New Delhi, Dec. 22 -- Smartwatches are getting smarter - at least, health-wise.

These devices, so far largely considered lifestyle accessories with basic fitness-tracking features mostly shunned by medical practitioners, are increasingly receiving medical certifications from the Centre-making them health devices that alert users against issues such as heart rate fluctuations, sleep disorders and blood pressure anomalies.

On 4 December, Apple launched hypertension tracking on its latest Apple Watch Series 11 smartwatch. While the feature does not give a direct blood pressure readout, it monitors a user's blood oxygen, stress levels and other heart-related parameters to notify them that they may have a potential hypertension issue.

The c...