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Fortinet FortiGate vs Fortinet FortiOS vs Palo Alto Networks VM-Series comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
5.7
Fortinet FortiGate offers cost-effective security with quick deployment, improving efficiency, reducing downtime, and providing a strong return on investment.
Sentiment score
8.0
Fortinet FortiOS offers competitive pricing, easy scalability, and reliable security, resulting in solid ROI and reduced upgrade costs.
Sentiment score
6.3
Palo Alto Networks VM-Series boosts agility, efficiency, security, and ROI, with significant cost-effective satisfaction and improved data visibility.
Clients are now comfortable and not wasting productive hours on IT support.
The automation part is giving us a cost benefit and speed; we can react faster.
It's a very useful tool to mitigate and protect your enterprise.
Once it is deployed, I do not have to revisit or replace the hardware.
The pricing of FortiOS is competitive and reasonable compared to other leading products such as Palo Alto and Check Point.
Fortinet is strong in terms of cost and compatibility with other vendors.
Customers can see data within a week, indicating a quick return on investment.
 

Customer Service

Sentiment score
6.4
Fortinet FortiGate support is mostly praised for responsiveness and knowledge, though inconsistencies exist in complex cases or regions.
Sentiment score
7.8
Fortinet FortiOS support is helpful but inconsistent, with quick basic solutions, delays on complex issues, and documentation needing improvement.
Sentiment score
7.5
Palo Alto Networks VM-Series has responsive, knowledgeable support, though communication issues and high premium costs are noted by users.
They offer very accurate solutions.
The quick resolution of issues with Fortinet FortiGate is due to the support of the company and the fact that the equipment is easy to work with.
I would rate the technical support for Fortinet FortiGate a ten out of ten.
I would rate them nine or ten out of ten.
Fortinet technical support is very responsive and helpful.
Support engineers sometimes lack eagerness to assist with issues such as the memory problem.
The support quality could be improved.
Resolving issues promptly.
They are responsive and provide high-quality assistance.
 

Scalability Issues

Sentiment score
7.0
Fortinet FortiGate offers scalability and easy integration for diverse environments, catering to businesses from small to large enterprises.
Sentiment score
8.6
Fortinet FortiOS offers scalable solutions for varying business sizes, though some hardware upgrades may be needed for expansion.
Sentiment score
7.4
Palo Alto Networks VM-Series offers high scalability and adaptability, with some configuration challenges but generally positive user experiences.
They scale up really well from smaller models like the FortiGate 40 and 50 to bigger sites with the FortiGate 100 for more throughput - up to enterprise datacenters.
The variation comes in terms of the interfaces and throughputs, but from a security perspective, you get the same benefit, irrespective of whether you have an entry-level unit or an enterprise.
We determine sizing based on multiple factors: number of users, available links, traffic types, server count, services in use, and whether services will be published.
When customers' networks grow and needs expand, we can easily switch between models to trade up devices.
It allows for the expansion of users and devices without additional licensing costs.
Fortinet FortiOS is scalable, allowing the addition of users and firewalls as required.
They are easy to upgrade, and with credit licensing, they scale effectively according to demand.
The solution is scalable and can easily handle an increase in the number of users.
It is easy to use with an excellent graphical user interface and extensive documentation, which contributes to its high scalability.
 

Stability Issues

Sentiment score
7.5
Fortinet FortiGate is highly stable and reliable, excelling in continuous operation with effective network management, despite occasional update issues.
Sentiment score
7.5
Fortinet FortiOS is stable and reliable, outperforming alternatives, with any issues mainly due to configuration challenges.
Sentiment score
8.1
Palo Alto Networks VM-Series is highly stable, with minor issues during updates, making it a robust choice for users.
We're experiencing 99.999% availability consistently.
I would rate the stability of Fortinet FortiGate a ten out of ten.
Currently, we are experiencing a general outage of one of the main internet service providers of the Dominican Republic, and we have not been impacted in our operations because with SD-WAN, we have another internet service provider and we are working with the second WAN connection without any disruption.
While the product is largely stable, it sometimes faces memory issues in specific versions like 11 OE, which can be disruptive.
Stability is a seven out of ten because during version migrations, and sometimes with new versions, Fortinet is not as good.
I would rate the stability of FortiOS as an eight out of ten.
Hardware is generally very stable.
I have not experienced any major problems or downtime.
Perfection is unlikely as the dynamic nature of traffic and constant changes can result in occasional bugs despite regular updates.
 

Room For Improvement

Users express concern over Fortinet FortiGate's interface stability, functionality, performance issues, and call for improved support and features.
Fortinet FortiOS users want improved usability, better management, enhanced security features, and more efficient support, especially for 60D models.
Palo Alto Networks VM-Series needs UI, reporting, integration, cloud compatibility, scalable features, clear pricing, and enhanced AI capabilities.
Investing in a solution that can accommodate such growth would be more cost-effective than repeatedly purchasing new hardware.
While Fortinet claims to offer a comprehensive network solution, it falls short in addressing computer application issues, particularly server security.
When considering Sophos XG, which we also use, the logging and reporting functionality is notably more efficient.
Fortinet FortiOS faces memory issues, which can lead to unexpected downtimes.
There should be more documentation on how to use the CLI or how to perform CLI versions of tasks that can be done through the GUI.
Compared to other market leaders like Palo Alto and Check Point, FortiOS has many bugs in its initial releases.
Integration with CSIRT across all use levels would make it easier for administrators to stay updated on the blocked entities without manual intervention.
Most customers go for partner-enabled support, which involves multiple layers, leading to delays.
When managing the firewall, it involves a Strata Cloud web browser that requires improvement to enhance deployment ease and call center efficiency.
 

Setup Cost

Fortinet FortiGate offers high initial costs but competitive pricing, valued features, and flexible licensing compared to competitors.
Fortinet FortiOS pricing is moderate and scalable, with renewal costs potentially high despite competitive initial bundling offers.
Palo Alto Networks VM-Series offers robust security and flexible pricing but requires careful licensing for cost-effectiveness.
Last year, I renewed the support for three years, which can sometimes be expensive but depends on the security benefits and how it helps us.
It offers cost savings as it is generally cheaper than the competition.
It is about 20% cheaper.
It is an affordable solution for us.
Fortinet products are somewhat pricey, similar to Cisco equivalents, however, they have justified their price point.
I am satisfied with the pricing, licensing, and setup costs of FortiOS, rating it nine out of ten compared to other familiar leading firewalls.
Palo Alto is expensive in terms of pricing, particularly when comparing features to cost.
The cost involves purchasing through a vendor, which might mark up due to the supply chain.
Pricing for Palo Alto Networks is higher than other OEMs, but considering the robustness and features, it gains customer trust.
 

Valuable Features

Fortinet FortiGate offers robust, affordable security with user-friendly interface, centralized management, and efficient SD-WAN capabilities.
Fortinet FortiOS offers ease of use, robust security features, scalability, and cost-effectiveness, ideal for large-scale deployments.
Palo Alto Networks VM-Series offers advanced threat management, scalability, and security for cloud and data center environments with intuitive features.
In terms of security, we have not experienced any security flaws or loopholes, and it has proven to be quite stable.
FortiGate has helped reduce the risk of cyberattacks that might disrupt our client's production.
These features help reduce our downtime, manage the ISPs, and deploy SLAs for all the website traffic.
It is user-friendly when it comes to turning on features, and it has been reliable and effective.
The threat intelligence in FortiOS is very high, and the system is scalable without additional licensing costs.
The solution offers good threat intelligence, which is crucial for our customers' security purposes.
We use these tools to prevent all known and unknown threats using Palo Alto Networks' Wildfire and other data filtering tools to gather information, analyze traffic, manage malicious traffic, and offer visibility, control, and attack prevention.
Palo Alto's robust threat intelligence supports new updates, and I can open cases directly with their Threat Intelligence team.
The DNS security significantly enhances security through visibility and detection, allowing control over crucial traffic like DNS, which is often exploited by ransomware.
 

Mindshare comparison

As of October 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.4%, up from 19.1% compared to the previous year. The mindshare of Fortinet FortiOS is 1.2%, up from 0.8% compared to the previous year. The mindshare of Palo Alto Networks VM-Series is 1.1%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Market Share Distribution
ProductMarket Share (%)
Fortinet FortiGate20.4%
Palo Alto Networks VM-Series1.1%
Fortinet FortiOS1.2%
Other77.3%
Firewalls
 

Q&A Highlights

DL
Mar 23, 2021
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
A stable solution with an intuitive interface and quick customer service
I have been working with Fortinet FortiGate, WatchGuard, Sophos, and SonicWall. I'm not as comfortable with SonicWall because of their UI and limitations. I prefer Fortinet above all other options. When it comes to configuration, I am confident in my ability to handle various tasks, including creating policies such as firewall rules, web policies, and application policies. Additionally, I can configure VPNs and implement load balancing, among other tasks. Overall, I feel much more comfortable working with Fortinet. Fortinet has made significant improvements by integrating AI with firewalls for threat analysis and prevention. In the past 2-3 years, they have launched FortiSASE and SIEM, and they also provide SOC services. Both Palo Alto and Fortinet FortiGate are excellent. While Fortinet FortiGate comes at higher prices, the functionality and support justify the cost. They promptly resolve firmware issues and inform all support providers about configuration changes.
Harshama Silva - PeerSpot reviewer
We have improved network security with user-friendly controls and high threat intelligence
FortiOS is very user-friendly and easy to configure for L1, L2, and L3 personnel. Its web filtering, application control, and IPS features are very user-friendly, easy to manage, and deploy. The threat intelligence in FortiOS is very high, and the system is scalable without additional licensing costs. FortiOS allows us to expand the number of users and devices as our network needs grow.
RonnieYazdani - PeerSpot reviewer
User-friendly CLI and efficient dashboard streamline operations with robust security features
I find Palo Alto Networks VM-Series easy to deploy, and none of my customers have had significant complaints. My customers have high certifications provided by Palo Alto Networks. The friendly dashboard and the ability to easily command and use the CLI make Palo Alto Networks VM-Series a better product. It offers robust solutions, making it valuable to my customers.
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Comparison Review

it_user216600 - PeerSpot reviewer
Jan 3, 2016
Sophos UTM vs. Fortinet FortiGate
I have used both Sophos and Fortinet products in production and I have found the Sophos UTM appliances (hardware and virtual) to be a better fit most of the time -- with a few caveats which I will touch on below. In both instances, the transition from TMG will be mostly straightforward. The main…
 

Answers from the Community

DL
Mar 23, 2021
Mar 23, 2021
In the best tradition of these questions, Feature-wise both are quite similar, but each has things it's better at, it kind of depends what you value most. PA is good at app control, web filtering and such like, they have always been top of the pile there. The GUI is very good, and their product is very user-focused. Fortinet is good for scalability and predictable high throughput (ASICs in the...
2 out of 4 answers
AT
Mar 20, 2021
Hi, Both FT and PA have compelling features for large Enterprises. I would like to add a few good points about Fortinetwhich might be helpful ( from my 13 years of engagement with them as Distributor and Partner) Fortinet:  Have higher throughput; which comes with competitive rates Wide range of models to select to meet your requirement, without spending heavliy Outstanding customer support and very active customer care team Easly available skilled resources from the channel for deployment and post-implementation support  Regards Abhilash
LD
Mar 22, 2021
Hi PaloAlto is better when working on app control feature and special virtual wire links. Execpt that specific point, Fortinet is above. Best Regards, Damien
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
6%
Computer Software Company
13%
Manufacturing Company
10%
Financial Services Firm
8%
Government
8%
Computer Software Company
15%
Financial Services Firm
11%
Manufacturing Company
10%
Performing Arts
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business350
Midsize Enterprise130
Large Enterprise187
By reviewers
Company SizeCount
Small Business42
Midsize Enterprise13
Large Enterprise23
By reviewers
Company SizeCount
Small Business27
Midsize Enterprise17
Large Enterprise25
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
When you compare these firewalls you can identify them with different features, advantages, practices and usage a...
What is the biggest difference between Sophos XG and FortiGate?
From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...
What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?
As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...
Features comparison between Palo Alto and Fortinet firewalls
In the best tradition of these questions, Feature-wise both are quite similar, but each has things it's better at, it...
What do you like most about Fortinet FortiOS?
The SSL VPN is fee for use is most attractive.
What is your experience regarding pricing and costs for Fortinet FortiOS?
I rate the pricing for FortiOS as eight or nine out of ten. It is an affordable solution for us.
How does Azure Firewall compare with Palo Alto Networks VM Series?
Both products are very stable and easily scalable. The setup of Azure Firewall is easy and very user-friendly and the...
What is your experience regarding pricing and costs for Palo Alto Networks VM-Series?
The pricing is more on the expensive side, but it is justified due to its functionality, reliability, and throughput,...
 

Overview

 

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Warren Rogers Associates
Find out what your peers are saying about Fortinet, Netgate, OPNsense and others in Firewalls. Updated: September 2025.
868,759 professionals have used our research since 2012.