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Fortinet FortiGate vs Zyxel Unified Security Gateway comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 29, 2026

Review summaries and opinions

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

Categories and Ranking

Fortinet FortiGate
Ranking in Unified Threat Management (UTM)
1st
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
595
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Firewalls (1st), Intrusion Detection and Prevention Software (IDPS) (2nd), Software Defined WAN (SD-WAN) Solutions (2nd), WAN Edge (1st), ZTNA (2nd)
Zyxel Unified Security Gateway
Ranking in Unified Threat Management (UTM)
11th
Average Rating
6.6
Reviews Sentiment
4.9
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Unified Threat Management (UTM) category, the mindshare of Fortinet FortiGate is 21.1%, down from 34.0% compared to the previous year. The mindshare of Zyxel Unified Security Gateway is 3.2%, down from 4.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Unified Threat Management (UTM) Mindshare Distribution
ProductMindshare (%)
Fortinet FortiGate21.1%
Zyxel Unified Security Gateway3.2%
Other75.7%
Unified Threat Management (UTM)
 

Featured Reviews

VR
Practice Head at a consultancy with 11-50 employees
Unified security has protected diverse environments and supports consistent policies everywhere
I would say 8 out of 10 regarding the stability of Fortinet FortiGate. It requires a lot of bug fixing and what I understand, Fortinet is fast enough to provide bug fixes and patches, but usually I suggest Fortinet should do thorough testing of their releases and software releases and once probably they can reduce the frequency of new releases but make it stable. That's what my recommendation is. As far as the core objective of Fortinet FortiGate is concerned, I think they are meeting the targets but I guess for rolling out new features and new updates, they are doing a bit of hurry just to cope with the market dynamics. But possibly, I understand that they are compromising on the quality of the software and stability. So over there they have to improve. Rest of the aspects, I guess they are doing pretty good. We are happy. Regarding my experience with Fortinet FortiGate in comparison to maybe some other vendors such as CyberArk, Fortinet is in the top three and they give a lot of competition to their nearest peers in the market. But I guess Fortinet is really struggling in software-defined LAN, Wi-Fi, and FortiSwitches space. So they have to make their products more affordable in Forti-switching and Forti-WiFi space. They are not able to compete effectively with the nearest competitor HP Enterprise and HP Aruba.
reviewer2399337 - PeerSpot reviewer
Sales and technical consultant at a manufacturing company with 10,001+ employees
User has benefited from stable performance and effective completion of security tasks
I use it mostly for VPN and for some firewall solutions When considering my main use case with VPN, I can say that I got the Zyxel Unified Security Gateway, and it works fine. However, we are thinking about using a different solution based on open source because Zyxel Unified Security Gateway…

Quotes from Members

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

Pros

"The system is very easy to scale."
"The most valuable feature is the VDOM, which allows the customer to have multiple firewalls in a single campus."
"The customers have seen an ROI from using Fortinet FortiGate and they are satisfied with the solution."
"The most valuable feature is the SSL VPN, as it allows us to connect and it separates this product from other firewalls."
"The most valuable feature of Fortinet FortiGate SWG is inspection."
"The main reason we chose Fortinet FortiGate was that the price was better than the competition."
"It offers web filtering capabilities at a more affordable price compared to other solutions like PSMs or NETGEAR."
"Customer Service: They're good. Technical Support: They're very good."
"The solution can scale well."
"The cost is very low."
"This is a capable appliance and the standard features work well for us."
"The Zyxel Unified Security Gateway solution is stable and does its job effectively."
"The most valuable features of the solution stem from web filtering, malware protection, and antivirus."
 

Cons

"The UTM filtering needs improvement."
"Technical support needs to be improved."
"The solution could have licensing fees reduced in the future."
"The solution needs to improve its support."
"Need to Improvement in Reporting"
"The central management for the FortiGate Fortinet Firewall needs improvement. They have the manager to do the essential management for both SD-WAN and for the security policy. They should also improve the SD-WAN function."
"There could be more modifications."
"I am looking to implement key authentication for admin access for the Fortinet product."
"Sometimes it reboots when you least expect it, and that's the main issue."
"The integration capability is quite challenging. The system is very complicated, and many features are hidden."
"Although manageable, the user interface is a little bit slow and could be improved. The advanced UI allows me to do whatever I want, but this is where the issue of speed exists."
"I have never seen it in any company that I've worked with before, and I would advise other companies not to buy it."
"The product has some scalability and data management issues where improvements are required."
 

Pricing and Cost Advice

"Fortinet FortiGate has different licensing models, depending on what you're going to do. Services included would depend on the license model. Licenses can be renewed annually."
"The price of Fortinet FortiGate is the lowest in the market."
"It is less expensive than a Cisco solution."
"Pricing for Fortinet FortiGate SWG is more suitable for enterprise or large-sized organizations because they are the ones who can afford it versus small and medium-sized organizations."
"Fortinet costs are 25% lower than the high-cost provider. There is an equipment cost and a recurring monthly cost for licenses and technical support."
"The price is fair compared to the other competitors."
"Fortinet is competitive price-wise."
"There is a license required to use Fortinet FortiGate with all the features. It has to be updated with the threats on an ongoing basis for the signatures to prevent threats and a license is needed to receive those security updates."
"This gateway is pretty cheap."
"The price of Zyxel Unified Security Gateway is good compared to other similar products in the market."
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921,665 professionals have used our research since 2012.
 

Comparison Review

it_user216600 - PeerSpot reviewer
Senior Technical Consultant with 51-200 employees
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…
 

Top Industries

By visitors reading reviews
No data available
Comms Service Provider
19%
Outsourcing Company
9%
Financial Services Firm
9%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business373
Midsize Enterprise139
Large Enterprise195
No data available
 

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 at large. In my opinion, Fortinet would be the best option and l use Fortinet too...
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 the firewalls change every 5 to 7 years as stated but you really do need to upg...
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 good. The most valuable features for me are their web and email filtering. I wou...
What is your experience regarding pricing and costs for Zyxel Unified Security Gateway?
I cannot definitively comment on whether Zyxel Unified Security Gateway is an affordable product as I haven't done comparisons with other solutions. When our license expires, we plan to explore...
What needs improvement with Zyxel Unified Security Gateway?
The integration capability is quite challenging. The system is very complicated, and many features are hidden. I'm looking for something new that is slightly simpler. Regarding user experience,...
What is your primary use case for Zyxel Unified Security Gateway?
I use it mostly for VPN and for some firewall solutions. When considering my main use case with VPN, I can say that I got the Zyxel Unified Security Gateway, and it works fine. However, we are thin...
 

Also Known As

Fortinet FortiGate Next-Generation Firewall
No data available
 

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
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Find out what your peers are saying about Fortinet FortiGate vs. Zyxel Unified Security Gateway and other solutions. Updated: October 2026.
921,665 professionals have used our research since 2012.