Hillstone E-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 #38 with an average rating of 8.0, while Palo Alto Networks is ranked #25 with an average rating of 8.6. Hillstone Networks holds a 0.6% mindshare in Firewalls, compared to Palo Alto Networks’s 0.4% 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.

Comparison Buyer's Guide

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Executive SummaryUpdated on Sep 16, 2024

The Hillstone E-Series and Palo Alto Networks K2-Series both offer robust network security solutions. While Hillstone E-Series receives positive marks for its pricing and customer support, Palo Alto Networks K2-Series justifies its higher price with superior performance.

Features: Hillstone E-Series is praised for its high throughput, intuitive management system, and excellent malware detection. Palo Alto Networks K2-Series stands out for its advanced threat prevention, next-generation firewall capabilities, and detailed analytics. The main difference is the high level of innovation and cutting-edge technology present in the K2-Series.

Room for Improvement: Hillstone E-Series users suggest improvements in scalability options and integration with third-party tools. Palo Alto Networks K2-Series users identify a need for better pricing models and a reduction in complexity. Notably, Hillstone could enhance its feature set, while Palo Alto Networks could benefit from cost adjustments and simplified operations.

Ease of Deployment and Customer Service: Hillstone E-Series is appreciated for its straightforward deployment process and responsive customer support. In contrast, Palo Alto Networks K2-Series, while more complex to configure, benefits from extensive documentation and professional service assistance. E-Series excels in deployment simplicity, whereas K2-Series provides comprehensive support.

Pricing and ROI: Hillstone E-Series offers competitive pricing with quicker ROI owing to lower initial costs. Palo Alto Networks K2-Series demands a higher initial investment but delivers substantial ROI through its advanced features and long-term security benefits. Users highlight the E-Series for its cost-effectiveness, but recognize the K2-Series as a worthwhile investment for comprehensive security.

To learn more, read our detailed Hillstone E-Series vs. Palo Alto Networks K2-Series Report (Updated: April 2026).

Buyer's Guide

Hillstone E-Series vs. Palo Alto Networks K2-Series

April 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 May 2026, in the Firewalls category, the mindshare of Fortinet FortiGate is 16.0%, down from 21.6% compared to the previous year. The mindshare of Hillstone E-Series is 0.6%, up from 0.3% compared to the previous year. The mindshare of Palo Alto Networks K2-Series is 0.4%, 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	16.0%
Palo Alto Networks K2-Series	0.4%
Hillstone E-Series	0.6%
Other	83.0%

Firewalls

Featured Reviews

Abhinandan Yadav

Network Security Engineer at a consultancy with 51-200 employees

Unified security and sd-wan have improved uptime and cut wan costs for multi-site branches

Users report stability issues in certain versions, which requires regular updates. Real-world attacks have also highlighted the need for urgent patching of vulnerabilities.Fortinet FortiGate, while a powerful and feature-rich web firewall, could improve in areas like firmware stability, documentation, and ease of use. The learning curve can be steep for some users. For beginners, support quality can vary, and frequent updates with occasional vulnerabilities call for careful patch management. However, once Fortinet FortiGate is configured, it remains highly reliable and efficient. Customer support needs improvement, as I find it very slow, with reports from other users reflecting that customer support is inadequate.

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TahirMahmood

IT Manager at Zubair Feeds

Offers good features like URL filtering, IPS, and IDS to users

We received an update for the tool in July. The update was provided for the tool as there was a problem with the firewall, where too much memory was consumed, and the firewall was hanging a lot. When we updated the tool's features, everything became okay. The tool only had some memory-related problems. It took the tool a month to fix the issues.

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reviewer2764818

Principle Cloud 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.

Read full review

Quotes from Members

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

Pros

"What I like the most is the configuration and that it's simple, and straightforward to maintain."

"The firewalls are valuable for threat prevention."

"The reporting and monitoring are very good."

"The most valuable features of Fortinet FortiGate SWG are IPS and scanning."

"FortiGate Next Generation Firewall can be described as the most complete solution."

"The customers have seen an ROI from using Fortinet FortiGate and they are satisfied with the solution."

"The price-to-performance ratio for using Fortinet FortiGate is always better compared to any other competitor, so they are rated better than the likes of Check Point or Palo Alto."

"Fortinet has got great firewalls; they do everything, from FortiTokens for two-factor to IPsec VPNs and SSL VPNs, with a great GUI that makes it easy to use while the support is great."

More Fortinet FortiGate pros

"The installation is easy, we have not had any complaints from our customers."

"The most valuable feature of the Hillstone E-Series is its user-friendliness."

"I am impressed with the application filtering feature."

"Stability-wise, I rate the solution a ten out of ten."

"The most valuable feature of the solution is the ransomware protection that the tool offers."

"The most valuable features of the Hillstone E-Series are its hardware capacity, innovation, and the throughput that the hardware can take."

"Working with the Hillstone E-Series has, from a remote perspective, allowed me to give my clients a secure connectivity."

"The installation is easy, we have not had any complaints from our customers."

More Hillstone E-Series pros

"Palo Alto's App-ID is what differentiates it from other competitors."

"As long as the solution is kept updated, it's pretty stable."

"Everything I could possibly want has already been implanted in the new version."

"This is a very reliable firewall and we have never had problems with it."

"I would say Palo Alto, overall, has a better, more reliable product line."

"The company is inventive and always adds a lot of great features."

"The thing I like the most about Palo Alto is that the IPS system is the strongest you can get."

"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."

More Palo Alto Networks K2-Series pros

Cons

"The way everything is set up could be easier. Currently, people need a lot of experience and knowledge to administer it and to link it to devices."

"I would like to see a more intuitive dashboard."

"The solution needs to improve its support."

"Reporting is limited to providing an external appliance for improving the reporting capabilities of the FortiAnalyzer. It does not offer a central management and is also sold separably as an appliance."

"One area for improvement is the performance on the bandwidth demands for smaller devices, as well as better web filtering."

"They sometimes hide some features and if you want to enable them, you have to go in the CLI, enable the feature and configure it through the CLI. Customers, typically, like everything to be done by the GUI."

"FortiGate may include AI capabilities and integrate external threat intelligence. However, version management and backup/restore operations could be improved."

"The product has to be upgraded every few weeks."

More Fortinet FortiGate cons

"The current usage reporting is very basic."

"The tool provides just a general report. It does not provide a granular report. Hence, the tool should work on its reporting feature."

"The licensing model is very complex with many subcategories of licenses you can purchase. They could make it more simplified for customers to understand."

"Having frequent live webinars on a monthly basis would really help."

"SSL VPN license cost is not cheap."

"I am not sure if this solution offers active directory integration. Adding that feature will definitely be an advantage."

"The room for improvement would be the SSL VPN license cost."

"The tool only had some memory-related problems."

More Hillstone E-Series cons

"They could improve by providing more features in the solution."

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

"It is recommended that the Palo Alto Networks K2-Series be implemented step by step for the Panorama. Sometimes we can't overwrite the configurations because it fails."

"The scalability of Palo Alto Networks K2-Series is good. It is good for larger environments over smaller ones."

"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."

"Palo Alto releases a lot of bug fixes for their firewalls, which means it's necessary to do frequent upgrades."

"The scalability for on-premises version is limited as it depends on the model."

More Palo Alto Networks K2-Series cons

Pricing and Cost Advice

"Its price is reasonable. They have a clear pricing policy. It is not complicated by the number of VPN users at a time. We know what the price is. The yearly subscription for the security license is rather high, but it is all included for whatever number of users you have and the kind of functions you need."

"Fortinet FortiGate gives you most of the features in one license."

"FortiGate's pricing falls within the mid-range when compared to other leading firewall solutions."

"If you compare Fortinet FortiGate with Sophos and other firewall products available in the market, this solution is affordable."

"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."

"We pay for the license of Fortinet FortiGate IPS annually. There are not any extra costs."

"Pricing for this product is comparatively lower than other products. It's an affordable solution, but when expanding the number of users, they'll ask you to replace the model, so that's an added cost."

"Pricing for Fortinet FortiGate SWG is more suitable for enterprise or large-sized organizations because they are the ones who can afford it versus small and medium-sized organizations."

More Fortinet FortiGate pricing and cost advice

"The tool's pricing is reasonable. It depends on the model. The product's pricing is around 600 USD. You need to buy a software license to activate the features. You need to pay around 150 USD for that."

"Hillstone's pricing is economical and neither very high nor very low."

"The licensing model is very complex with many subcategories of licenses you can purchase. They could make it more simplified for customers to understand."

"The cost per year for licensing, and hardware, is approximately $850 for the basic plan."

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

"The price of the solution is expensive."

"It is an expensive solution."

"This product is designed for large companies. The price would not be suitable for a small or medium size company."

"The pricing is expensive."

"The price of this solution is too high."

"Palo Alto firewalls are very expensive."

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

More Palo Alto Networks K2-Series pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

10%

Comms Service Provider

10%

Manufacturing Company

Financial Services Firm

Comms Service Provider

13%

Construction Company

12%

Financial Services Firm

10%

Manufacturing Company

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	367
Midsize Enterprise	135
Large Enterprise	193

By reviewers
Company Size	Count
Small Business	9
Midsize Enterprise	1

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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What is the biggest difference between Sophos XG and FortiGate?

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 needs improvement with Hillstone E-Series?

We received an update for the tool in July. The update was provided for the tool as there was a problem with the fire...

See all answers

What is your primary use case for Hillstone E-Series?

I use the solution in my company for site-to-site VPN, SSL VPNs, URL filtering, IPS, IDS and all the other features w...

See all answers

What advice do you have for others considering Hillstone E-Series?

Our company did not use the tool's micro-segmentation features. There were no issues while integrating the tool. I ha...

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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...

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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

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Compared 17% of the time

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Compared 13% of the time

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Compared 5% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 3% of the time

Check Point Quantum Force (NGFW) vs Fortinet FortiGate

Compared 3% of the time

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OpenVPN Access Server vs Hillstone E-Series

Compared 15% of the time

Sangfor SSL VPN vs Hillstone E-Series

Compared 8% of the time

Sophos Firewall vs Hillstone E-Series

Compared 7% of the time

Hillstone A-Series vs Hillstone E-Series

Compared 7% of the time

Cisco IOS SSL VPN vs Hillstone E-Series

Compared 7% of the time

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Juniper SRX Series Firewall vs Palo Alto Networks K2-Series

Compared 25% of the time

Cisco Secure Firewall vs Palo Alto Networks K2-Series

Compared 20% of the time

Sophos Firewall vs Palo Alto Networks K2-Series

Compared 15% 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

May 2026

Download Fortinet FortiGate product report

Buyer's Guide

Firewalls

April 2026

Download Hillstone E-Series product report

Buyer's Guide

Palo Alto Networks K2-Series

May 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

Hillstone E-Series is known for user-friendliness and advanced security features, offering high-performance threat protection with virtual switching and routing to support significant data volumes without third-party hardware. It provides top-notch firewall capabilities tailored to educational and energy sectors.

Hillstone E-Series delivers comprehensive network security with threat intelligence, ransomware protection, and state-of-the-art hardware innovation. Its 64-bit call processor facilitates handling large data volumes efficiently. Capabilities such as SSL VPN, integrated IPS, and application filtering make it a valuable choice for network protection. While further integration with a web proxy and enhanced usage reporting can enhance its offerings, enhancements in pricing models, support systems, and updates align with evolving user expectations for improved regional support and detailed analytics.

What are the standout features of Hillstone E-Series?

User-Friendliness: Intuitive setup and management for all users.
Threat Intelligence: Advanced protection against modern cyber threats.
Ransomware Protection: Strong defenses to mitigate ransomware attacks.
Hardware Innovation: Virtual switching/routing for seamless operations.
64-Bit Call Processor: Efficient performance with high data volumes.

What benefits should users expect when evaluating Hillstone E-Series?

Comprehensive Capability: Addresses complex network security needs.
Impressive Throughput: Maintains high performance under load.
Easy Policy Management: Simplifies network security rule application.
Robust Security Features: Offers extensive filtering and blocking options.

The Hillstone E-Series is implemented extensively across industries like educational institutions and energy companies to safeguard local networks against gateway-level threats. Many organizations benefit from features such as antivirus, integrated IPS, site-to-site VPN, SSL VPN, and policy management, enhancing remote work security and simplifying network management tasks.

Hillstone Networks

Palo Alto Networks K2-Series offers deep inspection, scalability, stability, and advanced security technology with easy configuration. Appreciated for its virtualization and strong DNS security, it provides a robust solution for diverse industries seeking comprehensive protection.

Palo Alto Networks K2-Series is recognized for its powerful capabilities in threat detection and prevention. Its features include WildFire, intuitive interface, and granular controls. The system supports strong IPS and SSL decryption while offering easy management and visibility solutions. Zero Trust segmentation and App-ID form the backbone of its advanced threat prevention strategy. While the initial setup is user-friendly, Panorama enhances management ease. Criticism mainly revolves around high costs, a complex interface, and desires for better third-party integration and automation. Continuous updates are required to address bugs, and there's room for improvement in reporting and threat intelligence to better user experience. Scalability and addition of certain competitive features are other areas needing enhancement.

What Are the Key Features of Palo Alto Networks K2-Series?

Deep Inspection: Offers comprehensive scanning for threats.
Scalability and Stability: Ensures reliability across large networks.
Advanced Technology: Incorporates state-of-the-art security methods.
Virtualization: Provides virtual environment support.
Strong DNS Security: Protects against DNS-based threats.
WildFire: Enhances threat detection capabilities.
Intuitive Interface: Simplifies administration and management.
Granular Controls: Allows detailed policy configurations.
Powerful IPS: Effective intrusion prevention mechanism.
SSL Decryption: Manages encrypted traffic without compromising security.

What Benefits and ROI Should Users Consider?

Improved Security: Offers robust protection for network environments.
Reduced Management Complexity: Simplifies system oversight through intuitive tools.
Comprehensive Threat Intelligence: Delivers timely updates to counteract evolving threats.
Integration Capabilities: Seamlessly links with existing Palo Alto products.

Organizations across banking, telecom, and educational sectors frequently deploy Palo Alto Networks K2-Series for its next-generation firewall capabilities, securing perimeter and data center operations. It is integrated with other Palo Alto solutions, serving as a versatile defense mechanism, enabling secure web and internet connectivity.

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

Bank of China Macao, Instituto Tecnológico Bolivariano, Ministry of Labor in San Salvador, FEDCO

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

Buyer's Guide

Hillstone E-Series vs. Palo Alto Networks K2-Series

April 2026

Free Report: Hillstone E-Series vs. Palo Alto Networks K2-Series

Find out what your peers are saying about Hillstone E-Series vs. Palo Alto Networks K2-Series and other solutions. Updated: April 2026.

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