Contact-tracing app

Why Singapore turned to wearable contact-tracing tech

All users have to do is carry one, and the battery lasts up to nine months without needing a recharge - something one expert said had "stunned" him.

The government agency which developed the devices acknowledges that the Tokens - and technology in general - aren't "a silver bullet", but should augment human contact-tracers' efforts.

The first to receive the devices are thousands of vulnerable elderly people who don't own smartphones.

To do so, they had to provide their national ID and phone numbers - TraceTogether app users recently had to start doing likewise.