Cuffless Blood Pressure Tracking

Startup Vital Signals launched the Signal Ring, a wearable promising continuous blood pressure monitoring without an inflatable cuff. The device costs $399 with no subscription fees.

• Uses proprietary high-speed sensors and algorithms.
• Tested in a 451-person clinical study.
• Shipments expected to begin in October.

Medical experts remain cautious, citing potential signal interference from motion, skin tone, and circulation. The device is not yet FDA-cleared.