
WalkingPad X21
A double-fold treadmill that treats home fitness equipment as compact furniture.
Key Facts
Product type
Double-fold home treadmill
Speed
7.5 mph on the official product page
Storage
Vertical fold storage and suitcase-size folding in official materials
Retail price
USD $799 sale price on the official US store when reviewed
What It Is
A foldable home treadmill for walking and running in compact living spaces.
Why It Matters
KingSmith shows how Chinese fitness hardware can use industrial design and folding mechanics to reshape a category dominated by bulky equipment.
Best For
Apartment users, remote workers, people building a compact home gym, and buyers who need a treadmill that can disappear after use.
Not For
Heavy training, wide-deck running, or buyers who want a commercial-gym treadmill feel.
Buying Notes
Check user weight, running speed, deck size, and noise expectations before buying.
Folded storage still needs floor and wall clearance.
Service and replacement parts matter because treadmills are motorized fitness equipment.
Selection Signals
Visual Detail
Foldable treadmill with upright storage, 7.5 mph speed, SpeedDial control, and award-recognized industrial design.
Brand Context
Chinese brand with product, design, and market identity distinct from contract manufacturing.
Brand Identity
KingSmith's official materials describe the company as founded in Beijing, China, and connect the WalkingPad line to Xiaomi crowdfunding history.
Brand Profile
Open the public brand page for KingSmith WalkingPad.