This Sony wearable can keep you cool (but you won't look it)

The Sony Reon Pocket isn't a brand-spanking new device - though this might be the first time you have heard of it. The first generation launched in 2019 as a crowdfunding project – not under the Sony name - but following its success (selling over 4,000 units in six days), it became part of the Sony Group in 2020 and is now launching its 5th generation.