Covid-19 contact tracing wearables are being issued to Singapore's "most vulnerable seniors," who are not digitally connected and at higher risk of catching the coronavirus.
The Bluetooth-enabled devices, called TraceTogether Tokens, each have a unique QR code and do not depend on someone owning a smartphone, as they lack Internet or cellular connectivity and GPS.
The tokens hold encrypted data of close contacts for up to 25 days. TraceTogether Tokens exchange Bluetooth signals with other TraceTogether Tokens, and mobile phones running the TraceTogether app, that are within 2 meters of each other for more than 30 minutes.
The Health Ministry's contact tracing team will extract data from devices handed over to authorized health officials and inform users if they are identified as a close contact of a person with Covid-19.
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