Defibrillator Comparison: Lifepak 15 VS Zoll X Series

October 5, 2021
Defibrillator Comparison: Lifepak 15 VS Zoll X Series

FDA Approved Defibrillators such as the Lifepak 15 and the Zoll X Series have been becoming the most highly requested defibrillation systems recently. While an increasing amount of patient care areas are opening within hospitals and other medical facilities, defibrillators enhance the added spaces demand for any potential cardiac arrest situations. Defibrillators such as these can be found in numerous medical units ranging from the emergency room, ICU units, medical clinics, community centers, businesses, and even public schools.

To learn more about our two most popular defibrillators—Lifepak 15 and the Zoll X Series—continue reading further.


Lifepak 15 front
Zoll X Series front
SpecificationsLifepak 15Zoll X Series
Dimensions (HxWxD)12.5 x 15.8 x 9.1 in (31.7 x 40.1 x 23.1 cm)10.39 x 8.89 x 7.91 in (26.4 x 22.6 x 20.1 cm)
Weight (fully featured)
Weight (basic defibrillator)
20.1 lbs (9.1 kg)
18.9 lbs (8.6 kg)
11.7 lbs (5.3 kg)
10.58 lbs (5 kg)
Display TypeFull Color or SunVue™ display high contrastColor LCD
Display Size (Diagonally)8.4 in (212 mm) diagonal6.51 in (16.56 cm) diagonal
Modes of Operation
  • AED Mode
  • Manual Mode
  • Archive Mode
  • Setup Mode
  • Service Mode
  • Demo Mode
  • AED Mode
  • Manual Mode
WaveformBiphasic Truncated Exponential Rectilinear Biphasic
Energy Selections2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 50, 70, 100, 125, 150, 175, 200, 225, 250, 275, 300, 325, and 360 joules1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 50, 70, 85, 100, 120, 150, 200 joules
Energy Charge TimeTo 360 joules <10 secondsLess than 7 seconds with a new, fully charged battery
Pacing Rate40—170 PPM30—189 bpm ± 1.5%
  • ECG
  • SpO2
  • SpCO
  • SpMET
  • NIBP
  • CO2
  • ECG monitoring
  • SpO2
  • EtCO2
  • NIBP
ECG Monitoring—Patient Connection3-wire cable used for 3-lead, 5-wire cable used for 7-lead, 10-wire cable used for 12-lead3-lead cable, 5-lead cable, 12-lead cable
CPR MonitoringCPR Metronome CPR Metronome
Patient ModeAdult, PediatricAdult, Pediatric, Neonate
Patient Data Transmission
  • Wired
  • Wireless
  • Bluetooth (short-range)
  • Wifi
  • USB
Self testingYesNo
Operating Temperature 76.6—113.4°F (24.8—45.2°C)32—122°F (0—50°C)
Printer Paper Size3.9 in (100 mm)3.19 in (80 mm)
Printer Speed25 mm/sec or 12.5 mm/sec25mm/sec or 50 mm/sec
Printer Delay8 seconds6 seconds
BatteryRechargeable Lithium-ion, 11.1 VRechargeable Lithium-ion, 11.1 V
Battery Charge Time4 hours and 15 minutes (typical)4 hours
PowerAC Power Adapter: 100—240 VAC 60/50 Hz, 1.4 A – 0.6 A
DC Power Adapter: 11.0—17.6 Vdc, 15—10 A
AC Power Adapter: 100—240 VAC 50—60 Hz, 2 A 100—115 VAC, 400 Hz, 2 A


Lifepak 15 left side
Lifepak 15 back side


Physio-Control continues its legacy of trailblazing technology with its most advanced emergency response monitor/defibrillator – the Lifepak 15. The Physio-Control Lifepak 15 defibrillator/monitor is the new standard in emergency care for ALS teams who want the most clinically and operationally innovated device available today. The Lifepak 15 integrates Masimo Rainbow SET technology that monitors SpO2, Carbon Monoxide, and Methemoglobin. A unique platform, the LP 15 uses Lithium-ion battery technology, incorporates the SunVue display screen for easy viewing in bright sunlight, and data connectivity to easily collect and send patient information.

The Lifepak 15 has a similar form factor and user interface to the Lifepak 12 defibrillator that will help ease the transition and lower training costs. These features and more have helped the Lifepak 15 become an industry favorite.


Some of the other Lifepak 15 features include:

  • Dual-mode LCD screen with SunVue for glare-free visuals
  • New monitoring parameters that detect hard-to-diagnose conditions and improve patient care with Masimo Rainbow Technology
  • ADAPTIV biphasic technology provides the option to escalate to 360J for best results
  • Proven CPR Guidance – Demonstrated to aid users in performing compressions and ventilations within the recommended range of AHA Guidelines
    • The CPR Metronome uses audible prompts to guide you
  • 12-lead ECG capabilities
  • Toughened design – a shock-absorbing handle and a double-layer screen that can take a beating


Zoll X Series left side
Zoll X Series back side


The Zoll X Series is a lightweight, easy-to-use defibrillator made to assist EMS and hospital personnel on the job. The Zoll X defibrillator is based on a platform developed for military and air medical operations which rises to a new standard in ruggedness and durability. With advanced benefits built-in, the X Series defibrillator delivers real-time data to help inform medical professionals. When performing CPR, the X Series gives the rate, depth, and release of each CPR compression to best understand how the patient’s heart is reacting. The defibrillator also monitors and displays how long the patient has been without blood flow, aiding professionals in determining the next critical steps.

Additionally, the X Series combines the clinically superior therapeutic capabilities of Zoll defibrillation, pacing, and CPR quality improvement with the advanced monitoring parameters you need. This Zoll defibrillator offers unrivaled CPR support with numerical displays of compression depth and rate and a release indicator that shows you when to release for full recoil.


The following features of the Zoll X Series include:

  • Weighing at 11.7 lbs, the Zoll X Series is more compact than other competitive defibrillators
  • Lithium-ion SunPower battery delivers 6 hours of continuous run time to support any EMT operations
  • Despite being a smaller device, the Zoll X has a 6.5” display with plenty of configurable viewing options
  • Military-grade durability design
  • The See-Thru CPR Technology filters out compression activity from the ECG signals during CPR
  • 12-lead ECG capabilities
  • Additional features include – capnography, pulse oximetry, three invasive pressures, two temperature channels, and non-invasive blood pressure (NIBP)


Lifepak 15 right side
Zoll X Series right side


First and foremost, our units are not just technically refurbished, they are also cosmetically refurbished to look and perform as new. The unit is carefully inspected and tested by our skilled biomedical engineers who are highly certified and knowledgeable. Next, parts are replaced if only necessary to ensure that the unit is working efficiently. Once everything is in working order, the units are then calibrated to meet the original manufacturer’s specifications. This guarantees that the unit is operating in the same manner as when it was first manufactured. After the defibrillators are in great working conditions, they undergo a cosmetic restoration process where it is repaired, cleaned, painted, and decals replaced if necessary. Finally, the defibrillators go through a final quality control test before being labeled patient-ready. This guarantees Soma’s high-quality standards in offering the best capital medical equipment.

Soma Tech Intl offers both the Physio-Control Lifepak 15 and Zoll X Series up to 50% below OEM price along with the same service and warranty contracts as new. Soma Tech Intl is ISO 13485 certified and supplies medical equipment from top manufacturers. Furthermore, if you would like to request either of the two featured defibrillators, you can contact us at 1-800-GET-SOMA or email us at [email protected]. One of our knowledgeable sales representatives can assist you with any further inquiries you may have.


Here at Soma Tech Intl, we have rental options widely available that can allow hospitals to remain within their budget, and on track with their patient census and healthcare options. Defibrillator equipment such as the Lifepak 15 and Zoll X Series and many more can be rented for the short or long term with the option to own.

If your facility is interested in defibrillators or any other medical equipment rentals, please contact your local sales representative. Our sales representatives are more than willing to attend to your clinical needs and offer recommendations on which machines to rent. For any further inquiries, you can also contact us at 1.800.GET.SOMA or send us an email at [email protected].



For over 25 years, Soma Tech Intl has specialized in outfitting hospitals, surgical centers, and other healthcare facilities with quality, new, demo, and refurbished medical equipment. With one of the largest and most diversified medical equipment inventories, Soma has capabilities that exceed its competitors. Soma’s Rental Program was established to assist the medical industry with critical care equipment.

Regardless of the size, location, or financial circumstances of your facility, Soma can provide you with the equipment you need.



As September 29th is known for World Heart Day, everyone needs to take care of their heart health every day. However, due to underlying cardiovascular diseases and other chronic health conditions that can affect one’s own heart, having access to a defibrillator within any public setting can be vital. Cardiac arrest can happen anywhere in a hospital, medical facilities, and any other public domain. This is why having the proper defibrillation system such as the Physio-Control Lifepak 15 and the Zoll X Series at hand can help with emergency preparedness for unexpected circumstances. Both the Lifepak 15 and Zoll X Series are uniquely equipped with the essential features that guarantee reliance and durability.

Have you ever worked with either the Lifepak 15 or Zoll X Series defibrillators? Do you prefer the Lifepak or Zoll defibrillators? Is there any other information you would like to know more regarding these two units? Is your medical facility experiencing an increasing need for defibrillation systems? Leave us a comment below! Also, don’t forget to visit our other previous article on the Lifepak 20e vs Zoll R Series.

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