Industrial - Bachelor

‘SYNC’ – Wearable Technology for Women

'SYNC' is a wearable device that supports women’s health by tracking biometrics such as heart rate and temperature to visualise menstrual cycle phases through colour-coded LED lights. It is designed to enhance self-awareness and connection, and encourage a more intuitive understanding of the body’s natural rhythm through holistic, human-centred design.

‘SYNC’: Support Your Natural Cycle

Empowering women to better understand and manage their menstrual health

A wearable device centred on the needs of women, that accurately tracks your menstrual cycle.

Close up of collar with outline of rectangular shaped heart rate sensor.

Target User: People who menstruate aged 18-25

Regardless of advancement in women’s health, their wellbeing cannot be improved unless we address the limitations that women experience across the world. My report’s findings reinforced the need for inclusive, accessible designs that challenge stereotypes across social and cultural contexts.

video: introducing ‘SYNC’

Research

Research report

Name
Research Report for ‘SYNC’ wearable
File Type
application
File Size
4 MB
Download File

research analysis

Research conducted over seven weeks: three user observations, one expert interview and one survey. The following themes were formed during analysis of research data.

theme one: wellbeing

A connection between body and mind, with unique experiences in health due to differences in physiology.

Theme two: decision-making

Affected by focus, concentration and energy levels, context is critical in effective decision-making.

Theme three: Health Trends

A shift towards person-centred and evidence-based practice was shown, through new research and emerging technologies.

“You wouldn’t question years ago when I started… There’s been a huge change in health over that period of time.”

(Expert 01, interview)

75% of people who menstruate experience changes in their emotions and body during the premenstrual week

(Doornweerd & Gerritsen, 2025)

So… what does this mean for design?

Improving quality of life

Utilising emerging technologies can be seen as beneficial in improving quality of life. Integrating biometric sensors into health products is an identified opportunity area.

A holistic approach to health

The research revealed that emotional state significantly affects decision-making. Creating a product that provides context-aware insights that meet user needs now and, in the future, ensures a long product life, enhancing sustainability.

Health promotion as a trend

Users seek holistic tools that consider their situation and provide insights into emotional and physical wellbeing, promoting empowerment. Creating designs that reflect the diversity of individual experiences, including different life stages and identity, will benefit users through a more personalised experience.

The need for a context-aware design that is woman-centred.

The themes revealed from analysis were translated into the need for personalised designs that consider the user’s context, as well as supporting emotional regulation, intuitive interactions and a holistic approach to health tracking. Wearable devices and menstrual cycle tracking apps must reflect user’s lived experiences, promote health through educational tools and personalised insights, as well as challenge the systemic inequality that disadvantages women. Through design, we can enhance inclusivity and empower users to better understand and manage menstrual health.

Initial concept development of wearable devices

Digital sketches of wearable devices showing multiple different designs including a headband, armband, sticker or handheld tube-shaped device.

how ‘sync’ works

visualisation of menstrual phases through LED lights

‘SYNC’ shows you what phase of your menstrual cycle you are currently in through LEDs. The menstrual cycle involves three phases, the follicular phase, ovulation and the luteal phase, each characterised by changes in body temperature (and hormonal changes).

Body temperature: most accurate at rest

Waiting until resting heart rate, when taking your body temperature allows a more accurate reading. This is why ‘SYNC’ was designed to calm the user down using a slow glowing LED feature to guide the user through deep breathing. This allows the heart rate to decrease to a resting rate, where the device can then take an accurate body temperature reading.

Manufacturing

A screen-less solution using simple sensor modules

Using two types of biometric sensors, temperature and heart rate (PPG sensor), and a sewable LilyPad Arduino microcontroller attached via stitches and velcro, to modular 3D printed chainmail.

modular 3D printed chainmail fabric

Using the emerging technology of FDM and SLS 3D printing, to create flexible, lightweight and durable fabric made of a chainmail structure. The materials tested included: PLA, PET-G and Nylon 12. The manufacturing processes tested were: FDM and SLS 3D printing. This allows for on-demand printing with no waste, as well as the opportunity to manufacture locally within Australia.

Exploded view

Testing designs of 3d printed chainmail

I moved forward with the chainmail in the first image as it was one of the thinnest (only 3mm thick) and lightest designs. The structure is detachable allowing for modular design, and easy replaceability, enhancing sustainability.

Images of 3D printed chainmail fabric showing different patterns and designs.

Prototyping attachment of 3d printed chainmail fabric

iterating form – position of biometric sensors

Multiple iterations were prototyped of different forms and layers. I used cotton wadding, EVA foam off-cuts and canvas fabric to develop, refining each prototype along the way. The design had to sit near the neck and shoulder area as this was critical in positioning of the biometric sensors.

Final Prototype

Quilted fabric wearable device with large rectangular panels overlapping at the front. The fabric is soft plum coloured velvet. The garment is positioned on a mannequin in front of a curtain.

Final Model of ‘SYNC’

The overlapping front panels provide comfort to the wearer through the large, bulky shape and position on the chest and shoulders. The velcro attachment allows ease of use and adjustability, allowing a ‘one-size-fits-all’ approach.
Close up of front of quilted fabric wearable device with large rectangular panels overlapping at the front. The fabric is soft plum coloured velvet. The garment is positioned on a mannequin in front of a curtain.

Embedded Sensors Within the Fabric Layers

Biometric sensors are embedded within the external and internal layers, attached to flexible 3D printed chainmail structures. Two temperature sensors are positioned on the back, and one heart rate (PPG) sensor near the side of the neck. Soft, velvet fabric was used as this enhanced comfort as well as providing a luxurious feel and aesthetic. Two layers of velvet as the external layers, with two layers of cotton wadding, and the electronics on 3D printed chainmail, internally.
Back view of quilted fabric wearable device with large rectangular panels overlapping at the front. The fabric is soft plum coloured velvet. The garment is positioned on a mannequin in front of a curtain.

Electronics Housed in Back

All electronic parts are attached to 3D printed chainmail pieces via sewing, and these pieces are then attached directly to the fabric cover using velcro. The temperature sensors, microcontroller and lithium coin battery is all positioned in the back piece, sandwiched between the two layers of fabric.

Back cover opens up easily to access internal electronic pieces due to being attached with velcro. This allows for easy removal of any electronic parts so that the cover pieces can be washed in the washing machine.

Gallery of images

Millie Lush

Millie Lush is an emerging industrial designer whose practice focuses on designing with empathy and intention. She explores how creativity and wearable technology can enhance women’s health and wellbeing, integrating craft, storytelling, and user-centred thinking to foster self-awareness and meaningful connection between people and their products.