The well-known wearable brand Amazfit hopes to release fitness trackers and smartwatches with ECG and blood pressure measurement in the US. The company is engaging with the FDA to bring these wearables to market.
https://www.notebookcheck.net/Amazfit-aims-to-launch-smartwatches-with-ECG-blood-pressure-measurement-and-more-in-the-US.528374.0.html