The HEART Two has all the features of the HEART One, with the addition of a large colour display and multi-language support, providing enhanced guidance for the rescuer during a cardiac emergency.

Yes, St John Ambulance offers expert-led defibrillator training for workplaces and communities.

For example, you might opt for a 3-hour session where our trainers teach CPR and AED use, giving everyone hands-on practice with a trainer unit. For others, we can provide demo sessions or instructional videos.

All HEART models come with an 8-year warranty period, in line with the majority of brands on the market. Note that the service life of the devices themselves is 10 years when kept in the recommended conditions.

Not at all. The HEART AEDs take care of themselves with daily self-tests.

Maintenance mainly involves periodically replacing the pads and battery (every 5 years or after use). There is no calibration or servicing required, and the devices will alert you audibly if something needs attention.

St John Ambulance can also help remind you about expirations if you register the product.

All three of our HEART products, the HEART One, HEART Two and HEART Pocket, are semi-automatic defibrillators.

Unlike our other defibrillator models, the HEART Pocket and Pocket Pro are designed to be carried at all times. Weighing only 700g, the HEART Pocket is lightweight, pocket-sized and ready to use in emergencies. The HEART Pocket Pro weighs even less and can continuously analyse the heart rhythm using real-life VF/VT detection.

Both are ideal for first responders on the move.

The HEART Pocket and Pocket Pro are designed to be robust, with protection against dust and water (IP65 rated), and have a 1.5m drop tolerance for reliability in real-world situations.

Although it's not legally required to have a defibrillator in your workplace, it is encouraged. Providing an automated external defibrillator helps improve emergency response and safety.

Yes. AEDs are designed to be used by anyone. Our HEART One and Two defibrillators provide clear voice and visual instructions, while the HEART Pocket provides just the Smart Voice Guidance. Our defibrillators will only deliver a shock if needed, meaning anyone can use one when it matters most.

Having a defibrillator (AED) on-site can help save lives during cardiac arrest. St John Ambulance HEART defibrillators are some of the best devices out there, and are designed to be easy to use in workplaces, schools, public and community spaces.

Every aspect, feature and function is designed with the layperson first aider saving lives in mind. And all this is backed by our 8-year warranty and minimal ongoing costs, so you can buy with complete confidence.