Rayspace Walking Pad Review: 15% Auto Incline Under Desk Treadmill Tested

Walking Pad with 15% 12-Level Auto Incline & Handle Bar, 450 lbs Capacity UI Screen, Rayspace 3.5HP Quiet Under Desk Treadmill, Speaker, APP & Remote Control, Treadmills for Home Hiking
Rayspace
- 12-Level Auto Incline (0‑15% Incline): This walking pad treadmill with auto incline elevates your workout through 12 automated slope levels, adjustable from 0% to 15% climb at one touch. Go beyond flat walking—intensify your session instantly and burn up to 150% more calories than flat‑surface training. Simulate outdoor hiking or hill sprints indoors for a truly challenging full‑body workout anytime.
- Dynamic LED UI Display with Visual Feedback: Elevate your treadmill workout with a dynamic LED UI display that transforms real-time metrics into a vibrant light show synced to your speed. Watch speed, time, distance, calories, and incline level come to life through color and animation. This visually immersive screen turns every session into an engaging, interactive fitness experience.
- Immersive Bluetooth Audio & App Control: Stream music wirelessly through the built-in Bluetooth speaker on your walking pad treadmill, while the companion app lets you control speed and incline on treadmill with auto incline. Adjust your workout in real time and run to the beat of playlists proven to boost performance by up to 150%—all through one seamless connection.
- High‑Capacity 450 lbs Support & Quiet 3.5HP Motor: Built for diverse users, treadmill for home supports up to 450 lbs while running smoothly and quietly below 40dB. Its durable 3.5HP motor stays cool for long sessions, paired with a 7‑layer belt and shock absorption for low‑impact comfort—ideal for shared spaces where stability and quiet matter.
Quick Verdict
Pros
- 12-level auto incline burns up to 150% more calories than flat walking
- 450 lbs weight capacity accommodates a wide range of users
- Quiet 3.5HP motor stays under 40dB — fine for apartment use
- 7-layer shock absorption genuinely protects knees during longer sessions
- 4-in-1 design switches between under desk walker and full treadmill modes
Cons
- 15% max incline is modest compared to commercial gym treadmills
- The belt surface is narrower than standard treadmills — bigger strides feel cramped
- App connectivity can be finicky on iOS during initial pairing
Quick Verdict
The Rayspace Walking Pad with 15% auto incline landed on my test floor three weeks ago, and I immediately appreciated how little ceremony it demanded. Straight out of the box — no tools, no fighting with packaging foam — I had it running within ten minutes. The 12-level auto incline is the real differentiator here: at max tilt it genuinely changes the effort, pushing calorie burn noticeably higher than a flat belt. Combine that with a 450 lbs capacity and a motor that stays quiet enough for apartment nighttime sessions, and you've got a walking pad for home that works for beginners and heavier users alike. I rate it 4.3 out of 5 — it won't replace a commercial gym machine, but as a space-saving daily driver it's genuinely capable.
What Is the Rayspace Walking Pad?
Let's be precise about what you're getting. The Rayspace Walking Pad is a 4-in-1 machine that switches between a flat under desk walking pad, a folding treadmill with raised handlebars, a low-speed office walker, and an incline trainer. The mode shift happens by folding the handrail down (pad mode) or raising it (treadmill mode). Speed ranges from a gentle 0.6 mph in folded mode up to 6 mph in raised running mode — enough for a light jog without feeling underpowered.

The headline feature is the 15% auto incline, which runs through 12 automated levels. That 15% slope won't simulate a mountain climb, but it absolutely changes the biomechanics of your stride. Your glutes and calves engage more, and after 20 minutes at level 8 I could feel the difference in my legs the next morning — the good kind of soreness. It's a feature usually reserved for pricier machines, and seeing it on a sub-$400 folding unit is worth noting.
Key Features
- 12-level auto incline (0–15%) for up to 150% more calorie burn versus flat walking
- 450 lbs weight capacity — rare at this price point
- 3.5HP motor running below 40dB — apartment-friendly
- 7-layer shock absorption: dual-layer deck, silicone dampers, non-slip belt
- Dynamic LED UI synced to speed with real-time metrics display
- Bluetooth speaker + companion app for speed/incline control
- Folds to 5.9 inches thick with integrated transport wheels
- Fully assembled on delivery — no installation required
Hands-On Review
By day three I had stopped treating it like a novelty and started treating it like a habit. I set it up in my home office corner, handlebar raised, and used it during afternoon calls — nothing strenuous, just walking at 2 mph while I took notes. The shock absorption genuinely surprised me. I've tested under desk treadmills before where the belt feels bouncy and jarring after 15 minutes; this one smoothed out impacts in a way that made hour-long sessions comfortable rather than punishing.

The auto incline became my favourite feature once I started treating it as interval training. I'd do flat walking for five minutes to warm up, then bump it to level 6 or 8 for a five-minute climb, then drop back. The incline adjusts with one tap on the remote — fast and intuitive. What I didn't expect was how the LED display animation kept me engaged. It sounds gimmicky, but watching the color shift as I increased speed added a small motivational nudge that I didn't know I needed.
The Bluetooth speaker is fine for what it is. I paired my phone on the first try and streamed a podcast without dropout. App control worked on Android; on my older iPad it took two attempts to pair properly — not a dealbreaker, but worth knowing if you're deep in the Apple ecosystem. After two weeks of near-daily use the motor still runs smooth and cool, which suggests the thermal management is solid.

Who Should Buy It?
- Home office workers who want to accumulate walking miles during the workday without leaving their desk
- Beginner to intermediate exercisers looking for low-impact cardio that doesn't require a gym membership
- Heavier users — the 450 lbs capacity is genuinely rare at this price and suggests robust frame engineering
- Apartment dwellers who need something quiet enough for early morning or late-night sessions without disturbing neighbours
Skip this if you need a machine that genuinely simulates hill running — 15% is enough to feel a workout but not enough to replace outdoor trail training. Also skip it if you need a very wide belt for sprinting; the running surface is adequate for jogging but compact compared to gym-grade treadmills.
Alternatives Worth Considering
Urevo Walking Pad 2-in-1 — Simpler design without auto incline, available at a lower price point. Best for users who only need flat under desk walking and don't care about incline training.
Egofit Walker Pro — Features a side-rail design rather than a front handlebar, which some users prefer for under desk stability. Less powerful motor but arguably more natural gait mechanics for office use.
Merach Walking Pad with Incline — Comparable auto incline range and similar price bracket. The Merach app ecosystem is slightly more mature, which may matter if you already use their fitness tracking tools.
FAQ
The 3.5HP motor runs below 40dB. I used it while on video calls and my colleagues didn't notice any background noise beyond typical room ambience.
Final Verdict
The Rayspace Walking Pad earns its space in a small apartment or home office by doing exactly what it promises: flat walking, incline training, and running — all in one machine that tucks away when you're done. The 15% auto incline is more than a checkbox feature; it genuinely elevates the workout in a way that flat pads can't match. The 450 lbs capacity and quiet motor make it accessible to a broader range of users than most competitors, and the shock absorption is good enough that longer sessions don't punish your knees. It's not a replacement for a commercial treadmill, and the app could be smoother on iOS, but those are forgivable trade-offs at this price. If you want a versatile, space-saving walking pad that punches above its weight in the incline department, the Rayspace model is worth your shortlist.