK
A reinforced locking system keeps the deck securely in place when folded, adding peace of mind for households with children or pets.
PRECISION SPEEDDIAL™ CONTROL
Turn the dial quickly for a noticeable speed increase, or adjust gradually in small increments to find your ideal pace.
DEVICE HOLDER
Conveniently supports your phone or tablet, so you can follow workouts or enjoy entertainment while exercising.
3.75 HP BRUSHLESS MOTOR
Delivers smooth and consistent performance while operating at below 65 dB for quieter workouts.
110 KG MAX USER WEIGHT
A sturdy frame ensures reliable support and a stable, comfortable feel underfoot.
46 CM WIDE RUNNING AREA
Offers ample space for a natural and confident stride.
1–12 KM/H SPEED RANGE
Suitable for both brisk walking and light jogging at your own pace.
SoftStep™ Cushioning
Advanced shock absorption helps reduce impact on joints for a more comfortable workout.
BUILT TO LAST
Built with durable materials and tested for consistent performance over time.
FREE KS FIT APP
Sync your workout data for smart insights and real-time tracking, including Apple Watch compatibility.
BLUETOOTH
Connect to compatible fitness apps for guided sessions and simple remote operation.
Awards For The Best In Design
Our foldable treadmills and benches have earned global design awards for their innovative space-saving folding design, refined aesthetics, advanced manufacturing, and user-friendly functionality.
Red Dot Design Award for 2019, 2022, 2026
IF Design Award for 2019, 2022
Red Dot Design Award for 2019, 2022, 2026
GET FITTER ANYTIME, ANYWHERE
Take A Closer Look
| Technical Parameters | |
| Product Name : | WalkingPad X21 Foldable Treadmill |
| Speed Range : | 1–7.5 mph (12 km/h) |
| Running Area : | 47.6 x 18.1 in / 1210 x 460mm |
| Weight Capacity : | 240 lb (110 kg) |
| Motor : | 3.75 HP Brushless motor |
| Net Weight : | 81 lb / 37KG |
| Gross Weight : | 92 lb / 42 KG |
| Remote Controller : | No |
| Speed Adjustment : | App | SpeedDial™ knob |
| Handrail Adjustment: | NO |
| Foldable: | YES |
| Assembly: | Fully assembled |
| Shock Absorption: | EVA & PET |
| Voltage: | 220V |
| Product Dimensions | |
| Folded Size : | 39.6 x 27.9 x 8.8 in (1007 x 711 x 225 mm) |
| Unfolded Size : | 55.8 x 27.9 x 41.4 in (1419 x 711 x 1053 mm) |
| Packaging Size : | 43 x 31 x 10 in / 1102 x 795 x 264mm |
| Package Included | |
| WalkingPad x 1 | Power Cord x 1 |
| Phone holder x 1 | Safety key x 1 |
| Wrench x 1 | User Manual x 1 |
| Additional Option | |
| APP : | KS Fit |
| Apple Watch : | Yes. Connect the KS Fit app to your iPhone and pair it with your Apple Watch. If heart rate data doesn't appear, ensure both devices are properly connected. |
| Color option : | Gray |
WalkingPad X21 Slim Treadmill Questions
1. How to change the rotating display from Chinese to English?
1. How to change the rotating display from Chinese to English?
I hope the following methods will help you: 1. Press and hold the control button of the X21 thin treadmill for 3-4 seconds, then insert the safety key (keep holding the control button) to enter engineering mode (you will have successfully entered engineering mode when "F1" appears on the lower distance display).
2. After entering engineering mode, press the control button to switch settings until "CH" appears on the calorie panel. Turn the knob slightly to the left until "EN" appears on the calorie panel. Once the switch is successful, press and hold the control switch without releasing it - after 3 seconds, the language will have been successfully switched. Please let me know if you have any questions.
2. How heavy is this when you've used it and want to fold it up and put it away?
2. How heavy is this when you've used it and want to fold it up and put it away?
The WalkingPad X21 ultra-slim folding treadmill for home use weighs 38kg (84lbs) and is equipped with two wheels and a handrail, making it easy to move around.
3. Can this also be stored horizontally under a bed?
3. Can this also be stored horizontally under a bed?
Yes, of course. The X21 foldable slim treadmill can be placed flat or vertically against the wall, and it is more convenient to store it upright.
4. Are you able to run at a decent pace with this or is it mostly just for walking?
4. Are you able to run at a decent pace with this or is it mostly just for walking?
The X21 super slim treadmill tops out at 7.5 MPH, which is fast enough to start a full-speed run.
5. How fast does this go? Does it incline?
5. How fast does this go? Does it incline?
The fastest speed of the x21 slim running treadmill is 12km/h. Because the design of incline will affect the usage of fold function, x21 treadmill isn't incline.
6. Does my treadmill slow down when I step on it?
6. Does my treadmill slow down when I step on it?
No, it doesn't. Because the X21 foldable treadmill doesn't have a walking mode, only a running mode. The X21 can't adjust speed with your feet, so it can't slow down when you step on it.
7. How treadmill helps to lose weight?
7. How treadmill helps to lose weight?
The X21 slim foldable treadmill is portable and easy to store. It prevents your workouts from being interrupted by bad weather or a busy schedule, offering you more freedom to exercise. This encourages you to move more, burn more calories, boost your metabolism, and ultimately lose weight.
8. Where to store treadmill?
8. Where to store treadmill?
Utilizing double-fold technology, and with the help of rollers and a handrail, the X21 can be placed flat or vertically against the wall. It is more convenient to store it upright, as it only requires a small space, allowing you to store the X21 slim treadmill easily.
9. Why treadmill running is good for you?
9. Why treadmill running is good for you?
Because the X21 portable slim treadmill uses high-end leading wear-resistant material for its EVA buffer layer, it ensures strong cushioning to protect your ankles and knees. You won't have to deal with muddy roads, and bad weather won't stop your workouts - making the X21 the best under-desk treadmill to buy for home use, helping you stay healthy and safe.