Smartglasses that give users a personal video display and smart scales that can measure body composition and even nerve activity are among the first gadgets unveiled ahead of the CES tech show.

The industry trade show is regarded as one of the biggest dates in the technology calendar

The line-up includes a robot vacuum cleaner which uses artificial intelligence (AI) to identify cables and fragile objects when tidying.

Keynote speeches by executives from the likes of Google, Twitter and Amazon will be shown online during the event

CES, one of the world’s biggest technology conferences, will be a virtual event in January due to the coronavirus pandemic. The announcement is a reversal from May when organisers said it would go on as a smaller gathering in Las Vegas.

A pair of headphones worth almost €50,000 and a beer-brewing robot were among the new products displayed at the world’s biggest technology show.

A press event ahead of the Consumer Electronics Show (CES) offered an early glimpse into what could be the biggest trends of the four-day event, which starts today and is expected to attract around 170,000 people.