The Power of a Gesture: How Wearable Tech Can Reimagine Communication and Care
Wearable devices could go a long way in transforming how people with speech and motor disabilities communicate and engage with their surroundings. In 2021, IIT-Madras’s Centre for Rehabilitation Engineering and Assistive Technology (CREATE) showed how with the development of iGest and Vibe. Designed to be intuitive, lightweight, and adaptable, these innovations have wide-ranging applications in healthcare, education, and rehabilitation—reshaping the future of assistive technology in India.
Updated on: 03 December 2021
Sector
Solution
Technology
State of Origin
Impact Metrics
Independent communication
for people with speech and motor disabilities.
Enhanced and affordable
inclusive education and healthcare for low-income group.
For millions of Indians with conditions like cerebral palsy, muscular dystrophy, or neurodegenerative diseases, expressing basic needs can become an overwhelming task. Recognising this gap, a team at IIT Madras developed two wearable solutions – iGest and Vibe – that aim to restore agency to users through gesture-based and sensory-assisted communication. What sets these devices apart is not just their engineering, but their empathy: they are shaped by collaboration with disability rights organisations and fine-tuned through real-world use.
Designing for dignity: iGest and Vibe
iGest is a wrist-worn device that uses sensors to identify muscle memory-based hand gestures, allowing users to trigger customised messages or commands. It does not rely on speech, facial recognition, or touchscreens, making it accessible even for users with limited motor control or non-verbal communication styles. Messages can be pre-set based on individual needs, such as indicating hunger, discomfort, or a call for assistance. The result is a low-dependency, high-autonomy solution that restores a sense of control and privacy.
Vibe, its companion innovation, enables caregivers or assistants to communicate with users through vibration-based cues. For example, a vibration on the left or right side could indicate a turn, or a long pulse might signal a change in activity. This feature is particularly useful for individuals with sensory integration challenges or limited environmental awareness, allowing smoother navigation and instruction.
Together, the two devices form a bidirectional system: iGest gives users a way to express themselves outwardly, while Vibe offers an accessible channel for receiving inputs from others.
Built in partnership with the disability community
These innovations were developed at the Centre for Innovation (CFI), IIT Madras, by a student team comprising Sandeep K, Yashaswi Kumar, and Sandeep Ramesh, under the mentorship of Professors Anil Prabhakar, M Manivannan, and Ravindra Gettu. Crucially, the team partnered with Vidya Sagar, a Chennai-based organisation working in the field of disability inclusion. User testing, therapist feedback, and iterative design were central to the development process—ensuring that the technology responded to real-life needs rather than hypothetical use cases.
Implications for healthcare, education, and daily life
By reducing dependence on speech and sight, devices like iGest and Vibe could expand the scope of participation for users in classrooms, clinics, and homes. In education, they support inclusive learning by enabling students to signal attention, ask for help, or participate in peer interaction. In healthcare, they provide a reliable way for patients to express discomfort or respond to treatment without verbal input. Most importantly, they shift the paradigm from reactive care to proactive communication, reducing frustration and increasing user dignity.
Because they are affordable, lightweight (iGest weighs just 35 grams), and do not rely on external infrastructure like the internet or smartphones, these devices are well suited for deployment in low-resource and rural settings.
Positioning wearable tech within India’s policy framework
iGest and Vibe offer practical pathways to support national goals around inclusive access and tech-driven public services. By enabling communication without reliance on speech, screens, or internet connectivity, they address core objectives of the Accessible India Campaign (Sugamya Bharat Abhiyan), which focuses on reducing barriers in everyday environments. Their applicability in classrooms—particularly for students with speech or motor impairments—reinforces the inclusive education aims outlined in the National Education Policy 2020 and operationalised through Samagra Shiksha Abhiyan. In clinical and rehabilitative contexts, the devices support Ayushman Bharat Digital Mission efforts to deliver patient-centric, technology-enabled care, especially in low-resource settings. Developed within a public R&D ecosystem, these solutions also reflect the principles of Start-up India, Make in India, and Viksit Bharat@2047, which prioritise indigenous innovation that meets social and infrastructural realities.
A future where inclusion is engineered in
The story of iGest and Vibe is not just about two devices—it’s about an approach to innovation that begins with empathy, listens actively, and builds iteratively. By translating gestures and vibrations into meaningful dialogue, these tools give users more than a voice—they give them agency. As India pushes toward a future that is more connected, inclusive, and self-reliant, technologies like these will be essential—not just for those they directly serve, but for the systems that must evolve to include them.
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