Smart toilet with built-in urine test and ring which monitors periods among gadgets unveiled at CES

Vivoo’s smart toilet, includes a built-in urine test and test reader, which can then return results to users via a smartphone app in 90 seconds

The health company Vivoo has unveiled a smart toilet which can test urine (Vivoo/PA)

A smart toilet capable of carrying out urine tests to detect health issues within 90 seconds and a ring which can track menstrual cycles are among the gadgets being unveiled at the CES technology fair in Las Vegas.

The trade show opens on Thursday, but many brands including Samsung, LG, Panasonic and others, have begun unveiling new TVs, smart appliances and gaming monitors and other devices ahead of the show.