Samsung rolls out blood pressure monitoring for Galaxy Watch 4 and newer models in the US, requiring a traditional upper-arm blood pressure cuff and a new app (Vanessa Hand Orellana/CNET)

Vanessa Hand Orellana / CNET : Samsung rolls out blood pressure monitoring for Galaxy Watch 4 and newer models in the US, requiring a traditional upper-arm blood pressure cuff and a new app —  The globally available feature is finally rolling out in the US, but you'll need to buy extra hardware to use it.

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