Quick answer
Pick the WalkingPad C2 for less weight to move (55 lb vs 81 lb) and a remote; pick the WalkingPad X21 for a higher weight limit (240 lb vs 220 lb) and a wider belt (18.1 in vs 15.8 in).
Specs side by side
Scroll sideways for all specs →
| Product | Max user | Belt | Weight | Speed | Incline | Folds | Remote | App | Size | Warranty | Where to buy |
|---|---|---|---|---|---|---|---|---|---|---|---|
1 WalkingPad C2 | 220 lb | 47.2 x 15.8 | 55 lb | 0.5-3.7 mph | None | ✓ Yesfolds in half | ✓ Yes | KS Fit | 57 x 20 x 5 in unfolded; 32 x 20 x 5.5 in folded | Not published | Check price on Amazon |
2 WalkingPad X21 | 240 lb | 47.6 x 18.1 | 81 lb | 1 to 7.5 mph | None | ✓ Yesdouble fold | ✕ NoNo | Yes, KS Fit | 55.8 x 27.9 x 41.4 in; folded 39.6 x 27.9 x 8.8 in | 1 year, optional extension | Check price on Amazon |
Figures are as published by the maker unless the product section below says otherwise. Hover or tap a cell for the full note. We link to the live price instead of printing one, because prices change daily.
Who should pick which
Pick the WalkingPad C2 if
- you will move it in and out of storage often. It weighs 55 lb against 81 lb.
- you want to change speed without bending down to a console.
- budget matters most. It sits in the mid-range tier.
Pick the WalkingPad X21 if
- you weigh more than about 190 lb. It is rated for 240 lb against 220 lb, and we suggest 30 lb of headroom above your weight.
- you drift sideways while you read or type. A 18.1-inch belt gives more room than 15.8 inches.
- you also want to jog or run. It reaches 7.5 mph against 3.7 mph.
- you want something to hold for balance, for example at faster speeds or on incline.
Fit check
| Model | User weight (with 30 lb headroom) | Height, slow desk pace | Height, with room to drift | Height, brisk walking |
|---|---|---|---|---|
| WalkingPad C2 | up to about 190 lb | up to about 7'1" | up to about 5'11" | up to about 5'4" |
| WalkingPad X21 | up to about 210 lb | up to about 7'2" | up to about 6'0" | up to about 5'5" |
Height fit uses our belt rule: a walking step of 0.41 times your height (0.45 when brisk), plus 12 inches for your shoe, plus 6 inches of room to drift where noted. It is a rough guide, not a measurement of you.
WalkingPad C2
What owners report: WalkingPad C2
Our summary, in our own words, of 20 verified-purchase Amazon reviews we read on 30 October 2026 (the listing then showed 83 positive and 19 critical verified reviews). This is not our own testing.
What they like
- Folds in half and stows under a desk
- Owners use it for hours at a standing desk; one reports 1,000 miles
- KingSmith support gets praise
Common complaints
- 3 of the 10 critical reviews we read say it is louder than expected, with noise at the fold joint
- Several dislike needing the app to unlock features, and some raise data and privacy concerns
- A few report a sticking or dead remote and an unreliable automatic speed mode
WalkingPad X21
Related comparisons
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- WalkingPad C2 vs Egofit Walker Pro M1
- WalkingPad X21 vs WalkingPad Z3 Just Walk
- WalkingPad X21 vs Horizon 7.4 AT
- WalkingPad X21 vs SOLE F65
- WalkingPad X21 vs WalkingPad P1
Full specs: WalkingPad C2, WalkingPad X21.
Our buying guides
- Best walking pads for tall people
- Best compact walking pads
- Best treadmills for walking
- Best walking pads for seniors
- Best walking pads overall
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
Which holds more weight, the WalkingPad C2 and WalkingPad X21?
The WalkingPad X21, rated 240 lb, against 220 lb for the WalkingPad C2.
Which is better for tall people?
The WalkingPad X21 has the longest belt at 47.6 inches, which suits 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, by our belt rule.
Which is lighter to move?
The WalkingPad C2 at 55 lb.