Sperax Walking Pad vs WalkingPad C2
Two of the most popular under-desk walking pads for apartment dwellers. The Sperax is a flat-deck design; the WalkingPad C2 folds in half. Which storage approach wins in a small space?
Quick specs comparison
| Spec | Sperax Walking Pad | WalkingPad C2 |
|---|---|---|
| Speed range | 0.5–6 mph | 0.5–3.7 mph |
| In-use dimensions | ~55″ × 21″ × 5″ | 56.9″ × 20.4″ × 4.9″ |
| Folded / stored dimensions | Not foldable — slides under furniture at 5″ height | 32.5″ × 20.4″ × 5.4″ (folds in half) |
| Weight | ~55 lbs | ~55 lbs |
| Weight capacity | 320 lbs | 220 lbs |
| Motor | 2.5 HP peak | 2 HP peak |
| Noise level | Manufacturer claims <45 dB | Manufacturer claims <40 dB |
| Controls | Remote + app | Remote + KS Fit app |
| Approximate price | ~$200–$260 | ~$300–$450 |
Detailed comparison
Folded dimensions & storage
The WalkingPad C2's signature feature is its 180° fold — it halves its length from ~57 inches to ~33 inches, making it genuinely closet-storable or leanable against a wall. The Sperax doesn't fold at all, but at only 5 inches tall, it slides under most beds and couches. Both approaches work — the question is whether your apartment has under-furniture clearance or closet space.
Edge: WalkingPad C2 — folding is more versatile for storage variety.
Noise level
The WalkingPad C2 claims sub-40 dB operation. The Sperax claims sub-45 dB. In practice, both are quiet enough for apartment use at walking speeds. The difference becomes more noticeable at higher speeds — but the C2 maxes out at 3.7 mph (walking only), so it stays quiet by design. The Sperax can push to 6 mph (light jogging), where motor noise increases noticeably.
Edge: WalkingPad C2 for noise — by design, it stays in the quiet zone. Sperax for versatility — if you want occasional jogging.
Speed range
The Sperax offers up to 6 mph — fast enough for a light jog. The WalkingPad C2 maxes at 3.7 mph — strictly a walking pad. If "walk while working" is the entire use case, the C2's range is fine. If you want the option to break into a jog, only the Sperax delivers.
Edge: Sperax — significantly wider speed range.
Weight capacity
The Sperax supports up to 320 lbs; the WalkingPad C2 supports 220 lbs. For larger users, this is a deciding factor. The Sperax's 100-lb advantage in weight capacity also suggests a sturdier deck.
Edge: Sperax — significantly higher weight limit.
Price
The Sperax typically sells for $200–$260, while the WalkingPad C2 runs $300–$450. The Sperax offers more for less on paper (higher speed, higher weight capacity, lower price). The C2 charges a premium for the fold mechanism and the WalkingPad brand (Xiaomi ecosystem).
Edge: Sperax — considerably cheaper with more features.
The verdict
Choose the Sperax if…
- You weigh over 220 lbs
- You want the option to jog (up to 6 mph)
- Budget matters — it's $100+ cheaper
- You have under-bed or under-couch clearance for storage
Choose the WalkingPad C2 if…
- Folding storage is essential (closet, behind a door)
- Maximum quiet matters — it's whisper-level at all speeds
- Walking-only is your use case (no jogging needed)
- You value the Xiaomi/KS Fit app ecosystem
Our lean for apartments: The Sperax is the better value on paper — more speed, more weight capacity, lower price. But if storage flexibility and absolute quiet are your top priorities (and you won't jog), the WalkingPad C2's folding design is genuinely clever for tiny spaces.
Where to buy
Sperax Walking Pad
- Storage: Slides under furniture (5″ tall)
- Capacity: 320 lbs
- Noise: <45 dB claimed
WalkingPad C2
- Storage: Folds in half (32.5″ × 20.4″)
- Capacity: 220 lbs
- Noise: <40 dB claimed