Updated · July 2026
Buy the ZOLL AED Plus when the person doing CPR will not be good at it. It measures compression depth in real time and tells the rescuer to push harder. Best for gyms, schools and workplaces with high staff turnover. Skip it if you want the lightest, simplest box: buy the Philips HeartStart OnSite.
Most AEDs tell you to do CPR. The AED Plus watches you do it and corrects you. That single difference is the entire argument for this device, and it is worth understanding before you compare it on price, because on price alone it loses to half the market.
Our verdict
ZOLL AED Plus
Buy it if untrained or rarely-trained people will be the ones responding. Real CPR Help measures the depth and rate of compressions and coaches in real time, which is the variable most likely to fail in a real rescue. That matters most where the responder pool turns over: gyms, schools, shift-based workplaces.
Do not buy it if you want the lightest or simplest unit, or the lowest sticker price. The Philips HeartStart OnSite is easier to hand to a stranger, and the HeartSine 350P costs less to own. Neither coaches compressions.
What Real CPR Help actually does
The CPR-D-padz electrode contains a sensor that sits under the rescuer’s hands. It measures how deep each compression goes and how fast they are coming, then the unit responds: a bar display shows depth, and a voice prompt says “push harder” when the compressions are too shallow.
This matters because compression depth is the thing bystanders get wrong. An AED that only says “begin CPR” has no idea whether the CPR is working. The AED Plus does. If your responders are trained annually and rarely practise, this is the feature you are buying.
The trade is size. The one-piece CPR-D-padz is a larger electrode than the split pads on most competitors, and the unit is bulkier than a HeartStart OnSite. You are carrying a bigger box to get a coach.
Specification
| Attribute | ZOLL AED Plus | What it means for you |
|---|---|---|
| FDA status | FDA-approved, PMA family P160015[2] | AEDs require Premarket Approval, not 510(k) clearance[1][3] |
| CPR feedback | Depth + rate, real time | The reason to choose this model over anything else here |
| Electrode | CPR-D-padz, one-piece adult | One part to place, fewer decisions under stress. Bigger to store |
| Pad life | ~5 years | Longest pad cycle in this comparison. Fewer replacement events |
| Battery | Consumer 123A lithium, ~5 yr | Off-the-shelf cells, not a proprietary pack. The quiet cost advantage |
| Ingress rating | IP55 | Dust and water-jet resistant. Fine for gyms, plants, vehicles |
| Pediatric | Separate Pedi-padz II required | Extra purchase If children are present, budget for it |
| 2026 list | $2,082 | Mid-to-upper. You are paying for the coach, not the shock |
Confirm the current PMA record and labeling for your exact variant in the FDA PMA database[2] before purchase, and check the model against the FDA recall database[4].
The five-year cost, honestly
Sticker price is the smaller half of an AED decision. The AED Plus wins the part nobody looks at, because its battery is not proprietary.
Device (2026 list) ……………. $2,082
CPR-D-padz, ~5 yr life ……….. 0 scheduled replacements in year 1-5
Battery, consumer 123A, ~5 yr …. 0 scheduled replacements in year 1-5
Five-year total …………….. ~$2,082 + cabinet
Philips HeartStart OnSite, same window
Device (2026 list) ……………. $1,589
Pads, ~2 yr life …………….. 2 replacements
Battery, ~4 yr life ………….. 1 replacement
Five-year total …………….. higher than sticker suggests
Labeled estimate. Replacement counts use ceil(years ÷ component life) − 1 and assume no deployment. A real rescue consumes the pads immediately, so budget a spare set regardless of model. Run your own numbers in the AED cost calculator.
The point is not that the AED Plus is cheap. It is that the gap between it and a cheaper unit narrows once you count the consumable cycle, and it narrows further the longer you own the device. Ongoing parts: AED pads and AED batteries.
Who should buy it, and who should not
Buy the AED Plus if
- Your responders turn over. Gyms, schools, shift work. The coach matters most when the rescuer is rusty. See the gyms guide.
- The environment is physical. Sudden cardiac death risk is markedly elevated during vigorous exertion[5], which is exactly where compression quality collapses.
- You keep devices a long time. The 5-year pad and consumer-battery cycle pays back over years, not months.
- You want one electrode, not two. CPR-D-padz removes a decision from the worst 60 seconds of someone’s life.
Buy something else if
- You want the simplest possible box. Philips HeartStart OnSite is lighter and easier for a stranger to operate.
- Budget is the binding constraint. HeartSine 350P is the lowest entry price and folds pads and battery into one dated cartridge.
- You need connectivity or fleet reporting. ZOLL AED 3 adds WiFi and dashboard readiness. Worth it above roughly ten units.
- Children are the primary population. The Philips FRx pediatric key is simpler than swapping to Pedi-padz. See the schools guide.
How it compares
| Model | CPR feedback | Pad life | 2026 list | Best for |
|---|---|---|---|---|
| ZOLL AED Plus | Depth + rate | ~5 yr | $2,082 | Untrained responders |
| ZOLL AED 3 | Depth + rate + dashboard | ~5 yr | $2,399 | Fleets 10+ |
| Philips HeartStart OnSite | None | ~2 yr | $1,589 | Simplest to operate |
| HeartSine 350P | None | ~4 yr (Pad-Pak) | $1,411 | Lowest entry price |
| LIFEPAK CR2 | Depth + rate | ~4 yr | $2,256 | Managed programs |
Deciding between the two ZOLL units specifically? Read ZOLL AED 3 vs AED Plus. Cross-shopping brands? Philips vs ZOLL. Considering a used unit? Best refurbished AEDs. Whole-lineup view: ZOLL brand hub and the AED brands hub.
Sources
- FDAUS Food and Drug Administration. “Automated External Defibrillators (AEDs).” fda.gov
- FDAUS Food and Drug Administration. Premarket Approval (PMA) database. accessdata.fda.gov
- Federal Register“Effective Date of Requirement for Premarket Approval for Automated External Defibrillator Systems,” 2015. federalregister.gov
- FDAUS Food and Drug Administration. Medical Device Recalls database. accessdata.fda.gov
- NEJMAlbert CM, et al. “Triggering of sudden death from cardiac causes by vigorous exertion.” N Engl J Med. 2000. nejm.org
- AHAAmerican Heart Association. AED Implementation Guide. cpr.heart.org
Editorial content only. Not medical advice. Specifications reflect manufacturer documentation and FDA records current at publication; confirm the PMA record, labeling and recall status of your exact variant and package before purchase. Prices are 2026 US list at authorized distributors and change without notice. Cost figures are labeled estimates, not quotes.
