Overview
The WIM S is the second-generation walking-assist robot from WIRobotics, a Korean company founded by former Samsung robotics engineers, and it takes a different approach from the hiking exoskeletons. A single motor at the front of the waist drives both legs through thin, flexible links, so the device weighs 1.6 kg, folds to the size of a small pouch and can be put on in under 30 seconds, and it is pitched at older adults, walkers and rehab patients as much as hikers. The 6 Nm peak is a fraction of the 22 Nm of the Hypershell X Series S, so it is an aid to easier and more symmetric walking rather than a power boost for climbs, and the app's gait coaching is the main selling point. The original WIM launched in April 2024 with CES 2024 Innovation Awards and had sold about 500 units in Korea by January 2025; the WIM S followed with a CES 2025 award and a built-in battery. It is sold direct in Korea with a subscription app tier, care packages and in-store trials, and through physiotherapy dealers in Europe, but the announced US launch has not produced a US store (unconfirmed).
Specifications
| Category | Exoskeletons & exosuits · Consumer & outdoor |
|---|---|
| Released | 2025 |
| Country | South Korea |
| Availability | Available |
| Sales | About 500 WIM units sold in South Korea by January 2025 per the company (estimate for the series). (estimate) PR Newswire ↗ |
| Programmability | No SDK, app / visual programming only |
| Built-in autonomy | Reactive · Responds to its surroundings without a map, such as avoiding obstacles or following a person |
| LLM support | None · No voice assistant or LLM. |
| Best for | Ages 16+ (estimated) |
| Vision sensors | No vision sensors |
| Actuators | Brushless / direct-drive motors |
| Audio | No audio |
| Compute type | Proprietary / undisclosed |
| Control | App-adjusted |
| Weight | 1.6 kg |
| Assistance | A single back-drivable actuator at the front of the waist pulls both thighs through flexible leg links with up to 6 Nm, cutting walking energy by about 20% on level ground in assist mode, with resistance, hiking and slow-gait modes for training and rehabilitation. |
| Joints | Hips |
| Battery & runtime | Built-in 14.4 V, 3.35 Ah lithium-ion battery (about 48 Wh), roughly 2 hours of continuous use, USB-C charging. |
| Operation | Phone app (WIM-UP) with mode selection, assist and resistance levels, real-time gait analysis, a 'gait age' score and daily, weekly and monthly walking scores; a button on the unit powers it on. |
| Sensors | IMUs and an actuator encoder used for real-time gait analysis (stride, speed, symmetry); the exact set is not published. |
| Compute | Not published |
| SDK | None |
Timeline
- Trade showWIM shown at CES 2024 with two Innovation Awards Exoskeleton Report ↗
- ReleasedWIM went on sale in Korea PR Newswire ↗
- AnnouncedUS market entry announced at CES 2025, where the WIM S won an Innovation Award PR Newswire ↗
- ReleasedWIM S released in Korea Official page ↗
Ratings & reviews
Ratings and reviews load on the live site.
Similar robots
Hypershell X Series S
Hypershell Halo
Dnsys X1
Dnsys Z1
Skip MO/GO
Samsung Bot FitImage credits
- Image 1: source (official product image)