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Philips HeartStart OnSite vs. FRx: Which AED Is Right for You? - AED Professionals

Philips HeartStart OnSite vs. FRx: Which AED Is Right for You?

AED Buying Guide | Product Comparison

Two trusted AEDs. Different environments. Which one fits your needs?

Choosing an automated external defibrillator (AED) is an important decision, but it doesn't have to be complicated.

The Philips HeartStart OnSite and HeartStart FRx are both designed to help people respond to sudden cardiac arrest. Both provide step-by-step voice instructions, guide users through CPR, and automatically analyze a person's heart rhythm to determine whether a shock is needed.

So, what's the difference?

It comes down to where you'll use your AED, who you're preparing to protect, and the environment in which the device will be kept.
Everyday Environments
Philips HeartStart OnSite AED automated external defibrillator for offices, businesses and indoor facilities

HeartStart OnSite

A straightforward AED designed for businesses, workplaces, and everyday indoor spaces.

Explore OnSite
Demanding Environments
Philips HeartStart FRx AED rugged automated external defibrillator for sports facilities, industrial workplaces and first responders

HeartStart FRx

A rugged AED built for active workplaces, athletic facilities, and tougher conditions.

Explore FRx
Meet the Philips HeartStart OnSite

HeartStart OnSite AED: Simple, Reliable, and Designed for Everyday Spaces

The Philips HeartStart OnSite is an excellent choice for businesses and organizations looking for an easy-to-use AED.

Designed with everyday responders in mind, the OnSite provides clear voice instructions that walk users through the rescue process. Its SMART Pads technology allows the AED to adjust instructions to the responder's pace, repeating or clarifying steps when needed.

For organizations purchasing their first automated external defibrillator, the OnSite offers an approachable way to prepare for sudden cardiac arrest.

Where Does the HeartStart OnSite Work Best?

  • Offices and corporate buildings
  • Churches and places of worship
  • Hotels and hospitality businesses
  • Retail stores and restaurants
  • Community centers and other indoor facilities

The OnSite is especially well-suited for locations where an AED will typically remain stored in a designated, accessible area.

One thing to know: The OnSite uses separate adult and Infant/Child SMART Pads cartridges. Pediatric pads must be purchased separately for use with infants and young children.
Meet the Philips HeartStart FRx

HeartStart FRx AED: Built for More Demanding Environments

The Philips HeartStart FRx offers the same approachable, voice-guided rescue experience with added durability.

Designed to withstand rough handling, dust, and exposure to moisture, the FRx is a strong choice for environments where equipment may experience more wear and tear.

Its rugged construction makes it particularly appealing for organizations with active or demanding working conditions.

Where Does the HeartStart FRx Work Best?

  • Athletic facilities and sports complexes
  • Construction sites
  • Manufacturing and industrial facilities
  • Outdoor recreation facilities
  • First responders and mobile response teams

Another important distinction is the FRx's pediatric capability.

Rather than switching to a separate set of pediatric pads, the FRx uses SMART Pads II for both adult and pediatric patients. When the optional Infant/Child Key is inserted, the AED adjusts its instructions and shock energy for a younger patient.

One thing to know: The Infant/Child Key is sold separately, so organizations preparing for pediatric emergencies should make sure they have one available.
Compare the Features

Philips HeartStart OnSite vs. FRx: Side-by-Side Comparison

Both Philips AED models provide voice-guided rescue assistance, but several features can help determine which device is the better fit for your location.

Feature HeartStart OnSite HeartStart FRx
Best Suited For Everyday indoor spaces More demanding environments
Voice-Guided Instructions Yes Yes
CPR Guidance Yes Yes
Water and Dust Protection IP21 IP55
Pediatric Capability Separate Infant/Child SMART Pads cartridge SMART Pads II with Infant/Child Key
Typical Battery Standby Life 4 years 4 years
Manufacturer Warranty 8 years 8 years
Automatic Self-Tests Yes Yes

Specifications are based on published Philips and AED Professionals product information. Battery life depends on specified storage and operating conditions.

Finding the Right Fit

Which Philips AED Should You Choose?

Here's a simple way to narrow it down.

Everyday Preparedness

Choose the HeartStart OnSite If...

You're purchasing an AED for an office, church, retail space, or another typical indoor environment. You want straightforward operation, clear instructions, and an accessible device that can remain in a designated location.

Rugged Preparedness

Choose the HeartStart FRx If...

Your AED may be used in athletic, industrial, or more physically demanding environments. You want the added durability of a rugged design and the convenience of using the same electrode pads for adult and pediatric rescues when equipped with the Infant/Child Key.

What If Both AED Models Fit Your Needs?

You really can't make this decision based on appearance alone, and the FRx isn't automatically the better choice simply because it's designed for tougher conditions.

Both AEDs offer important lifesaving features. The right decision depends on how and where your organization plans to use the device.

For example, an office purchasing an AED for a reception area may find everything it needs in the OnSite. A school purchasing an AED for athletic events may prefer the FRx's rugged design.

When comparing AEDs for schools, businesses, gyms, or public facilities, consider where the equipment will be stored, who may need to use it, and which accessories should be kept nearby.

AED Ownership & Maintenance

Don't Forget About AED Maintenance

Whichever model you choose, maintaining your AED is just as important as purchasing it.

Both Philips HeartStart models require routine checks and replacement supplies to remain ready for an emergency.

  • Electrode pads: Typically have a two-year shelf life. Always follow the expiration date printed on your pads.
  • Batteries: Have a typical four-year installed standby life under specified conditions.
  • Routine inspections: Help confirm the AED is accessible, its status indicator shows it's ready, and supplies are within their expiration dates.

An AED is an investment in preparedness, and regular maintenance helps protect that investment.

Whether you're managing one AED or multiple devices across several locations, keeping track of replacement pads, batteries, and inspection schedules should be part of your AED program.

Common Questions

Frequently Asked Questions About Philips HeartStart AEDs

What is the main difference between the HeartStart OnSite and FRx?

The main difference is durability and the way each model supports pediatric use. The OnSite is designed for typical everyday settings and uses a separate pediatric pads cartridge. The FRx provides additional protection against dust and moisture and uses an optional Infant/Child Key with its SMART Pads II.

Which AED is better for schools and sports facilities?

Both models can be suitable for schools. The OnSite may be a good fit for classrooms, offices, or other indoor areas, while the FRx may be preferable for athletic facilities, sports programs, and areas where equipment faces more demanding conditions.

Can the Philips HeartStart OnSite and FRx be used on children?

Yes. Both models support pediatric use with the appropriate accessories. The OnSite requires an Infant/Child SMART Pads cartridge, while the FRx uses SMART Pads II with the optional Infant/Child Key. These accessories are sold separately.

Is the Philips HeartStart FRx waterproof?

The FRx has an IP55 rating, providing greater protection against dust and water exposure than the OnSite's IP21 rating. However, IP55 does not mean the AED can be submerged in water. Always follow the manufacturer's storage and operating guidelines.

Which Philips HeartStart AED is easier for a first-time user?

Both the OnSite and FRx are designed to guide responders with clear voice instructions and CPR assistance. The best choice depends less on experience and more on your location's environment and equipment needs.

How long do Philips HeartStart AED batteries and pads last?

Both models have a typical installed battery standby life of four years under specified conditions. Their electrode pads typically have a two-year shelf life. Always follow the printed expiration dates and the manufacturer's maintenance instructions.

AED Professionals

Ready to Find the Right AED?

Whether you're preparing a small business, a busy athletic facility, or a large organization, choosing the right AED starts with understanding your needs.

At AED Professionals, we're here to help you compare your options, find the right accessories, and build an AED program that works for your environment.

Looking for special savings? Explore our Philips HeartStart Promotion for current offers on both models.

Still not sure which is right for you? Call 888-541-2337 and our team will be happy to help you find the right fit.

AED Professionals: A General Medical Devices, Inc. company

348 W. Colfax Street, Palatine, IL 60067

info@aedprofessionals.com 888-541-2337

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