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Product details

Description

The King Smith X21 is a minimalist’s dream! This stunning ultra-thin folding treadmill has won several design awards including the Red Dot Award and IF Design Award for impressive visual design and the patented double-fold technology. Gone are the days of ugly treadmills and cheap walking pads, we are proud to offer a space saving and space enhancing way to run and walk at home. The X21 by King Smith is a refined treadmill in both form and function.

  • Innovative Folding Treadmill: The double-folding feature reduces space by storing upright against a wall or in a closet.
  • Easy and Intuitive Control:  A simple twist of the Speed Dial increases the speed, no more struggling to push a button while walking.
  • Stay on Track:  All your workout information is stored in the KS Fit app to help keep you progressing toward your weight loss goals.
  • NFC Pairing:  The interaction interface can be accessed directly using NFC (For Android).
  • Detachable Phone Holder: Walk while you watch a show or viral video with your phone conveniently close.
  • Built Beautifully: This stunning treadmill is not just built to last, finished in classy black the X21 is one good looking treadmill.
Technical Parameters
Technical Parameters
Product Name :

WalkingPad X21 Foldable Treadmill

Speed Range : 1 - 7.5MPH / 12KPH
Running Area : 47″ * 18″ / 1200 * 460mm
Weight Capacity : 243 lbs / 110KG
Motor  : 1.25 HP Brushless motor
Net Weight  : 82 lbs / 37KG
Gross Weight  : 93 lbs / 42 KG
Remote Controller  : No
Speed Adjustment : App | SpeedDial knob
Handrail Adjustment: NO
Foldable: YES
Assembly: Fully assembled
Shock Absorption: EVA & PET
Product Dimensions
Folded Size : 39.6″ * 27.9″ * 8.8″ / 1007 * 711 * 225mm
Unfolded Size : 55.8″ * 27.9″ * 41.4″ / 1419 * 711 * 1053mm
Packaging Size : 43″ * 31″ * 10″ / 1102 * 795 * 264mm
Package Included
WalkingPad * 1 Power Cord * 1 
Phone holder * 1  Safety key * 1 
Wrench * 1  User Manual * 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  : Silver Gray

Folding & Refined Fitness

Our ultra-thin X21 folding treadmill folds vertically to size of a suitcase so you can exercise and then easily move it out of the way. This is truly the best treadmill you will find, it fits almost anywhere in any size home.

Everything Within Arms Reach

All the controls are built into the Speed Dial. Press to start, turn right to speed up, left to slow down and when done, a light press brings you to a gradual stop. The speed ranges from 1 - 7.45MPH.

Superior Looks, Superior Quality

We built the X21 slim treadmill with an all-aluminum alloy frame coated in a black finish. The end result is a stunning and stable treadmill that is built to last.

NFC Connected Control

Use the free KS Fit app to access all your workout data and even control your X21 slim home treadmill via the NFC. smart sensors.

#Spotlight

More innovative design, more attention to detail

Wear-Resisting Wheels

Made of long lasting polymer to keep rolling and rolling

Removable Device Shelf

Keep your phone where you need it

Power On and Walk

Easy on and easy off

Run Upstairs While they Sleep Downstairs

Barely audible for you and anyone nearby. No worries about getting your workout in while others sleep in the room next door or the floor below.

4-Layers of Cushion and Comfort

Running outside on the pavement is hard on your body. We have built the X21 slim treadmill to remove some of the impact so you can keep going.

FAQs

Please read our FAQs page to find out more.

How to change the rotating display from Chinese to English?

I hope the following methods can help you: 1. Press and hold the X21 thin treadmill control button for 3-4 seconds, and plug in the safety key(Keep the control button pressed) and enter the engineering mode (when your distance below shows F1, you have successfully entered the engineering mode).

2. After entering the engineering mode, switch the settings by pressing the control button until the calorie panel shows CH, turn the knob a little to the left until the calorie panel shows EN, and after successful switching, press and hold the control switch without releasing it, and after 3 seconds you have successfully switched the language. Please let me know if you have any questions.

How heavy is this when you've used it and want to fold it up and put it away?

King Smith x21 ultra slim folding treadmill for home is 38kg (84lbs), and it has two wheels and a handrail to wheel it away, so it can be moved easily.

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's more convenient to put it upright.

Are you able to run at a decent pace with this or is it mostly just for walking?

x21 super slim treadmill tops out at 7.5 MPH, it's a quick enough speed to start a full-speed run.

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.

Does my treadmill slow down when I step on it?

It doesn't. Because the x21 foldable treadmill doesn't contain walking mode, only holds running mode, the x21 can't adjust speed by feet, then it can't slow down when step on it.

How treadmill helps to lose weight?

The x21 slim fold treadmill is portable and convenient to store, which avoid your workout be stopped by bad weather and busy work, and offers more freedom for you to exercise, push you to move more, burn more calories and increase metabolism, then lose weight.

Where to store treadmill?

Used double-fold tech, with the help of rollers and handrail, x21 can be placed flat or vertically against the wall, and it's more convenient for put upright, only need a small place, you can store x21 slim treadmill.

Why treadmill running is good for you?

Because x21 portable slim treadmill adopts high-end patent wear-resistant material on the EVA buffer layer, which ensures high cushioning ability to protect our ankles and knee, you don't need to face the muddy road, and poor weather can't stop off your workout, so x21 is the best buy under desk treadmill at home for you to keep health and safety.

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