Quick answer
The WalkingPad X21 tops out at 7.5 mph, fast enough to jog or run.
Published speed range: 1 to 7.5 mph. That top speed is faster than 0% of the 7 treadmills we track.
Who it fits
Suits users up to about 210 lb with 30 lb of headroom (rated 240 lb) and walkers up to about 7'2" at slow desk pace (6'0" with 6 inches of room to drift), and up to about 5'5" for brisk walking.
Key specs
| Speed | 1 to 7.5 mph |
|---|---|
| Incline | None |
| Weight limit | 240 lb |
| Belt (running surface) | 47.6 x 18.1 in |
| Machine weight | 81 lb |
| Size | 55.8 x 27.9 x 41.4 in; folded 39.6 x 27.9 x 8.8 in |
| Folding | Yes, double fold |
| Handle or handrail | Yes, fixed upright bar |
| Remote | No |
| App | Yes, KS Fit (NFC quick connect) |
| Motor | Brushless; 3.75 HP (WalkingPad.com) or 1.25 HP (KingSmith.com) |
| Warranty | 1 year, optional extension (WalkingPad.com) |
| Type | Treadmill |
| Price tier | Premium tier |
Similar models that go faster
- Horizon 7.4 AT (treadmill, 350 lb, 60 in belt)
- SOLE F65 (treadmill, 350 lb, 60 in belt)
- Goplus Superfit 4.75HP 2-in-1 (2-in-1 walking pad, 265 lb, 49 in belt)
- DeerRun X20 (treadmill, 400 lb)
Side by side:
- WalkingPad X21 vs Horizon 7.4 AT
- WalkingPad X21 vs SOLE F65
- WalkingPad X21 vs Goplus Superfit 4.75HP 2-in-1
- WalkingPad X21 vs DeerRun X20
More about the WalkingPad X21
- Full WalkingPad X21 specs
- WalkingPad X21 weight limit
- WalkingPad X21 belt size
- WalkingPad X21 how heavy
- WalkingPad X21 incline
- WalkingPad X21 does it fold
- WalkingPad X21 remote
- WalkingPad X21 app
Our buying guides
How these pages are built
Every figure comes from the maker's product page, manual or the Amazon listing, and we only include models with a live, in-stock Amazon listing we checked ourselves. When sources disagree on a weight limit we use the lowest number. We do not test these machines ourselves.
Height fit starts from a typical walking step of 0.41 times your height (0.45 when walking briskly), adds 12 inches for your shoe, and 6 more inches of room to drift for a comfortable fit. These are rough guides, not measurements of you. Weight fit leaves 30 lb of headroom above your body weight.
How we researchQuestions
What is the WalkingPad X21 top speed?
The WalkingPad X21 tops out at 7.5 mph, fast enough to jog or run.