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Fortinet FortiOS vs Hillstone T-Series comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

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
Ranking in Firewalls
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
580
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 (1st), Unified Threat Management (UTM) (1st)
Fortinet FortiOS
Ranking in Firewalls
20th
Average Rating
8.4
Reviews Sentiment
8.0
Number of Reviews
82
Ranking in other categories
No ranking in other categories
Hillstone T-Series
Ranking in Firewalls
42nd
Average Rating
7.4
Number of Reviews
3
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Firewalls category, the mindshare of Fortinet FortiGate is 18.8%, down from 20.7% compared to the previous year. The mindshare of Fortinet FortiOS is 1.1%, up from 0.9% compared to the previous year. The mindshare of Hillstone T-Series is 0.2%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Market Share Distribution
ProductMarket Share (%)
Fortinet FortiGate18.8%
Fortinet FortiOS1.1%
Hillstone T-Series0.2%
Other79.9%
Firewalls
 

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.
TahirMahmood - PeerSpot reviewer
IT Manager at Zubair Feeds
Is stable and has a user-friendly dashboard and a good interface
We installed Hillstone T-Series after a ransomware attack. The dashboard and user interface are very good We cannot secure a specific IP class with this firewall. Another loophole with Hillstone T-Series is that when we connect through WiFi and turn our hot spot on, all who connect through the…

Quotes from Members

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

Pros

"It is user friendly, and has all the features you need."
"FortiGate's web and URL filtering are unlike any other firewall I've used. The functionality of URL filtering in those solutions is problematic because everything is encrypted, and firewalls can't break that encryption protocol. Fortinet has an SSL proxy, so the encryption is done before the packet ever leaves the FortiGate. The URL filter is definitely one of the most helpful features."
"Fortinet FortiGate is among the best firewall solutions, having a significant market share in Egypt."
"The product is user-friendly and not complex."
"The initial setup is easy."
"The solution is highly scalable because they have devices that can handle a large amount of traffic."
"It's very easy to configure."
"The SD-WAN feature of Fortinet FortiGate has been most impactful in maintaining our network's integrity."
"As an end user, I was pretty much satisfied with Fortinet FortiOS 40F; there were no lags, no issues, and no hanging of the firewall, and once configured, unless any policy change is required, it works in such a way that you can just forget about it after configuring it because it is that smooth, robust, and sturdy."
"I have found the most valuable features to be the policies, cache, and the SD-WAN."
"The solution provides good firewall and antivirus protection."
"Fortinet FortiOS is very easy to use, and when comparing it to other products, its easiness is remarkable."
"I am satisfied with Fortinet FortiOS. It's a cool product and has a lot of UTM features. It has application control, web filtering, antivirus, IPS/IDS, DNS filtering, and many things in that firewall. It also has a web application firewall WAF feature. On the feature side, it's a good firewall."
"The most valuable features of Fortinet FortiOS are its simplicity, highly user-centric, and performs well. The line speed and for heavy traffic, is helpful for us."
"I find filtering traffic, filtering web traffic, session traffic, and managing the network as valuable features."
"The classification of the websites is helpful."
"The only firewall able to monitor traffic from a CCTV network. Can detect unauthorized devices plugged into the network, which standard firewalls can't do."
"It has been stable so far."
"We installed Hillstone T-Series after a ransomware attack. The dashboard and user interface are very good."
 

Cons

"The non-error conserve mode has room for improvement."
"The solution lacks sufficient filtering."
"During a recent upgrade from old devices to the latest ones, corporate IT faced challenges as there was no straightforward migration process, requiring many manual steps."
"Security level could be increased."
"Fortinet needs more memory to save the log files. We need it to save the logs on the hardware and not in the cloud. I know this feature is available in FortiCloud, but if we need this log locally, it is not available."
"I find the management console not very straightforward, so that's an area where Fortinet FortiGate can improve. They should simplify it and make it more user-friendly."
"It would be a benefit if Fortinet would release a one-stop solution that is better integrated with other products and an automated emergency response system."
"What could be improved in Fortinet FortiGate SWG is its pricing because it's a bit higher. If it's cheaper, my company could pitch it to customers and engage with customers better about it. What I'd like to see in the next release of Fortinet FortiGate SWG is an improvement in its dashboard or GUI. I'd like it to be more user-friendly."
"There are some features for FortiGate using FortiOS that can only be enabled via a command line. These aren't very advanced features they have been part of FortiOS for quite some time but they still aren't accessible from the graphical user interface. It makes it a little bit harder than it should be for us to manage the solution. That's my main concern with the user interface. Another concern we have is some elements for the user interface, if they're not properly configured, it could lead to hardware and performance degradation."
"Fortinet needs to make this solution even more robust. Sometimes when we get a DDoS attack, the cannot withstand it. We can run out of sessions very easily. That said, I suppose if you want more a robust system, then you could purchase higher-end solutions, which are more expensive. Still, I would like to see more protection from even in the low-end version."
"The complexity of the VPNs should be improved."
"The support is not very good, but the product is stable so it is not so much of a problem."
"In some specific products, Fortinet FortiOS faces memory issues, which can lead to unexpected downtimes."
"For me, it is important to be able to block VPN applications, like Facebook, so I would like to see that included in the next release. With this version, if you want to block or allow a site, you now have to drag all the domains related to this site."
"The threat time interval lags a little, especially if there's a heavy load on the firewall."
"There are some issues with the performance. We also had some issues while updating the firmware."
"Licensing is not cheap."
"Another loophole with Hillstone T-Series is that when we connect through WiFi and turn our hot spot on, all who connect through the hotspot get all the functions, and the security does not work."
"They have a very good technical support team, but I think there are some communication issues due to language differences."
 

Pricing and Cost Advice

"The solution is more expensive than Sophos. It could be cheaper. The licensing is on a yearly basis. We have had it for about three years. We must only pay extra for the license, additional requirements, and the hardware box."
"The pricing of the solution is very competitive."
"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."
"When I look around at other products, such as Sophos, Fortinet FortiGate is 20% to 30% more expensive with our current cost."
"The product pricing is reasonable."
"For the performance that we get, the price is reasonable. There are cheaper options, but they may not deliver the same kind of performance that we want. For the performance they provide, the price is acceptable."
"I think price-wise, the solution is totally reasonable since it has many products to serve, starting from small homes to massive scale sites."
"It is around $50,000 per month."
"The solution is cost effective. I would rate the pricing a five 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."
"The Fortinet solutions can be a bit expensive."
"We pay $100,000. That covers the cost of the hardware that we run the VN's on. That also includes any SGNA costs for the internal support tech."
"FortiOS is affordable, but its price could be lower."
"Pricing depends on implementation and licensing choices and is usually not a practical budget choice for small businesses."
"It is not cheap."
"The licensing for FortiOS is good, with a security license included when we update the main license."
"We got a much cheaper price than that provided by Fortinet right now."
"On a scale from one to ten, with one being low and ten being high price, I would rate the price of Hillstone T-Series at three. There are no additional costs other than renewal costs."
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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%
No data available
 

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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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.
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Also Known As

Fortinet FortiGate Next-Generation Firewall
No data available
Hillstone T-Series Intelligent Next-Generation Firewalls, Hillstone iNGFW
 

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
University of Córdoba
Find out what your peers are saying about Fortinet FortiOS vs. Hillstone T-Series and other solutions. Updated: December 2025.
881,114 professionals have used our research since 2012.