Hillstone A-Series vs Palo Alto Networks K2-Series comparison

Hillstone Networks and Palo Alto Networks are both solutions in the Firewalls category. Hillstone Networks is ranked #47, while Palo Alto Networks is ranked #24 with an average rating of 8.8. Hillstone Networks holds a 0.2% mindshare in Firewalls, compared to Palo Alto Networks’s 0.2% mindshare. Additionally, 100% of Hillstone Networks users are willing to recommend the solution, compared to 96% of Palo Alto Networks users who would recommend it.

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Executive Summary

We performed a comparison between Hillstone A-Series and Palo Alto Networks K2-Series based on real PeerSpot user reviews.

Find out what your peers are saying about Fortinet, Netgate, Sophos and others in Firewalls.

To learn more, read our detailed Firewalls Report (Updated: March 2026).

Buyer's Guide

Firewalls

March 2026

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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

Mindshare comparison

As of April 2026, in the Firewalls category, the mindshare of Fortinet FortiGate is 18.3%, down from 21.1% compared to the previous year. The mindshare of Hillstone A-Series is 0.2%, up from 0.1% compared to the previous year. The mindshare of Palo Alto Networks K2-Series is 0.2%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Firewalls Mindshare Distribution
Product	Mindshare (%)
Fortinet FortiGate	18.3%
Palo Alto Networks K2-Series	0.2%
Hillstone A-Series	0.2%
Other	81.3%

Firewalls

Featured Reviews

Vasu Gala

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.

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Albert-Wang

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.

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reviewer9216065

Sr. Cloud Security Architect at a tech services company with 11-50 employees

Has provided strong traffic visibility and efficient policy management for advanced network environments

Palo Alto Networks K2-Series could be improved, though I don't think of much. I'm unsure how widespread the adoption for K2-Series alone is. Looking at the base Palo Alto capabilities, they are going in the right direction. K2 specifically about its efficacy with all these 5G protocols, the GPRS tunneling protocol performed without many hiccups during testing. With AI, if there is a Precision AI bundle that you're planning on exploring, then that definitely needs a significant uplift because currently it doesn't work for all the known models. There are many false positives that need to be addressed. While it's still ahead of its competitors, on the AI security side, there is quite a room for improvement.

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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 the solution are SD-WAN, filtering testing applications, web filtering, and the new VPN."

"Integrated management would probably be the most valuable feature."

"The most useful functionality of Fortinet FortiGate is the user interface, multiple engines, and their cloud with the latest integrations, and additionally, the Security Fabric tool is very good."

"Fortinet FortiGate brings numerous benefits to my company."

"We have heard that other companies are being attacked, but we are not since we installed FortiGate."

"Fortinet FortiGate is a stable and affordable product."

"The integration with Active Directory is one of the good features, and being able to integrate Active Directory with the firewall is useful."

"The centralized management allowed us to manage 50 devices effectively, which I found better than Cisco."

More Fortinet FortiGate pros

"The antivirus is very good."

"I have found that Palo Alto Networks K2-Series has the best security; they are more user-friendly, older firewalls used to have to be configured using the command-line interface, but in this solution, it can be done in the GUI."

"It's a very good product, simple to use."

"The most valuable features are the virtualization of the firewall and the antivirus."

"I have found that Palo Alto Networks K2-Series has the best security. They are more user-friendly, older firewalls used to have to be configured using the command-line interface, but in this solution, it can be done in the GUI."

"I like the tool's WildFire feature."

"The scalability of the product is quite high."

"K2-Series' best features include its scalability, which is the best on the market, and its continuous development of new technologies and features."

"Overall, this is a very good firewall and I would recommend it."

More Palo Alto Networks K2-Series pros

Cons

"They should add a feature for detailed reporting."

"Its performance can be better. We have had performance issues in the past, but we sometimes tend to find that it is more related to what we do in our network than anything else. It is quite a good product, and there isn't much to improve."

"I want some additional features. For example, I want something to ensure that when we are using Google email or Microsoft email, or Google Workspace, emails can only be accessed on designated machines given to our employees. I would like them to access data from designated machines, not from any machine. It should work for designated mobiles and laptops. I don't know if Fortinet provides something like that out of the box."

"One of the most important areas for improvement for Fortinet FortiGate is the limited resources for tests. I was limited to a few interfaces for one month, and it would be great if Fortinet could improve these features in their test versions."

"Fortinet should improve its software, as we are seeing lots of firmware versions generated for each vulnerability issue. It becomes difficult for us to keep updating the firmware frequently due to bugs."

"Improvement is needed in the Web Filter quotas to restrict users with allocated quotas."

"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."

"The tech support is not excellent; this is where Fortinet saves money compared to others... But plenty of free, clear and public documentation is available and this compensates for the most part the tech support shortcomings."

More Fortinet FortiGate cons

"It would be helpful if they could integrate more with third-party security systems."

"Threat prevention could use improvement. Not just in malware exploits and C2 traffic; enhancing web traffic protection would be a great upgrade."

"The graphical user interface is a little complex and difficult to manage. L1 engineers cannot work on the Palo Alto Networks K2-Series because it's too complex, which requires L2 and above level of engineers."

"The reporting functionality in GlobalProtect needs to be improved."

"The tool needs to improve integration with more products from other vendors. I would like the product to add threat intelligence features as well."

"I'd like to see more data protection on the system."

"In the past, we've had trouble with Palo Alto's application filtering not getting it right. I would not be recommending layer 7 application filtering yet."

"They should lower their prices for small businesses."

"Higher levels of support are excellent but new users may need additional options."

More Palo Alto Networks K2-Series cons

Pricing and Cost Advice

"There is a subscription-based model to use Fortinet FortiGate. We pay annually for the solution along with the support. If you want to have all the updates, and security patches you will need to renew your support."

"The price of FortiGate is good."

"The price of Fortinet FortiGate when compared to other solutions is high. However, my knowledge of the price is from third parties and I am not sure how accurate it is. I typically work in the technical area of my organization."

"Setup cost may be not so low, as you expect, because it depends on different factors, but TCO for 5 years may pleasantly surprise you."

"Fortinet FortiGate as a less expensive solution than Palo Alto."

"I rate FortiGate's pricing a five out of ten."

"My experience with the pricing, setup cost, and licensing for Fortinet FortiGate is quite good. I don't have a public site, such as in Azure, where I can see the pricing. I always have to go through the distributor, and that could take some time to get the real price for each appliance."

"FortiGate Next Generation Firewall costs our company around $12000 per year."

More Fortinet FortiGate pricing and cost advice

Information not available

"We are on an annual license to use Palo Alto Networks K2-Series."

"The price of this solution is too high."

"Pricing is a sensitive issue because the cost is high in this market."

"It is an expensive solution."

"This is an expensive solution, although you will get value for the price."

"When comparing Palo Alto Networks K2-Series with other solutions it is on the higher end of the price scale."

"Products by the leader in the field are justifiably a bit more expensive compared to other vendors."

"If you compare K2-Series' quality with its price, I think it is reasonable."

More Palo Alto Networks K2-Series pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

11%

Comms Service Provider

10%

Manufacturing Company

Financial Services Firm

No data available

Performing Arts

17%

Financial Services Firm

12%

Marketing Services Firm

10%

Construction Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	364
Midsize Enterprise	135
Large Enterprise	191

No data available

By reviewers
Company Size	Count
Small Business	15
Midsize Enterprise	7
Large Enterprise	13

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 a...

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From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...

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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 ...

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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 wel...

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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 deploye...

See all answers

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.

See all answers

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...

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What is your experience regarding pricing and costs for Palo Alto Networks K2-Series?

The pricing for the Palo Alto Networks K2-Series solution is affordable and there are no complaints about the licensing.

See all answers

What needs improvement with Palo Alto Networks K2-Series?

Palo Alto Networks K2-Series could be improved, though I don't think of much. I'm unsure how widespread the adoption ...

See all answers

Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 19% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 13% of the time

Palo Alto Networks NG Firewalls vs Fortinet FortiGate

Compared 4% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 4% of the time

Check Point Quantum Force (NGFW) vs Fortinet FortiGate

Compared 3% of the time

More Fortinet FortiGate Competitors

Hillstone E-Series vs Hillstone A-Series

Compared 31% of the time

Palo Alto Networks NG Firewalls vs Hillstone A-Series

Compared 17% of the time

More Hillstone A-Series Competitors

Juniper SRX Series Firewall vs Palo Alto Networks K2-Series

Compared 26% of the time

Sophos Firewall vs Palo Alto Networks K2-Series

Compared 21% of the time

Cisco Secure Firewall vs Palo Alto Networks K2-Series

Compared 19% of the time

Check Point Quantum Force vs Palo Alto Networks K2-Series

Compared 14% of the time

More Palo Alto Networks K2-Series Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

April 2026

Download Fortinet FortiGate product report

Buyer's Guide

Firewalls

March 2026

Download Hillstone A-Series product report

Buyer's Guide

Palo Alto Networks K2-Series

March 2026

Download Palo Alto Networks K2-Series product report

Also Known As

Fortinet FortiGate Next-Generation Firewall

No data available

Overview

Fortinet FortiGate is a versatile network security tool offering features like VPN, firewall, web filtering, intrusion prevention, and scalability. It is known for its performance and integration with other Fortinet products, making it a preferred choice for robust cybersecurity.

Fortinet FortiGate stands out as a comprehensive cybersecurity solution with strong performance and ease of configuration. It delivers unified threat management, integrating features such as dynamic routing, SD-WAN support, and centralized management. Despite its strengths, improvements in the web interface's stability, pricing structures, and reporting capabilities are needed. Users seek better integration with third-party tools and automation advancements to enhance the experience further. These enhancements, alongside improvements in bandwidth management and the reduction of licensing costs, are points of interest for users looking to capitalize on FortiGate's extensive capabilities.

What are Fortinet FortiGate's key features?

VPN: Ensures secure remote connections.
Firewall: Protects against unauthorized access.
Web Filtering: Blocks malicious sites and content.
Application Control: Manages and controls applications.
Intrusion Prevention: Detects and prevents vulnerabilities.
SSL Inspection: Enhances security by inspecting encrypted traffic.

What benefits should be considered when evaluating Fortinet FortiGate?

Affordability: Offers cost-effective security solutions.
Reliability: Known for consistent and stable performance.
Integration: Seamlessly integrates with other Fortinet products.
Comprehensive Protection: Provides broad threat protection capabilities.

Fortinet FortiGate is widely implemented across industries as a primary firewall system for securing internet gateways and safeguarding data centers. It supports businesses in achieving SD-WAN integration and enhances cybersecurity by providing essential features like antivirus, web filtering, and application control. Enterprises utilize FortiGate for securing remote connections and ensuring compliance with security standards, making it adaptable for different network sizes and industries.

Fortinet

The Hillstone A-Series effectively enhances network security and protects against cyber threats. It is praised for its ability to prevent unauthorized access, detect and block malicious activities, and ensure the overall integrity of network infrastructure. Its stand-out features include advanced threat detection and seamless integration with existing networks.

Hillstone Networks

Designed to handle growing throughput needs due to increasing amounts of application-, user-, and device-generated data, the K2-Series offers amazing performance and threat prevention capabilities to stop advanced cyberattacks and secure mobile network infrastructure, subscribers, and services.

Palo Alto Networks

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

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

State of North Dakota, SEGA, Alameda County Office of Education, Temple University, VERGE, CAME

Find out what your peers are saying about Fortinet, Netgate, Sophos and others in Firewalls. Updated: March 2026.

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