Exoskeletons are finally arriving in a form humans can actually tolerate.
It is no longer a pipe dream of sci-fi nightmares. Batteries are lighter. Motors are quieter. The market is flooded. At CES 2023 alone, WI counted 19 exhibitors peddling robotic limbs. Momentum exists.
The problem with previous attempts?
Feel.
Power was never the bottleneck. Timing was. Early models assisted a fraction too soon or lingered a moment too late. You were acutely aware of the machinery. Less “extra leg,” more Toy Story animatronic glitch. Hypershell seems to understand this now. Their new X Series prioritizes synchronization over brute strength. Three models launched today, replacing the old lineup: the Pro S for $999, the Max S for $1,499, and the flagship X Ultra S at $1,999. All share one brain: HyperIntuition. An AI control system designed to fix that robotic jerkiness. I spent two weeks with the top-tier X Ultra S.
Hardware and Gimmicks
Carbon fiber. Titanium alloy. Weighing 5.5 lbs, the Ultra S houses a 1,000-watts motor capable of 22 Nm torque. Top assisted speed? 15.5 mph. Twelve assist modes cover terrain from pavement to dunes. Even snow. The cheaper siblings get fewer modes.
The real story is the software. HyperIntuition ditches the old rule-based logic (“leg moves, add power”) for real-time adaptive torque. It acknowledges that human movement is messy. We stop. Start. Shuffle. Climb. Old exoskeletons treated you like a machine on a treadmill. This one claims to treat you like a person walking on dirt. Hypershell promises a response time of 031 seconds and “human-machine synchronization” of 975 percent. A vague stat. But the goal is clear. Power arrives when your muscle wants it, not when a sensor says you are technically moving.
Setup is simple enough. The app guides you. Fit is everything. Motors must align with the hip. Straps must hold but not strangle. The padding around the hips on the Ultra S is significantly improved. Comfortable. But let’s be honest. 5.5 pounds is still weight. It does not vanish.
There are ergonomic realities, too. Front pocket access? Gone. Backpacks sit awkwardly atop the battery. If you are a hiker with a loaded pack, this design creates conflict. You need a small daypack, mounted high, or you are fighting the gear.
Control comes via an app or a single button on the right hip. The button scheme—long press, short press—is clunky. Easy to accidentally activate Hyper mode at the worst moment. The app is where the actual work happens. Tweak percentages. Check battery. Switch modes.
Powering Up
Your legs do not want to be moved by a computer.
It feels wrong at first. Even after weeks of wearing the X Ultra S, there is a three-minute adjustment period. Older models jerked your stride. You waited for the “lock” before assistance kicked in properly. The Ultra S is better. Unless you idiotically enable “Hyper Running” mode, which makes you walk like a confused loon, the power delivery has progression. It ramps up.
Walking is still not “natural.” Never will be, really. But stopping and starting? Much smoother. When I ambled while waiting for someone, the unit backed off power instantly. When I picked up the pace, the machine matched me. I felt in control. A driver, not a beta-tester passenger.
I am fit. On flat ground, the Ultra S felt unnecessary. I cranked the power down. Just felt strapped to expensive metal. Then we hit a hill. Immediate impact. My legs lifted. The slope steepened. The exoskeleton pushed back. Effort dissolved.
I had my wife, Louise, try it. Initial reaction? Hatred. After proper fitting and me stopping my constant fiddling with power settings (I love being Gepetto, I know), she admitted something.
“I see the point for hills. Running in this is horrible. But the uphills?” She smiled. “It pulls you up.”
After 40 minutes, she swapped back to normal legs.
“Oh wait. Now I’m walking through treacle.”
My own legs felt sluggish, heavy. The 50-percent Eco mode I had been using felt minimal. Yet. It had trained my muscles to rely on the boost. A subtle psychological and physical trap.
Running and Cycling Are Bad Ideas
Hypershell claims the Ultra S excels at running. I call BS. Running is miserable in this. It strips away the freedom of stride. It feels overcooked, mechanical, restrictive. The “Hyper” mode might work for elite athletes with perfect form, but for me, it was a battle against the frame.
Cycling is… functional. Put your bike in a high gear. The assistance propels you. But comfort? Poor. You don’t save energy. You just feel like pedaling harder because it’s there. Assistance cuts off at 155 mph anyway. It lacks the seamless effortlessness of a dedicated e-bike. Plus. Mounting a bicycle with two carbon fiber rods across your back? Good luck. Slinging a leg over the top tube is nigh impossible. A nice extra feature. A practical nightmare.
Battery Life Is the Weak Link
The battery takes the beating.
To make the exoskeleton powerful yet light, you sacrifice endurance. The advertised 18-mile range includes carrying the spare battery. Not just the one inside the suit.
In my forest walk test, the math was harsh. Starting with 81-percent battery. 75-percent Eco mode. The app predicted 4.2 miles of runtime. Increase the power for hills? Down to 19 miles. Not exactly an adventurer’s dream. You can manage flat ground by lowering the assistance to merely offset the 5.5-lb weight. But on technical trails? You will need that second battery. And a strict power plan. Or you get stranded.
Who Actually Wants This?
Marketing shows fit hikers cresting ridges.
The disconnect is glaring. If you can hike like that naturally, do you really need to spend nearly two grand on robotic assistance? There is a market misalignment. Who benefits most from reduced heart rates and lower leg exertion? Seniors. In 2024, US participation in outdoor activities for seniors grew by 74-percent year-over-year. Older adults want the mountains too.
Hypershell’s lab tests show heart rate drops of 43-percent when cycling, 23-percent on inclines. Muscle activity reductions of 64-percent. The data supports older, less athletic users. The ads show millennials on peak performance. Perhaps a strategy adjustment is needed.
Misgivings exist. Battery anxiety. Price. The sheer weight on the hips. But mechanically? The HyperIntuition algorithm changes everything. It makes the assistance intuitive. The 1,000-Watts motor works with you, rather than dragging you along. On a steep incline, the relief is tangible. Real.
The X Ultra S is currently the best exoskeleton money can buy. It works. It reduces fatigue. It is finally a device you might actually want to wear, provided you don’t need it to run, or bike comfortably. The era of the exoskeleton as a clunky prototype is ending. This is the next phase.
