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Fortinet FortiOS vs Zyxel Unified Security Gateway comparison

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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:
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
580
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Firewalls (1st), Intrusion Detection and Prevention Software (IDPS) (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (1st), Unified Threat Management (UTM) (1st)
Fortinet FortiOS
Average Rating
8.4
Reviews Sentiment
8.0
Number of Reviews
82
Ranking in other categories
Firewalls (20th)
Zyxel Unified Security Gateway
Average Rating
6.6
Reviews Sentiment
4.9
Number of Reviews
4
Ranking in other categories
Unified Threat Management (UTM) (13th)
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
Manager, Information Technology Operation/Presales at TechMonarch
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.
MS
Associate Director IT Operations at Procento
Single-pane management has simplified firewall control and has improved risk mitigation
I would not say that Fortinet FortiOS is not very scalable. Generally, what happens is that for enterprises, we hire consultants who do the capacity planning and sizing to determine what kind of firewalls to put in place. At the same time, it is not only the number of users; it also depends on the number of WAN links coming in and everything, because we have been using Fortinet for bandwidth shaping and many other bandwidth-related functions. They should improve their machine learning AI capabilities of Fortinet FortiOS because there is too much competition. Other players are also improving and making a lot of changes in their UI and overall operating system.
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 best feature of Fortinet FortiGate is its SD-WAN capability, which is included and differs from other products that require an additional license."
"The license management is very valuable. You can get a new license each year, or you can enroll every two to four years. You can get the logs, and you will get the information on the risk in your network and the entire organization. With this information, you can take action on your actives, computers, or devices. You can bring your own device as an SSE."
"Fortinet FortiGate is quite popular in my region, so we are implementing Fortinet FortiGate firewalls. Fortinet FortiGate is the best option on the market when it comes to firewalls. It's straightforward to deploy and has good stability and performance."
"It has a valuable SD-WAN feature and provides good performance."
"The reporting you receive out of this appliance is excellent. You will not need an external management system."
"It offers web filtering capabilities at a more affordable price compared to other solutions like PSMs or NETGEAR."
"The strengths of Fortinet FortiGate include network security, VPN, site-to-site tunnels, client VPN solutions, two-factor authentication for VPN clients, and SD-WAN for branch level. We have implemented these solutions for various customers."
"It is user friendly, and has all the features you need."
"FortiOS allows us to set up alarms for blocked websites and SSL verifications. When someone tries to access a blocked site, the solution sends a notification to the IT manager's mailbox."
"I like that the firewall gives me a lot of control in terms of outgoing and inbound traffic, and it scores better in deep packet inspections when compared with the Azure Firewall."
"Overall, I rate FortiOS a nine out of ten."
"It has a lot of scalability abilities which makes it easy to scale."
"The information security features are the most valuable."
"The solution is very user friendly."
"I find filtering traffic, filtering web traffic, session traffic, and managing the network as valuable features."
"The interface is good."
"This is a capable appliance and the standard features work well for us."
"The most valuable features of the solution stem from web filtering, malware protection, and antivirus."
"The Zyxel Unified Security Gateway solution is stable and does its job effectively."
"The solution can scale well."
 

Cons

"The solution's GUI is not very appealing."
"I believe one area that could be improved in Fortinet FortiGate is posturing, specifically for remote VPN users, as there are OS-based limitations I encountered with only Windows; adding domain restrictions for VPN access would make it more competitive and useful."
"It is complicated to manage different kinds of on-premise boxes."
"In terms of pricing, Fortinet needs to do more to compete effectively."
"Technical support is good but the response time could be faster."
"Fortinet technical support is lacking, as OEM support is slightly better. Improvement in their technical support could include response time as well as having more technically sound people in tech support."
"FortiGate's reporting features could provide a better picture of what is happening in the box."
"In most cases, the IPS engine uses too many resources, which makes Fortinet FortiGate devices unstable."
"The pricing of the product is too high."
"There is room for improvement in the reporting part. The reporting is only for logging data, and it's just a tabulation of the log in the report. I would like to be able to take down more information in the event of an incident."
"Their first-level support is often poorly trained."
"FortiOS doesn't work well with all browsers. I think they need to do a better job of making it compatible with the various browsers that are out there."
"Could be improved by supporting an allocation of quota base management regarding user data."
"I believe there could be improvements in the Fortinet FortiOS operation system, such as better integration and a more centralized dashboard."
"The reporting for this solution could be improved. It could also be more stable and offer better pricing."
"In the future I would like to see more user-friendly dashboards and a drop in the price."
"Although manageable, the user interface is a little bit slow and could be improved."
"The product has some scalability and data management issues where improvements are required."
"Sometimes it reboots when you least expect it, and that's the main issue."
 

Pricing and Cost Advice

"I'll rate FortiGate's pricing a five out of ten since it is moderately priced."
"I had to pay for the license for the firewall, but it is guaranteed to have updates. I expect a good service for it. It was about €1000 for a year, and there was no additional cost."
"It is an expensive solution."
"The licensing costs are very competitive."
"Fortinet is the least expensive solution."
"Pricing and licensing is a little bit complicated in FortiGate. They are always on the higher side. This is one issue that we always raise with the company that they should reduce the price according to Indian market requirements. There are no costs in addition to the standard licensing fees."
"The Indian market is different than the European and American markets. When you compare they need to be a bit more aggressive on pricing."
"It is affordable. Palo Alto is much more expensive than Fortinet."
"A yearly subscription might be around $20,000 to $30,000."
"The support contracts are usually about $100 - $200 a device."
"It is not cheap."
"A medium 100 or 200 Series box costs around $3000, and the software cost is around 55% of the hardware cost."
"FortiOS is affordable, but its price could be lower."
"The price of Fortinet FortiOS is less than $10,000 annually. The price of the support is reasonable compared to competitors."
"The licensing for FortiOS is good, with a security license included when we update the main license."
"We had a three-year license to use Fortinet FortiOS and we are going to renew it this year."
"The price of Zyxel Unified Security Gateway is good compared to other similar products in the market."
"This gateway is pretty cheap."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
6%
Computer Software Company
11%
Manufacturing Company
10%
Financial Services Firm
9%
Government
7%
Comms Service Provider
23%
Computer Software Company
11%
Outsourcing Company
8%
Wholesaler/Distributor
4%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business357
Midsize Enterprise133
Large Enterprise188
By reviewers
Company SizeCount
Small Business43
Midsize Enterprise13
Large Enterprise23
No data available
 

Questions from the Community

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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.
What do you like most about Zyxel Unified Security Gateway?
The most valuable features of the solution stem from web filtering, malware protection, and antivirus.
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 co...
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 lo...
 

Also Known As

Fortinet FortiGate Next-Generation Firewall
No data available
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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
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Find out what your peers are saying about Fortinet FortiOS vs. Zyxel Unified Security Gateway and other solutions. Updated: December 2025.
881,114 professionals have used our research since 2012.