A semi-passive wearable device worn by new mothers that helps health clinics and social health workers to keep track of the health history of newborns and children.

What is it?

A semi-passive wearable device worn by new mothers. The device helps health clinics and ASHAS (Social health workers) to keep track of the health history of newborns and children upto the critical age of five. It also notifies the mother when it is time for a critical visit to the clinic. This is especially helpful in keeping track of vaccinations given, dosages etc. as the mother or ASHA may not accurately remember these details.

The device will be in the form of a locket/pendant that is given to mothers at the time of childbirth, as a talisman(taveez) pendant for protection and good health of their child. By assigning this perceived value to the device we hope to connect with the mothers at an emotional level so that it taps into their sense of duty to protect and care for the newborn.

The device allows the clinics to access accurate information regarding the child’s medical history, including vaccination history, dosages, etc which is stored in the pendant. It also alerts parents when it is time for a critical visit to the clinic. The pendant changes color whenever a critical visit to the clinic is due. The pendant is built using rugged materials in a waterproof, shockproof and dustproof manner, so as to ensure longevity.

How is it used?

Worn by the mother as a pendant.

What technologies does it incorporate?

Low power color changing mechanism, which can be activated by a micro-controller.
Low power micro-controller to activate color changing mechanism.

How does it work?

The pendant has an embedded NFC chip which contains the medical history of the child. The staff at the medical clinic can be equipped with devices to read/write data on to the locket. The data can also be linked to Aadhar(UID) and biometrics of the child or parents, and stored in the cloud, for enabling easy retrieval of data if the original pendant is lost. NFC is cheap and does not require any power. The power is required only at the time of reading via the NFC reader in the clinic.

The notification occurs via a color change of the pendant, which alerts the parents to contact the ASHA, who informs them of the importance of that particular visit and ensures that the child is taken to the clinic. At each visit the clinic staff enters data into the software on their devices which programs the micro-controller in the pendant to cause color change at a particular period.

Who uses it?

The mother.

Why does it help?

By ensuring that the clinics have accurate medical history of the children and do not have to depend on parents’ memory which may be very inaccurate or incomplete, especially in the case of remote villages and illiterate parents.

It also ensures that parents remember to take the child for periodic critical visits to the clinic, especially for vaccinations.


Team's Location


Team's Occupation


Team Members

Varun Shyam, Shruti Suman

Focus Area(s)

Alert/Response, Data Collection/Data Insight

UNICEF Pillar(s)

Health, Child Protection

These pages have been pulled directly from applications submitted to the Wearables for Good Challenge in 2015. They represent the work of the individual teams and have subsequently not been edited.


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