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24/7 Blood Pressure Monitor

Give the Gift of Health & Peace of Mind

A wearable, clinically validated blood pressure monitor that shows how much you care — day and night.

£199.98
Shop Now
Sleep tracking Trusted by doctors Free shipping Activity tracking 2-year warranty Class IIa CE-marked medical device

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Why gift Hilo?

High tech reassurance

  • 24/7 Tracking - No Cuff Needed
  • Medically Accurate Readings
  • Seamless Shareable Insights
  • See how your loved ones are doing, anytime.
Gift peace of mind to a loved one
High tech *reassurance*
HOW IT WORKS

Effortlessly stay in control with reliable blood pressure tracking

Hilo is a clinically validated, CE-marked Class IIa medical device for monitoring blood pressure in adults for everyday personal use. It includes three core components that work together.

Hilo Band

Hilo Band

Medical-grade wearable designed for continual blood pressure monitoring throughout the day and night.

Hilo App

Hilo App

View your blood pressure trends, personalised insights and doctor-ready reports all in one place.

Hilo Cuff

Hilo Cuff

Upper-arm cuff for initial and periodic calibration as part of Hilo's clinically validated monitoring system.

Frequently asked questions

What happens if I cancel my subscription?

Your Hilo subscription is required to use your Hilo Band and access your blood pressure data.

If you cancel:

  • You'll have 30 days of limited access (last 24 hours of data only)
  • After 30 days, the band will no longer function
  • You can reactivate anytime by renewing your subscription

Your Hilo Band is yours to keep, and all your historical data remains securely stored. Simply renew to regain full access.

What's included in my subscription?

Hilo subscription includes everything you need:

  • Hilo Band (yours to keep) + calibration cuff & charger
  • 24/7 automatic BP monitoring with ~25 readings per day
  • Complete measurement history and trends
  • Personalised insights and recommendations
  • Easy sharing with doctors and loved ones
  • Continuous software updates and new features

One membership, complete BP management.

Can I buy the device without subscription?

No. Hilo subscription is required to use the Hilo Band. The technology depends on cloud-based algorithms and ongoing software updates that are integral to delivering medical-grade accuracy.

Your subscription includes the device, the app, continuous monitoring, and all features — making blood pressure management simple and affordable.

How does it work?

Hilo is a subscription service that provides 24/7, cuffless blood pressure monitoring using a clinically validated, CE-marked Class IIa medical device.

1. Hilo Band

The Hilo Band uses optical sensors (PPG) to detect signals from your wrist. It calculates blood pressure using Pulse Wave Analysis (PWA) after calibration with the Hilo Cuff every 30 days. The band automatically measures your blood pressure around 25 times per day without any interaction.

2. Hilo App

The Hilo App syncs with your Hilo Band and displays how your blood pressure changes throughout the day and night, highlighting trends related to activity, meals, stress, sleep, and medication. You can share reports directly with your doctor or family.

How accurate is it?

The Hilo Band is a CE Marked Class IIa medical device that has undergone extensive clinical validation. Aktiia's technology is based on 20 years of research and over 100K users.

Two clinical trials have demonstrated accuracy comparable to a traditional upper-arm cuff, validated according to the ISO-81060-2 international standard.

What are the contraindications?

The Hilo Band is NOT INTENDED to be used on patients with sustained cardiac arrhythmias, conditions that reduce peripheral perfusion, pregnant women, damaged skin, or patients below 21 or above 85 years old.

Please refer to the Hilo User Manual for full contraindication details.

Why I Chose Hilo

Real people, changing their lives

5 stars
Hilo/Aktiia BP/HR monitor is truly amazing.
Firstly; The Hilo device is extremely comfortable to wear and is amazing at providing a reassuring constant 24/7 monitoring on my BP&HR. It is extremely interesting monitoring my stats during rest versus activity. All statistical results can be printed or sent via email to my Doctor if required. Providing me with comfort to know that my stats are well within range.
5 stars
Great device for peace of mind
I've only had the sensor working for a few days and I've been able to see a rare high blood pressure event. Great! But there are times when there are no measurements and I'd like to trigger one with my phone. Hopefully they can add that feature.
5 stars
I was looking specifically for a watch…
I was looking specifically for a watch which would keep a constant check on my blood pressure and pulse, with clinically backed technology. I could find lots of watches that measure pulse but not trustable BP. I've had my HiLo for less than a week but the readings and displays are so informative.
5 stars
5 stars
I'm really impressed with this blood pressure monitor and the company's overall service. The device is reliable, straightforward to operate, and provides consistent readings that help me stay on top of my health. Customer support was quick and helpful when I had a question.
tech specs

The Hilo Band

Hilo Band
Up to 15 days battery life
Secure & Private
Water Resistant

Power & Battery

  • Up to 15 days battery life (typical use)
  • Full charge in 90 minutes

Comfort & Fit

  • Weight: 16 g (ultra-light)
  • Wrist fit: 140–210 mm
  • Arm fit (cuff): Adjustable, 22–42 cm
  • Pod size: 8.5 mm × 16 mm × 34 mm
  • Materials: Hypoallergenic silicone band, stainless steel hardware

Connectivity & Compatibility

  • Bluetooth Low Energy (Bluetooth 5 or newer required)
  • Compatible with iOS 16+ & Android 8+

Accuracy & Standards

  • ISO 81060-2 certified
  • Blood pressure accuracy: ±5 mmHg (systolic & diastolic)

Durability & Security

  • IP68 water & dust resistant
  • Secure & private data handling

Hilo medical-grade wearable band – Designed for continuous blood pressure monitoring throughout the day and night.

Upper-arm calibration cuff – Required for initial and periodic calibration.

Charging pod and cable – Secure USB charging system. Full charge in approximately 90 minutes.

Hilo membership (12 months) – Full access to continuous monitoring, trend analysis and clinical insights.

Doctor-ready clinical reports – Downloadable summaries designed to support conversations with healthcare professionals.

Software updates – Ongoing performance improvements and feature enhancements included.

Customer support – Dedicated support for setup and ongoing use.