OnePlus showcased its new cooling concept model

OnePlus has unveiled its OnePlus 11 concept smartphone, featuring the company's new Active CryoFlux cooling solution.

From the outside, the phone looks like it has coloured strips running along its back. This is actually a fluid, being pumped around the phone with a ceramic piezoelectric micropump.

The purpose? Like cooling systems you might find on a PC, it can improve handset performance and longevity, as well as speeding up charging.