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Fortinet FortiGate-VM vs SonicWall TZ comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Apr 6, 2025

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
7.5
Fortinet FortiGate is cost-effective, easy to manage, enhances security, reduces costs, and offers high returns and efficiency.
Sentiment score
8.2
Fortinet FortiGate-VM enhances network stability and security, offering cost savings and scalability, though ROI perceptions vary among users.
Sentiment score
7.4
SonicWall TZ ensures rapid returns, blocking threats effectively, proving invaluable for small businesses, especially during the pandemic.
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.
I observed a fifty to sixty percent reduction in operational costs after migrating to FortiGate VM.
They have a platform that organizes their networks and access effectively.
That is a reason to buy a firewall, and it is challenging to put a monetary value on security.
 

Customer Service

Sentiment score
7.0
Fortinet FortiGate support receives mixed reviews on responsiveness and accessibility, excelling with third-level engineers but needing consistency improvements.
Sentiment score
6.6
Fortinet FortiGate-VM support is praised for responsiveness but faces criticism for response times, expertise, and regional consistency.
Sentiment score
5.4
SonicWall TZ customer service varies; some praise efficiency and competence, while others note slow response and communication issues.
I would rate their support for FortiGate a nine out of ten.
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.
Their support is helpful and effective.
The end-user support is delayed at levels L2 and L3.
Customer service and support are very good.
Customer service is excellent.
 

Scalability Issues

Sentiment score
7.3
Fortinet FortiGate is scalable for various organizations, though hardware scaling and licensing can present challenges.
Sentiment score
8.1
Fortinet FortiGate-VM offers scalable and efficient performance in virtual environments, with flexibility and enhanced capacity compared to hardware.
Sentiment score
8.6
SonicWall TZ offers suitable scalability for small to medium businesses, but model selection is crucial for future growth planning.
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.
It can start with a single core and scale up to a 32-core license for a robust deployment.
 

Stability Issues

Sentiment score
7.9
Fortinet FortiGate is praised for reliability, though configuration and environment impact stability, with newer features occasionally causing issues.
Sentiment score
7.9
Fortinet FortiGate-VM is generally reliable, with occasional stability issues that improve with proper sizing, configuration, and updates.
Sentiment score
7.6
SonicWall TZ is highly reliable and stable, though minor issues occur under heavy use or after updates.
We're experiencing 99.999% availability consistently.
I would rate the stability of Fortinet FortiGate a ten out of ten.
We have not had any problems with the operating systems or maintenance of subscriptions.
Recently they have had more, requiring internal testing to ensure deployment stability.
In terms of stability, SonicWall doesn't have performance issues.
SonicWall TZ is definitely stable and offers a good value for money.
 

Room For Improvement

Fortinet FortiGate users experience firmware instability, poor support, non-intuitive interface, and desire improvement in pricing, integration, and VPN capabilities.
Fortinet FortiGate-VM requires improvements in UI, stability, support, pricing, cloud integration, analytics, and user-friendly management.
SonicWall TZ needs an improved interface, reporting, security features, and more efficient support, licensing, and advanced options.
By providing an integrated solution, users would have access to all features and functionalities within a single window, eliminating the need to navigate through multiple windows.
Investing in a solution that can accommodate such growth would be more cost-effective than repeatedly purchasing new hardware.
The constant daily revisions necessitate meticulous identification of the relevant documents to prevent the use of outdated information that could jeopardize our environment.
The API needs better integration to match accounts and objects more effectively.
Now, these features require separate products like FortiManager, FortiAnalyzer, and a FortiCloud subscription for reporting.
We cannot really position the Fabric if the licenses, renewal parts, or other components have monetary requirements that hinder full utilization.
Integration with other vendors, especially with VPNs, can be challenging and requires more effort when configuring.
SonicWall TZ could benefit from newer technology.
The VPN license should be improved by providing more free SSL VPN licenses.
 

Setup Cost

Fortinet FortiGate offers competitive pricing and cost-effective licensing, though renewal and support costs can be high.
Fortinet FortiGate-VM is competitively priced, with flexible licensing, though costs can rise with scaling and advanced features.
Buyers find SonicWall TZ pricing competitive but potentially high due to additional subscription and licensing fees, affecting affordability.
The most expensive part is the renewal of the license subscription.
FortiGate is priced lower than Palo Alto.
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.
The license for Fortinet FortiGate-VM costs 100K to 150K Philippine pesos per year for VM1 or VM2.
They could be slightly cheaper, however, Fortinet offers a good cost-benefit ratio.
FortiGate VM is considered a premium product, which can be costly.
More licenses are required to purchase the perpetual license for SSL VPN and Global VPN.
When comparing similar products across vendors, there may be a small difference in cost.
I would also position its pricing as a three, where one is the lowest price and ten is the highest.
 

Valuable Features

Fortinet FortiGate excels in robust security, user-friendly management, scalability, and cost-effectiveness with superior VPN, firewall, and UTM features.
Fortinet FortiGate-VM provides robust security, easy management, seamless integration, flexibility, and cost-effective protection with comprehensive features and control.
SonicWall TZ offers user-friendly management, robust security features, and scalability, making it ideal for small to medium enterprises.
The firewall, IPS, and VPN functions are the most valuable 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.
The more integrated we become, the less we spend on solving bugs and issues, allowing us to reduce time focusing on understanding and improving our network.
FortiGate VM allows me to avoid the hardware lease recycle every five to eight years.
Fortinet Security Fabric and real-time threat response capabilities are the main selling points.
For SMB segments, SonicWall performs well.
It was beneficial during COVID for remote work through its VPN functionality.
The advanced gateway security features such as web filter, application control filter, IPS, ideas, gateway antivirus, anti-spyware, and botnet filter are valuable.
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
2nd
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
364
Ranking in other categories
Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
Fortinet FortiGate-VM
Ranking in Firewalls
9th
Average Rating
8.4
Reviews Sentiment
7.4
Number of Reviews
121
Ranking in other categories
No ranking in other categories
SonicWall TZ
Ranking in Firewalls
18th
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
84
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 21.4%, up from 17.8% compared to the previous year. The mindshare of Fortinet FortiGate-VM is 1.9%, up from 1.6% compared to the previous year. The mindshare of SonicWall TZ is 3.0%, up from 2.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls
 

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.
Sitti Ridzma Salahuddin - PeerSpot reviewer
Integrates seamlessly and helps with real-time threat response
Since the solution we offered was a complete suite with Fortinet FortiGate-VM, it was easier for them to manage because they have FortiManager as well. The main reason they wanted to position FortiGate in the cloud was so that they could easily deploy through FortiManager. That was the selling point we had for them. Especially for their multiple branches, where they had approximately 60 sites, and some assets were in AWS, it was really a good deployment opportunity. FortiManager and FortiAnalyzer were also part of that solution.
Rias Majeed - PeerSpot reviewer
Robust VPN integration stands out despite needing enhanced vendor compatibility
The integrated VPN functionality is working well with the global VPN client, which is a fast client, though it comes at a cost. SonicWall TZ is functional depending on the service level taken by the user. For SMB segments, SonicWall performs well. Despite lacking certain features, it is still considered a good product. The appliance itself is functional and stable, offering integrated solutions.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Educational Organization
14%
Comms Service Provider
8%
Manufacturing Company
6%
Computer Software Company
19%
Financial Services Firm
8%
Government
6%
Comms Service Provider
6%
Computer Software Company
17%
Comms Service Provider
8%
Manufacturing Company
7%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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...
Which would you recommend - FortiGate VM or Azure Firewall?
Both of these solutions are excellent options that provide flexible scalability and solid security. Fortinet Fortigat...
What do you like most about Fortinet FortiGate-VM?
An enhanced security solution for any kind of alert that we have configured.
Would you choose Fortinet Fortigate or Sonicwall TZ?
I’ll say it depends on your needs. Fortinet FortiGate and SonicWall TZ are both next-gen firewalls (NGFW) with simila...
What do you like most about SonicWall TZ?
The most valuable feature of SonicWall TZ is the double authentication, where it asks for one password and again asks...
What is your experience regarding pricing and costs for SonicWall TZ?
The price is normal. It is a nominal cost for an SMB TZ used for SMB businesses. However, more licenses are required ...
 

Also Known As

FortiGate 60b, FortiGate 60c, FortiGate 80c, FortiGate 50b, FortiGate 200b, FortiGate 110c, FortiGate, Fortinet Firewall
FortiGate Virtual Appliance, FortiGate-VM
Dell SonicWALL TZ
 

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
Security7 Networks, COOPENAE
AeroM_xico Delta TechOps, Unimat
Find out what your peers are saying about Fortinet FortiGate-VM vs. SonicWall TZ and other solutions. Updated: June 2025.
858,469 professionals have used our research since 2012.