Track your blood pressure without a cuff using Signal Ring, a wearable that reads your pulse wave continuously and skips calibration entirely from the start.

• No cuff, ever: The ring reads blood flow at your finger, so you skip the arm squeeze and the drift that comes with periodic calibration.
• All-day tracking: It logs mean arterial pressure, pulse rate, and heart rate variability around the clock, showing patterns a single reading can’t.
• Zen Mode guidance: Posture cues and slow breathing prompts keep you calm during a reading, which makes the number more reliable.
• Context with every number: Each reading shows an accuracy score and what you were doing, so you know if a spike came from stress or exercise.

Preorder Signal Ring now for $399 and get a cuff-free way to watch your blood pressure every day.