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Fortinet FortiGate-VM vs SonicWall TZ comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Oct 19, 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
5.9
Fortinet FortiGate offers strong security, cost efficiency, and easy integration, saving organizations up to 30% on data costs.
Sentiment score
3.6
Fortinet FortiGate-VM enhances security and network stability, offering favorable ROI and operational cost reductions for long-term users.
Sentiment score
5.8
SonicWall TZ is favored by small businesses for its cost-effectiveness, security, and fast ROI within eight months.
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.
We haven't used MPLS for over five years now, and it was extremely beneficial to see the changes from MPLS to SD-WAN using Fortinet FortiGate.
That is a reason to buy a firewall, and it is challenging to put a monetary value on security.
 

Customer Service

Sentiment score
6.6
Fortinet FortiGate support is generally effective, but some users report delays and issues with complex problem resolution and communication.
Sentiment score
6.0
Fortinet FortiGate-VM support is responsive and knowledgeable, though regional response times and occasional inexperience need improvement.
Sentiment score
3.9
SonicWall TZ receives mixed reviews on customer service, with technical support praised but improved response times requested.
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.
The speed of Fortinet's technical support is significantly faster compared to Palo Alto.
Their support is helpful and effective.
The end-user support is delayed at levels L2 and L3.
Customer service is excellent.
For support, I would rate SonicWall TZ five out of 10.
 

Scalability Issues

Sentiment score
7.1
Fortinet FortiGate efficiently scales for SMEs, though hardware upgrades can be challenging, with virtual deployments offering flexibility.
Sentiment score
6.5
Fortinet FortiGate-VM offers scalable and flexible solutions, handling heavy traffic with adaptability across diverse deployment environments.
Sentiment score
7.1
SonicWall TZ suits small to mid-sized businesses but planning and model choice are key for extensive scalability.
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.
Fortinet FortiGate-VM adapts effectively; for example, you have a limited number of VPN connections on VM01, accommodating around 1,000 remote users, and if the customer needs another endpoint, we can deploy VM02 and manage that transition effectively.
Scalability is well-supported, with the notable ability to implement features easily.
It can start with a single core and scale up to a 32-core license for a robust deployment.
 

Stability Issues

Sentiment score
7.7
Fortinet FortiGate is praised for its dependable stability, minimal downtime, and robust performance, especially with regular firmware updates.
Sentiment score
5.6
Fortinet FortiGate-VM is mostly stable, though updates and misconfigurations can cause occasional instability and feature-specific bugs.
Sentiment score
6.3
SonicWall TZ is praised for reliability and security, though occasional minor issues and update disruptions may occur.
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.
The product has been very stable, based on my ten to eleven years of experience.
In the past couple of years, they started releasing numerous new features, and things have become somewhat unstable.
The traffic is stable and seamless.
In terms of stability, SonicWall doesn't have performance issues.
SonicWall TZ rates 10 out of 10 for stability.
SonicWall TZ is definitely stable and offers a good value for money.
 

Room For Improvement

Users seek improvements in FortiGate's performance, web interface, reporting, documentation, licensing, and training resources.
Fortinet FortiGate-VM needs improved UI, reporting, technical support, integration, documentation, stability, and scalability, with better pricing and automation.
SonicWall TZ needs interface, reporting, and support improvements, while high pricing and complex licensing affect user satisfaction.
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.
The constant daily revisions necessitate meticulous identification of the relevant documents to prevent the use of outdated information that could jeopardize our environment.
I am concerned about Fortinet's ability to help us meet regulatory compliance because its optimal functionality requires deploying all solutions within the mesh as Fortinet products.
The API needs better integration to match accounts and objects more effectively.
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 robust features at a competitive price but can be costly, especially with licenses; long-term pricing negotiation advised.
Fortinet FortiGate-VM offers competitive pricing, though costs can vary based on licensing, features, and potential discounts.
SonicWall TZ's flexible pricing and upgrade promotions offer competitive, cost-effective solutions for small to medium enterprises despite setup costs.
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.
FortiGate is priced lower than Palo Alto.
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.
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 provides robust security, seamless integration, user-friendly interface, and cost-effective advanced threat management for diverse network environments.
Fortinet FortiGate-VM offers ease of use, robust security, and scalability, with features like SD-WAN, VPN support, and centralized management.
SonicWall TZ offers user-friendly configuration, robust security, VPN integration, remote access, and affordability, ideal for businesses.
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.
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.
Fortinet is the only provider to have successfully set up a unified operating system on all its products in the network security ecosystem.
For what we need to do, which is setting up a VPN connection between both sides and using it for SSL VPN connections for remote users, it works effectively and we haven't encountered vulnerabilities.
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
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
575
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Intrusion Detection and Prevention Software (IDPS) (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (2nd), Unified Threat Management (UTM) (1st)
Fortinet FortiGate-VM
Ranking in Firewalls
9th
Average Rating
8.4
Reviews Sentiment
6.6
Number of Reviews
135
Ranking in other categories
No ranking in other categories
SonicWall TZ
Ranking in Firewalls
18th
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
84
Ranking in other categories
No ranking in other categories
 

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 FortiGate-VM is 1.9%, up from 1.6% compared to the previous year. The mindshare of SonicWall TZ is 2.8%, up from 2.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Market Share Distribution
ProductMarket Share (%)
Fortinet FortiGate20.4%
Fortinet FortiGate-VM1.9%
SonicWall TZ2.8%
Other74.9%
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.
Samuel-Mottet - PeerSpot reviewer
User-friendly, easy to set up, and works very well for SMB customers
We are using VM01 most of the time, as we have more customers, although sometimes we can use VM02. In the EMEA region, we mainly have customers related to Fortinet FortiGate-VM. My favorite capabilities are VM01 and VM02. We use it in a hybrid cloud solution, meaning the customer on-premise is using another technology or the same. It's better for us if they are using Fortinet, and we don't face issues with this solution. For what we need to do, which is setting up a VPN connection between both sides and using it for SSL VPN connections for remote users, it works effectively and we haven't encountered vulnerabilities. It's user-friendly and easy to set up. It's designed with the customer in mind. As someone who is precise, I understand the importance of selling the solution effectively while ensuring it meets the customer's needs. This means that my focus is on gathering customer feedback. It's not just about what I see; it's about understanding the customer's perspective. Customers often want to know how they can use the solution and how to set it up, which is the main concern I address. Fortinet Security Fabric's Real-time Threat Response capabilities are satisfactory; it's a good solution.
Subhadip Pakrashi - PeerSpot reviewer
Provides reliable performance with strong features and simplicity
SonicWall TZ is user-friendly, admin-friendly, and a beautiful product. I have been selling SonicWall since 2007 without any issues. SonicWall has been working on it excellently. They are up to date, and their research team is good, making the box feature-rich. Based out of India, I have had some issues with their faulty channel policy. It's a very good product, an awesome product for those who want to use SonicWall TZ. You can bet on it, but check out the channel policies in India. They should check out the channels in the channel business. It's just a precaution, nothing more than that. Overall rating: 9 out of 10.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
6%
Computer Software Company
16%
Comms Service Provider
7%
Financial Services Firm
6%
Manufacturing Company
6%
Computer Software Company
15%
Comms Service Provider
9%
Manufacturing Company
7%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business351
Midsize Enterprise130
Large Enterprise187
By reviewers
Company SizeCount
Small Business69
Midsize Enterprise31
Large Enterprise34
By reviewers
Company SizeCount
Small Business61
Midsize Enterprise16
Large Enterprise14
 

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

No data available
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: September 2025.
870,701 professionals have used our research since 2012.