Beyond the limit
Stop when you want to,
not when your
body makes you
We work, study, and lose ourselves in what we love. The will is still there — but the body stops first. With precise ergonomics, LENIF pushes that limit back, so your will, not your body, decides the time.
Approach
Same hours seated,
a different cost
to your body
The body has a threshold. Even within the same hour, how you sit decides how fast you reach it.
Everyone’s optimum is different
Bodies, sitting habits, and what you’re trying to do all vary. One “good posture” doesn’t solve it.
Ergonomics × data read the difference
We measure and validate what slows the approach to your limit.
The environment pushes the limit
Guiding posture and distributing load to extend the time before the threshold.
The chair is a starting point
Desk, peripherals — the whole environment for getting things done, seen as one system.
Products & Services
From chairs to services —
the whole sitting environment
LENIF’s products and services start with a range of ergonomic chairs fitted to different bodies, and extend to software and data services that read and support how you sit. Not a single chair — the whole environment for getting things done.
Ergonomic chairs
A range that adjusts to your body, slowing how fast it reaches its limit.
View productsPosture & fatigue models
Posture-inference and musculoskeletal fatigue models that add ‘sitting data’ to furniture and services.
Collaborate with usTechnology & Projects
Adding ‘sitting data’ to furniture
LENIF defines ergonomic sensing and IoT modules, and together with furniture manufacturers has integrated over 4,000 modules. Connecting design, hardware and data analysis, we put ‘sitting data’ into products.
Projects · 2021–2025
2021 · patra collab
Alarm Chair
A smart chair built with Patra — an ultra-low-power posture-inference algorithm suggests rest based on accumulated fatigue.
2022 · LENIF in-house
LiDAR posture & fatigue model
Developed in-house at LENIF. A model that scans space with a LiDAR sensor to infer seated posture and compute accumulated fatigue per body region.
2024 · SIDIZ collab
Ergonomic Sensing Pilot
A proof-of-concept with Sidiz validating ergonomic sensing modules in furniture — carrying a model that infers seated posture and joint angles and computes accumulated fatigue.
2025 · LEANBACK collab
Smart Chair S1
Completed with Leanback, the IoT Smart Chair S1 carries the Posebit service — inferring posture in real time, computing accumulated fatigue, and suggesting stretches and rest. Unveiled at CIFF Guangzhou 2025.
Our technology
Before fatigue builds,
we know the moment to move
LENIF’s technology begins by reading — through data — what the body goes through while seated. Even for the same hours, the pace at which fatigue builds differs from person to person with posture and surroundings. Since 2022 our in-house LiDAR posture-fatigue model has read that difference, and the understanding flows into how we design chairs and services. Fatigue here is an estimated index from posture and time, not a directly measured value.
POSE INFERENCE & TRACKING
Pose inference & tracking
LiDAR and vision infer your seated posture and track its change over time. (A reference estimate.)
ACCUMULATED FATIGUE
Accumulated fatigue
It accumulates how long a posture is held into a 0–100 estimated index.
PER-REGION FATIGUE
Per-region fatigue
It splits the estimate across neck, shoulders, lower back, wrists — no single “correct” posture.
PERSONAL THRESHOLD
Personal threshold
Each region’s threshold is a rest-and-shift reference point. The optimal value differs per person.
INTO DESIGN
It flows into design
Guiding the moment to move is just the start. The understanding behind it becomes the standard for designing better chairs and services — toward a less tiring experience.
LENIF moves toward one thing — a healthier way to sit. Under that goal, we bring value to our customers through products and services that ease fatigue.
LENIF products are not medical devices, and this content is not intended to diagnose, treat, cure, or prevent any disease.
Company
The chair is
just the start
We design the whole environment for getting what you want done — starting with the chair, extending to desk and peripherals, as one system. Ergonomics expertise and deep-learning research settle each person’s different optimum, with data.
Founded by human-factors researchers. Seed round (CNT Tech).
Smart-chair crowdfunding success. Pre-A round (Hana Ventures).
Registered 4 core ergonomics patents.
Applied AI models for posture inference and musculoskeletal fatigue analysis.
Launched a new lineup and unveiled globally at CIFF Guangzhou.
Investors
Contact
For those who will
build what’s next
Investment, partnership, press — we welcome every conversation that opens a new possibility.