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Vital Signals says its $399 Signal Ring is the first to bring blood pressure tracking to the finger, claiming cuff-grade accuracy on a five-day battery, a metric the Samsung Galaxy Ring, Oura Ring 4, and Whoop 5.0 all leave on the table. Wait for independent testing before you trust it as a medical device, but if the numbers hold, this is the first ring that competes with your home BP cuff instead of your Fitbit.
Marty’s Take:
Here’s what nobody’s saying: Vital Signals is a startup nobody’s heard of making a medical-grade claim that Samsung and Apple, with their lawyers and FDA budgets, still refuse to touch. “Cuff-level accuracy” from an unregulated $399 ring is a red flag until a cardiologist verifies it independently. Don’t ditch your Apple Watch Ultra 3 yet; keep it on your tracker shortlist instead.
Shop mentioned gear: Samsung Galaxy Ring | Oura Ring 4 | Whoop 5.0 | Fitbit
Source: Gizmodo
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