When Your Treadmill Becomes a Game Console: A Chat with the Folks Behind Immersive Roaming

You know that treadmill in the corner? The one that's become a very expensive clothes rack? Yeah, I've got one too. The team behind Immersive Roaming saw this universal problem and thought, what if we could make people actually want to step on that thing? Their answer is an app for Huawei's smart screens that turns your feet into a game controller. No more staring at a wall while you run—you're dodging obstacles in a 3D world or strolling through a 4K forest.

I caught up with them at HDC 2026, and they're not shy about admitting their original idea was pretty basic. "We just wanted to make exercise less boring," said Zhou Jing, the product lead. "Nobody sticks with a treadmill if it's a drag."

The Treadmill's Curse

Why do most treadmills end up unused? It's not the running—it's the monotony. Running in place while watching the same TV shows? That gets old fast. The team realized they weren't just building a better treadmill app; they were trying to solve a motivation problem.

Zhou put it simply: "We wanted to turn 'I have to exercise' into 'I want to go play for a bit.'" That's a big shift. Traditional fitness apps focus on calories and heart rate, but this one focuses on fun. It's about making that first step easy, even if you're just shuffling along at your own pace.

From Solo Workout to Family Hangout

Originally, they thought their audience was busy professionals who couldn't make it to the gym. But at HDC, they noticed something unexpected: kids were lining up to play the games, and older folks were asking about stability and cushioning. The product was pulling in a whole range of ages.

So they leaned into it. Now it's less about being a fitness tool and more about being a family entertainment center. "The journey of a family member getting on the machine became a shared experience," Zhou said. Kids chase virtual dragons, grandparents take gentle walks through digital landscapes—it adapts to you, not the other way around.

Why HarmonyOS? (And Why Not Just Make an App for Everything?)

Good question. Why build exclusively for Huawei's HarmonyOS instead of casting a wider net? Zhou's answer was about fragmentation: "Other TV ecosystems are a mess—different brands, different capabilities, no unified experience."

HarmonyOS offered something they needed: seamless device-to-device communication. The treadmill machine has to talk to the smart screen in real-time, and HarmonyOS's distributed architecture keeps that latency low. For a product where your footstep needs to translate to on-screen movement instantly, that's make-or-break.

The Tech That Makes It Feel Real (and the Headaches Along the Way)

Getting it to feel "natural" was no walk in the park. Early SDK versions only had 2D skeleton tracking, which meant the system might confuse a bystander with the user. That's a problem when you're demoing at a crowded expo. Fortunately, HarmonyOS later added a user-locking feature that tracks a specific person, so random passersby don't mess things up.

Then there's the performance issue. Smart TVs aren't exactly powerhouses. The team found their 3D characters wouldn't move because the models were too heavy for the TV's chipset. They had to compress models, strip down resources, and find a balance between pretty and playable. It was a lot of trial and error, but they got there.

Connectivity was another hurdle. Bluetooth was too slow—you'd tap your foot and the screen lagged. They switched to Huawei's NearLink (星闪) technology, which dropped the delay to nearly imperceptible levels. That's the difference between feeling connected to the action and feeling like you're controlling a remote puppet.

What's Next: Multiplayer and Health Integration

People kept asking two things at HDC: "Can I play with my friends?" and "Will it track my health?" The answer to both is coming.

They're working on online multiplayer and companion modes, so you can exercise with a friend even if they're miles away. And they're integrating with Huawei Health to suggest workouts based on your history. Imagine stepping on the machine and it says, "Hey, you've had a rough day—how about a gentle 15-minute walk in the woods?" Or for the kids, "Let's chase some dragons and burn off that sugar rush."

More Than Just a Treadmill

So what's the difference between this and a regular treadmill? It's not the hardware—it's the mindset. A treadmill is a tool; Immersive Roaming is an invitation. It turns your living room into a playground where moving doesn't feel like exercising. It's the kind of thing that might actually get you to use that dusty machine again.

Zhou summed it up: "We're not just building a device; we're building an experience that makes people want to move." And honestly? In a world where we spend too much time sitting, that's a welcome change. The real test isn't whether the tech works—it's whether families will keep coming back for another round.