Cardiac Science (now under Stryker management) maintains two Powerheart lay-user models — the legacy G3 and the modern G5. The G3’s history includes major FDA Class I/II recall actions between 2009 and 2012 that reshaped the brand. The G5 generation operates under updated quality systems and adds Intellisense CPR feedback. For buyers with existing Cardiac Science programs, G5 is the standard replacement. For new buyers, the broader market (Philips, ZOLL, HeartSine) is usually a better entry point.
Head-to-head spec comparison
| Spec | Powerheart G3 | Powerheart G5 |
|---|---|---|
| Status | Legacy/replacement market only | Current generation |
| Price (refurbished only) | $1,195–$1,495 | $1,795–$2,095 |
| CPR feedback | Basic | Intellisense CPR feedback |
| Auto-energy adjustment | No | Yes (impedance-based) |
| Recall history | Major Class I/II 2009–2012 (resolved) | Clean under current systems |
| Warranty | End-of-life | 7 years |
Verdict
Best for new buyers
Cardiac Science Powerheart G5
The G5 should be the default Cardiac Science pick for any new buyer. Intellisense CPR feedback, automatic energy adjustment, and updated quality systems address the G3-era concerns. For broader brand comparison, see our Brand Reliability Rankings.
Frequently Asked Questions
Should I buy a Powerheart G3?
New buyers should choose G5. G3 is end-of-life and only available refurbished.
What happened with the Cardiac Science recall?
The G3 had Class I/II FDA recalls between 2009 and 2012, addressing component issues. All resolved per FDA closure letters. The current G5 operates under updated quality systems.
What is Intellisense CPR feedback?
The G5’s CPR-feedback firmware measures compression depth and rate during chest compressions.
Who makes Cardiac Science now?
Stryker acquired the brand and integrated it into the broader medical device portfolio.
Should I replace my old G3 with another G3 or upgrade to a G5?
Upgrade to G5 — newer firmware, current support, and clean recall history.
Get hands-on AED training in under 3 hours.
Sources & References
- FDA — Medical Device Recall Database
- Manufacturer specs: Stryker Cardiac Science Powerheart G3, G5
Disclaimer: G3 status reflects end-of-life market positioning.
