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Fortinet FortiOS vs Hillstone A-Series comparison

 

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 FortiOS
Ranking in Firewalls
19th
Average Rating
8.4
Reviews Sentiment
8.0
Number of Reviews
82
Ranking in other categories
No ranking in other categories
Hillstone A-Series
Ranking in Firewalls
49th
Average Rating
0.0
Reviews Sentiment
7.8
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Firewalls category, the mindshare of Fortinet FortiOS is 1.1%, down from 1.1% compared to the previous year. The mindshare of Hillstone A-Series is 0.3%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Fortinet FortiOS1.1%
Hillstone A-Series0.3%
Other98.6%
Firewalls
 

Featured Reviews

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.
Albert-Wang - PeerSpot reviewer
Technical Consultant at SiS Technologies
Good performance, responsive support, and an easy setup
We use the product for small and medium-sized businesses. Their scalability is good. They have a lot of choices based on their performance. Even on one unit, they have multiple ports to support customers so that they can connect to different devices. I'd rate the scalability nine out of ten.

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 are the intrusion prevention system and the anti-virus."
"All networks are security-driven, we get throughputs and security. We feel that the people at Fortinet are easy to deal with from a support standpoint. If they need to jump in and help us, they're very willing to do that. Their email filtering, their data loss prevention, their intrusion prevention, type of products in the newest OSs has been outstanding."
"The solution provides good firewall and antivirus protection."
"You are getting a very good solution with all these features combined into one box."
"It has a lot of scalability abilities which makes it easy to scale."
"It has worked well for us overall, and we are happy with its capabilities."
"Fortinet FortiOS is very easy to use, and when comparing it to other products, its easiness is remarkable."
"We primarily use Fortinet FortiOS for site-to-site VPNs, reporting features, and wireless capabilities. It is well integrated within the Fortinet ecosystem."
"The antivirus is very good."
 

Cons

"The solution could improve the log retention and reports."
"The solution's firmware updates have significant bugs and issues."
"The main challenge with Fortinet FortiOS is integration with third-party solutions. I don't see any other areas for improvement. Nowadays, all products work well for 50-60 percent of needs. We must only fulfill 60-70 percent of client requirements because they don't use 100 percent of product features. Banks and financial sectors might need more security features. I don't work much in banking, but they often use multiple products for different security layers, not just firewalls. They might use various products or APIs for different purposes. In the end, clients use the products that suit their needs."
"The threat time interval lags a little, especially if there's a heavy load on the firewall."
"Technical support could be more qualified and offer a quicker turnaround."
"They need to integrate more with the SD-WAN."
"FortiOS's stability could be better."
"The solution needs improvement with DDoS protection."
"It would be helpful if they could integrate more with third-party security systems."
 

Pricing and Cost Advice

"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 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."
"I am on a two-year contract and I pay annually for Fortinet FortiOS."
"The software costs roughly half what the hardware costs. Overall, the product is expensive."
"The licensing for FortiOS is good, with a security license included when we update the main license."
"The price of Fortinet FortiOS is comparable to other similar solutions on the market. We are on an annual license to use the solution."
"The price of Fortinet FortiOS has been reasonable."
Information not available
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Top Industries

By visitors reading reviews
Construction Company
12%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
7%
No data available
 

Company Size

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

Questions from the Community

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 kind of depends what you value most. PA is good at app control, web filtering a...
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 needs improvement with Fortinet FortiOS?
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 fi...
What is your experience regarding pricing and costs for Hillstone A-Series?
The solution is cheaper than other Western brands. The pricing is reasonable. There are costs for the hardware as well as the license.
What needs improvement with Hillstone A-Series?
It would be helpful if they could integrate more with third-party security systems. Often, a client will have deployed multiple security solutions into their network and the different brands need t...
What is your primary use case for Hillstone A-Series?
We use these devices in the office or in the public cloud environment to protect networks.
 

Overview

 

Sample Customers

Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
1. Google 2. Microsoft 3. Amazon 4. IBM 5. Cisco 6. Oracle 7. Intel 8. HP 9. Dell 10. Apple 11. Facebook 12. Twitter 13. LinkedIn 14. Netflix 15. Adobe 16. Salesforce 17. VMware 18. Samsung 19. Sony 20. Toshiba 21. Panasonic 22. LG 23. Nokia 24. Ericsson 25. Siemens 26. Philips 27. General Electric 28. Honeywell 29. BMW 30. Mercedes-Benz 31. Audi 32. Volkswagen
Find out what your peers are saying about Fortinet, Netgate, Cisco and others in Firewalls. Updated: August 2026.
908,858 professionals have used our research since 2012.