Smartwatches have beefed up their heart health features in recent years Smartwatches have beefed up their heart health features in recent years is a senior reporter and author of the Optimizer ...

Earlier this month Zepp has announced its latest smartwatch – the Zepp Z – and now owners in the brand’s homeland are about to be treated to an ECG update. The ECG feature does come at a cost though.

[James] has been building a heart rate monitor using a very cool TI chip. He needed a way to test his device, and commercial ECG simulators, like all biotech devices, are absurdly expensive. [James] ...