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Insights that matter

Frequently asked questions

• How accurate is the Hilo Band?

  The Hilo Band is a CE Marked, Class IIa medical device—meaning it meets regulatory standards for accuracy in measuring blood pressure in adults.

  The technology is backed by over 20 years of research, 100,000+ users, and six major clinical trials. It meets the ISO 81060-2 standard, which defines accuracy requirements for blood pressure monitors used in the general population.

  Hilo’s measurements have been shown to be comparable to traditional upper-arm cuffs, with no manual steps or user input required during measurement.

  To see clinical validation details, visit our How it works page.

• How does the Hilo Band measure my blood pressure?

  The Hilo Band uses photoplethysmography (PPG)—an optical sensor technology that collects data from your wrist. This data is sent securely through the Hilo App to Hilo’s cloud server, where advanced algorithms estimate your blood pressure using Pulse Wave Analysis (PWA), which looks beyond just the rate of your pulse, and examines the unique form of each heartbeat’s pressure through your blood vessels. 

  To ensure reliable results, the Hilo Band checks for movement and only takes measurements when you’re still. This helps improve accuracy.

  By wearing the Hilo Band day and night, you allow the system to take multiple readings across a 24-hour cycle. This gives you a broader view of your blood pressure patterns—both during the day and while you sleep.

  The technology used in Hilo is covered by patents owned by CSEM SA, Switzerland.

  For a more detailed breakdown, see our How it Works page.

• Can I use my Hilo Band without a Hilo Membership?

  Yes—you can use your Hilo Band without a Hilo Membership.

  You’ll still get 24/7 blood pressure and heart rate monitoring, with access to your most recent 7 days of data in the Hilo App, empowering you with the essential data to stay informed, and understand your blood pressure patterns.If you want deeper insights into your blood pressure—like full measurement history, personalised trends based on your unique profile, and seamless data sharing capabilities—you can upgrade to Hilo Membership anytime.

  For early Aktiia users:
  If you purchased the original Aktiia 24/7 Blood Pressure Monitor, your access remains unchanged. You continue to have free lifetime access to the features you originally had through the Aktiia App—no membership required. You will also receive all the latest software and firmware updates.

  You can choose to upgrade to Hilo Membership at any time, without having to buy a new Hilo Band. This will give you access to new features like Apple Health, Health Connect, and future enhancements.

  If you later upgrade to a new Hilo Band, your existing access will carry over—just make sure you continue using the same Hilo App account.