Smartwatches keep adding "life-saving" tech like fall detection, SOS calling, AFib warnings, and the latest Loss of Pulse feature on Pixel Watches, all to make you feel safe. But there's a less flashy and more common concern that most watches treat as an afterthought: hydration tracking and sweat loss.
I've wanted better hydration tools on watches for a while, but last weekend's report of 35-year-old runner Bobby Graves dying of cardiac arrest after finishing a Disneyland half marathon last weekend — a day after self-diagnosed heat exhaustion in 100ºF heat — brought it to the forefront of my mind.
