Weird and wonderful gadgets on show at giant tech fair

The Consumer Electronics Show in Las Vegas is a showcase for the biggest tech innovations from the biggest brands – but it's also a showcase for the cool and quirky.

A Current Affair had a look at some of the most novel gadgets on display that will be on show to the 180,000-plus attendees this year.

The onTracks personal navigation system is worn on the wrists, and is suited to cyclists or hikers, as it will give left- or right-turn alerts through the respective wrist.

This ensures people can keep their eyes on the road rather than risk looking at a screen.

Helicopter company Bell has shown off its giant drone, which could help people traverse the cities of the future in the next five years.

There was also a robotic companion, the Love OX, which tech expert Trevor Long said "will get to know you and love you and care for you" - despite not speaking English.

But at $6000 a pop, there's plenty that's more affordable.

Also on show was a dishwasher that does not require plumbing, but can instead simply be plugged in, and can do the whole cycle in 15 minutes.

A Current Affair also examined a wearable airbag for cyclists, and a Fitbit-style belt that tracked a person's waist size, steps, eating habit, sitting time, walking pattern and fall risk.

A self-stocking beer fridge that ordered its own refills also drew some eyes.

There was even a bread vending machine, which internally cooks and deposits fresh, warm loaves.

And for people with slumber troubles, a headset was on display which helped train people to sleep better.

"So you wear this three times a week for four months and you undertake activities using an app, and it trains your brain to sleep better and after four months you should sleep an extra 50 minutes a night," Mr Long said.