Chameleon cars, urine scanners and other standouts from CES 2023

From colour-changing cars, dual-screen laptops and satellite emergency texts to AI-ovens and a urine-scanning smart toilet upgrade, the annual CES tech show in Las Vegas had more concepts of the future on show than ever before.

The biggest consumer gadget show of the year was still quieter than pre-pandemic levels, with the global economic slowdown biting big tech along with everything else.

However, there were still thousands of products on display. Here are some of the highlights.

Sony and Honda showed off a prototype electric car from their joint venture. The Afeela is covered inside and out with 45 sensors and has a full-width media screen inside, presumably for playing PlayStation games. A production version is expected by the end of 2025.

The laptop is expected be available later this year and joins rival devices from Acer and Sony in trying to make glass-free 3D computer screens a reality.

The latest Yoga Book from Lenovo replaces the keyboard deck of a traditional laptop with a second screen. The full-sized Windows 11 notebook has two 13.3in OLED displays hinged in the middle so that it can be used on a desk like a traditional laptop, propped up like a tent, read like a book or folded to be like a tablet.

A detachable keyboard and folding stand turn the Yoga Book 9i into a dual-screen workstation at a desk, too. The machine will cost $2,099 (£1,771.66) in the US and is expected to launch in June.

It can spot 80 different ingredients and dishes and includes air sous vide, air-frying and steam-cooking modes alongside traditional oven functions. You can even use the camera to take photos of or livestream your culinary creations as they cook.

It tracks 100 biomarkers for monitoring menstrual cycles and hormone levels or hydration and nutrition using customisable cartridges, sending all the data to the Health Mate app. The device, due to launch by mid-2023, will cost £500, with cartridges lasting three months costing £30.

Apple added the ability to use satellites to send SOS messages to the iPhone 14 late last year. Now the chip manufacturers Qualcomm and Mediatek are adding a similar ability to their top processors that could end up in high-priced Android phones from the second half of the year.