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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
574
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 (2nd), Unified Threat Management (UTM) (1st)
Fortinet FortiOS
Average Rating
8.4
Reviews Sentiment
8.0
Number of Reviews
81
Ranking in other categories
Firewalls (21st)
Zyxel Unified Security Gateway
Average Rating
6.6
Reviews Sentiment
4.9
Number of Reviews
4
Ranking in other categories
Unified Threat Management (UTM) (14th)
 

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.
Alexander Azikov - PeerSpot reviewer
A robust appliance that is reasonably priced and straightforward to set up
Although manageable, the user interface is a little bit slow and could be improved. There are two user interface options available, namely the basic and the advanced. The basic UI is not very good and doesn't have a lot of features, although it is fast. The advanced UI allows me to do whatever I want, but this is where the issue of speed exists. At one of our sites, the CPU utilization was very high, and for no reason. Technical support needs to be more responsive to requests.

Quotes from Members

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

Pros

"The most valuable features of Fortinet FortiGate are it is one of the most mature firewalls in the UTM bundle."
"The management console is pretty simple, so anyone who understands networking can initially deploy the solution."
"The solution is used in my company since its management is very comfortable"
"The user interface is relatively easy. The devices are easy to deploy and figure out when you have experience with other security appliances."
"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."
"Fortinet FortiGate has many functions, and it is one of the best next-generation firewalls with an affordable cost than other vendors."
"I appreciate the ease of use, ease of setup, and the different abilities it has; I have been very pleased with it over SonicWall, the interface of Fortinet FortiGate is a lot easier to use and more robust, plus their VPN option is much better."
"Overall, I would rate Fortinet FortiGate a ten out of ten."
"The information security features are the most valuable."
"Performance-wise, I think FortiOS is much better than its Juniper counterpart. Based on our actual experience and performance metrics, FortiOS-based products are much better than Juniper."
"Overall, I would rate FortiOS at least a nine out of ten."
"The solution is extremely scalable."
"The interface is easy to understand, so when there are threats you get alerts. It's quite intuitive, but if you are ever confused they have instructional videos. For example, if you don't understand a graph there's a link to a video that explains what the graph means. It makes it very user-friendly."
"We found the initial setup to be straightforward."
"In my opinion, Fortinet FortiOS provides significant benefits to users, such as saving time, saving money, and streamlining workflow processes."
"What I like about this solution, is that it is the only solution that currently offers VPN for clients."
"The most valuable features of the solution stem from web filtering, malware protection, and antivirus."
"This is a capable appliance and the standard features work well for us."
"The solution can scale well."
 

Cons

"The process of configuring firewall rules appears excessively complex."
"Technical support is good but the response time could be faster."
"Like any hardware, it has finite scalability restrictions."
"Backup can be improved."
"I believe there is room for improvement in machine learning and AI in Fortinet FortiGate."
"There is a need for enhancement with the signature management, improving the datasheet numbers, and scalability issues."
"The interface and product support could use improvement."
"In the balance between links feature normally you can just choose one option to balance. It would be better for the solution to have more than one option, preferably three."
"Fortinet FortiOS's integration could be improved."
"There is some room for improvement in the support."
"Right now, all the features meet my requirements."
"Compared to other market leaders like Palo Alto and Check Point, FortiOS has many bugs in its initial releases."
"In the future I would like to see more user-friendly dashboards and a drop in the price."
"Compared to other market leaders like Palo Alto and Check Point, FortiOS has many bugs in its initial releases."
"FortiOS's bandwidth and interface could be improved."
"It should also manage the local DSCP network."
"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 think that the pricing is fair."
"Fortinet Secure SD-WAN delivered the lowest total cost of ownership (TCO) per Mbps among all other vendors."
"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 of Fortinet FortiGate is the lowest in the market."
"In terms of the market, it's not a cheap product, but it's cost-effective."
"Its price could be better."
"It was pretty affordable. We did go a little bit above MSRP, but the service pack that was included was quite worth the additional costs. It is competitively priced compared to other major players in the market. It is significantly cheaper than Check Point, which is a primary competitor. Additionally, its pricing is comparable to that of Cisco's ASA and a few other vendors."
"FortiGate's pricing falls within the mid-range when compared to other leading firewall solutions."
"The Fortinet solutions can be a bit expensive."
"The scalability of Fortinet FortiOS is good. However, central management is intuitive for the end-users. We had a lot of questions about central management, and sometimes they didn't use it and did their firewall management directly on FortiGate instead of using Fortinet FortiOS."
"The solution is cost effective. I would rate the pricing a five out of ten."
"FortiOS is affordable, but its price could be lower."
"The solution is quite affordable and I rate the cost a four out of ten."
"Pricing for the tool can vary. Sometimes, aggressive pricing is offered at the start, but later, as subscriptions and expansions are needed, the costs can increase, and customers may have to pay whatever is required."
"We had a three-year license to use Fortinet FortiOS and we are going to renew it this year."
"It would be better if it were cheaper. We have the firewall in our office, and the license is expiring in 20 to 25 days. We got a quote for almost 80,000 Pakistani Rupees, which is a little costly."
"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
15%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
6%
Computer Software Company
13%
Manufacturing Company
10%
Financial Services Firm
8%
Government
7%
Comms Service Provider
22%
Computer Software Company
15%
Outsourcing Company
7%
Non Profit
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
No data available
 

Questions from the Community

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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.
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...
 

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: September 2025.
872,098 professionals have used our research since 2012.