HeartSine markets three AEDs in the Samaritan PAD line: the 350P (semi-automatic), 360P (fully automatic), and 450P (semi-automatic with CPR rate advisor). All three share the same lightweight 2.4 lb chassis, the same IP56 outdoor rating, the same 4-year combined Pad-Pak architecture, and the same 10-year device warranty. What differs is shock-delivery automation and CPR coaching.
Buyers usually arrive at this comparison after deciding HeartSine is the right brand, the lineup question is which configuration matches their operating environment. The price gap from cheapest to most expensive is roughly $350 ($1,411 to $1,761).
Quick answer
350P for single-AED budget buyers, schools, churches, and small businesses with trained or partially trained responders. 360P for fully-public-access deployments where the rescuer may be untrained, fully automatic eliminates shock-button hesitation. 450P for facilities with designated responders who want CPR rate coaching but not necessarily full Real CPR Help® depth measurement.
Head-to-head three-way spec comparison
| Spec | 350P | 360P | 450P |
|---|---|---|---|
| Retail price (2026) | $1,411 | $1,651 | $1,595 |
| Shock delivery | Semi-automatic | Fully automatic | Semi-automatic |
| CPR feedback | Voice prompts only | Voice prompts only | CPR rate advisor (visual) |
| Pad-Pak shelf life | 4 years | 4 years | 4 years |
| Pad-Pak cost | $236 | $236 | $236 |
| Pediatric workflow | Separate Pediatric Pad-Pak | Auto-detect | Separate Pediatric Pad-Pak |
| IP rating | IP56 | IP56 | IP56 |
| Weight | 2.4 lb / 1.1 kg | 2.4 lb / 1.1 kg | 2.4 lb / 1.1 kg |
| Warranty | 10 years | 10 years | 10 years |
| 5-year total ownership cost | $1,215–$1,500 | $1,420–$1,700 | $1,720–$2,100 |
The 350P: lowest 5-year cost on the market
The HeartSine 350P at $1,411 retail is the cheapest of the FDA-approved models we review. With one $236 Pad-Pak replacement over 5 years and a $135.15 cabinet, the program totals $1,782.15 over 5 years, the lowest in the AED comparison set. The 2026 AED Best Brands Best Budget award sits on this device.
The trade-offs: semi-automatic only (shock-button hesitation risk in untrained rescuers), voice prompts only (no CPR coaching), and a separate Pediatric Pad-Pak required for child rescue. For schools and small businesses with trained or partially-trained responders, those trade-offs are acceptable. For lay-public-access deployments, they are not.
The 360P, fully automatic plus auto-detect pediatric
The 360P is the only HeartSine device with fully automatic shock delivery. Combined with auto-detect pediatric (no separate Pad-Pak required for child rescue), the 360P is the lay-public-access pick in the HeartSine lineup.
The auto-detect feature works through the Pad-Pak’s built-in sensors, the device estimates patient size from pad impedance and adjusts shock energy accordingly. This is not as clean as the LIFEPAK CR2‘s button-based child mode or the FRx’s Infant/Child Key, but for facilities that prefer one-pad-set simplicity, the 360P removes the swap workflow.
The 450P, CPR rate advisor adds coaching
The 450P adds a visual CPR rate advisor, a flashing icon that shows the rescuer the target compression rate (100-120 BPM per AHA guidelines). This is rate coaching only, not depth coaching. ZOLL devices provide both depth + rate coaching; HeartSine’s 450P provides rate only.
For facilities with designated responders who want some CPR coaching but not the premium ZOLL price, the 450P is a middle option. Trade-off: $300 premium over the 350P for what is genuinely a less comprehensive coaching feature than what ZOLL offers.
Pad-Pak economics across the lineup
All three devices use the same Pad-Pak architecture: a single combined cartridge that includes both the electrode pads and the battery, with a 4-year shelf life. Buyers track one expiration date for the consumables. Replacement is one purchase every 4 years.
The adult Pad-Pak is one part at one price, $236, on all three devices. The pediatric Pad-Pak is $279, also the same across all three.
Real-world deployment scenarios
Scenario A, small Baptist church, 250 members, single deacon trained in CPR
Budget-conscious. Adult congregation. One trained responder. Recommendation: HeartSine 350P. $1,411 retail. The deacon’s training covers semi-automatic shock-button workflow. No pediatric requirement (no childcare program). 5-year total ~$1,680, fits a small church budget.
Scenario B, community recreation center, lobby AED, untrained volunteer staff
Public access. Volunteer-staffed front desk. High turnover. Mixed adult + occasional child program. Recommendation: HeartSine 360P. Fully automatic removes shock-button hesitation. Auto-detect pediatric covers occasional child use. IP56 supports an outdoor pool deck if expanded.
Scenario C, 80-employee manufacturing shop, 1 AED, on-staff safety manager certified in CPR
Trained responder. Industrial floor environment. The safety manager wants CPR coaching but not full ZOLL premium. Recommendation: HeartSine 450P. CPR rate advisor + IP56 dust-and-water rating + lightweight 2.4 lb chassis match a shop-floor wall-mount deployment.
Verdict by buyer profile
Budget-First · Schools · Churches · Small Business
HeartSine 350P
Cheapest of the FDA-approved models we review. The 5-year program totals roughly $1,680. The pick when low cost + low maintenance overhead are non-negotiable. Read 350P review →
Lay Public Access · Untrained Staff · Mixed-Age
HeartSine 360P
Fully automatic removes shock-button hesitation. Auto-detect pediatric handles occasional child rescue. The lay-public-access pick in the HeartSine lineup. Read 360P review →
| Model | New | Recertified | You save | Buy |
|---|---|---|---|---|
| Philips HeartStart OnSite | $1,589 | $875 | $714, 45% | 1 to 45 or more |
| Philips HeartStart FRx | $2,099 | $875 | $1,224, 58% | 1 to 45 or more |
| ZOLL AED Plus | $2,082 | $875 | $1,207, 58% | 1 to 45 or more |
| ZOLL AED 3 | $2,399 | $1,150 | $1,249, 52% | 1 to 45 or more |
| HeartSine Samaritan PAD 350P | $1,411 | $875 | $536, 38% | 1 to 45 or more |
| HeartSine Samaritan PAD 450P | $1,761 | $875 | $886, 50% | 1 to 45 or more |
| Cardiac Science Powerheart G5 | $2,157 | $1,225 | $932, 43% | 1 to 45 or more |
Designated Responder · Wants CPR Coaching · Light + Rugged
HeartSine 450P
CPR rate advisor + IP56 + 10-year warranty. The pick when the operating environment wants some coaching at a sub-ZOLL price. Read 450P review →
Frequently asked questions
Are all three FDA-approved?
Yes. All three hold current FDA premarket approval (PMA). Verify in the FDA database before purchase.
Which has the lowest 5-year cost?
The 350P at roughly $1,680 over 5 years, including one Pad-Pak replacement and a cabinet.
Are the Pad-Paks interchangeable across the three models?
No. Each model uses a model-specific Pad-Pak (different sensors in the 450P and 360P). Buy the correct Pad-Pak for the device.
Which one is the lightest?
All three weigh 2.4 lb / 1.1 kg, the lightest FDA-approved AED chassis on the market.
Does the 450P provide depth-of-compression coaching?
No. The 450P provides rate coaching only (visual icon showing target BPM). For depth + rate coaching, the ZOLL AED Plus or ZOLL AED 3 is the correct pick.
Which is the right choice for outdoor sports fields?
The 360P (fully automatic) for lay-rescuer environments, or the 450P (with CPR coaching) for designated-responder programs. All three carry IP56, suitable for outdoor deployment with cabinet protection.
Run the math for your specific facility
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Sources
- FDA Premarket Approval (PMA) database
- American Heart Association, CPR and AED guidance
- HeartSine (Stryker), Samaritan PAD 350P, 360P, 450P product specifications
Educational comparison. Pricing reflects 2026 authorized US distributor reference points.
