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

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

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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 June 2026, in the Firewalls category, the mindshare of Fortinet FortiGate is 15.1%, down from 21.7% compared to the previous year. The mindshare of Hillstone E-Series is 0.7%, 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	15.1%
Palo Alto Networks K2-Series	0.4%
Hillstone E-Series	0.7%
Other	83.8%

Firewalls

Featured Reviews

Joseph Koomson

IP Network Security Specialist at MTN Ghana

Process-Level CPU Visibility: Introduce detailed CPU-usage metrics per subsystem (e.g., IPS engine, logging) so administrators can quickly identify and address performance spikes.

Analytics with FortiAnalyzer. Being able to pull in logs not just from our FortiGates but from all our other firewalls and then get them in one view has been a game changer. Whether I’m building an executive dashboard or doing a deep dive forensics session, I get everything I need without navigating consoles.Straightforward Application Control. FortiGate spots and blocks unwanted apps (eq. like BitTorrent or streaming services) with accuracy. Segmentation with VDOMs. We’ve carved our data center into four logical ‘mini-firewalls’ enterprise, core, billing, and WAF—all on one box. Each has its own rules and logs, and any traffic between them still gets inspected. It’s like having multiple appliances without the extra hardware. Always-Up-to-Date Threat Feeds. Daily signature updates and AI-driven threat sensing mean we’re blocking the latest vulnerabilities almost as soon as they’re announced.

Read full review

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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Tejas Jain

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.

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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

"Since deploying FortiGate 3401E clusters, we have observed: Dramatic Reduction in Risk Exposure—blocked peer-to-peer and unauthorized applications (e.g., BitTorrent) at the perimeter and east-west segments, eliminating a major source of malware and bandwidth abuse."

"The application control features, such as Facebook blocking and Spotify blocking, are the most valuable."

"Using this product makes the VPN seamless and almost invisible to me in the sense that I don't have to think about it."

"The security on offer is very good."

"From the security point of view, it works, and it does its job."

"The value is the capability of having multiple services with one unique license, not having the limitation per user licensing schema, like other vendors."

"Some of the best features of Fortinet FortiGate include the next-generation firewall features."

"If you are looking for a lifestyle solution, then FortiGate is my choice."

More Fortinet FortiGate pros

"If an organization is not looking for a web proxy, it's a very, very good product."

"I am impressed with the application filtering feature."

"This solution has two main features that we find very valuable; a threat-intelligence option, and a web/application filtering option. The technical support team are very good and very quick."

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

"Very reliable solution with good scalability and straightforward implementation."

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

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

"With Hillstone, TCO and ROI are very good, it's an easy sale."

More Hillstone E-Series pros

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

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

"Technical support is very good."

"The most valuable feature of Palo Alto Networks K2-Series is the configuration, it is very clear."

"Palo Alto Networks K2-Series is very stable."

"Palo Alto firewalls are scalable enough."

"Prevention of evasive threats is one of the best tools I've encountered."

"I have found the threat profile feature valuable."

More Palo Alto Networks K2-Series pros

Cons

"They have to just improve its performance when we enable all UTM features. When you enable all the features, the performance of FortiGate, as well as of Sophos and SonicWall, goes down."

"There are some cloud-based features that could be much more flexible than they currently are."

"The reporting was limited."

"Fortinet FortiGate is a firewall solution and once it's deployed, you can rest assured that your system is secure."

"I would rate the technical support of Fortinet a six or seven out of ten. It is not very helpful. I would like to see improvements in their support."

"One area for improvement for Fortinet FortiGate could be the price, as my clients here are small companies, and they might not have the resources or money to always buy a Fortinet FortiGate solution or FortiGate products."

"It's my understanding that more of the current generation features could be brought in. There could be more integration with EDRs, for example."

"If anything, they can support a user a little bit better."

More Fortinet FortiGate cons

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

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

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

"Support from Hillstone E-Series has a shortcoming that needs improvement."

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

"The current usage reporting is very basic. I would like to be able to access more granular data."

"The tool needs to improve its price."

More Hillstone E-Series cons

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

"The licensing cost is a typical complaint with many clients. The solution is expensive."

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

"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."

"From a cost perspective, I'd rate the solution two out of ten. I am trying to avoid Palo Alto, even though they have a very good solution, specifically due to the cost."

"When it comes to renewing the solution, they tend to try to jack up the pricing."

"There are a lot of bugs in this solution."

"When it comes to support, this is the worst company."

More Palo Alto Networks K2-Series cons

Pricing and Cost Advice

"In terms of the market, it's not a cheap product, but it's cost-effective."

"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."

"The solution is very expensive so pricing is rated a one out of ten."

"The platform offers a reasonable price point compared to its competitors."

"It's a very full-featured and it's priced well solution."

"It's an expensive solution"

"It's an expensive solution."

"While Fortinet FortiGate has a higher price point compared to Sophos XG, its user-friendly interface justifies the cost."

More Fortinet FortiGate pricing and cost advice

"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."

"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."

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

"Palo Alto firewalls are very expensive."

"Palo Alto Networks K2-Series is an expensive solution, the price could be reduced. They are more expensive than some of their competitors."

"The pricing is expensive."

"The overall price of Palo Alto Networks K2-Series could be reduced."

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

"It is an expensive solution."

"The price of the solution is expensive."

More Palo Alto Networks K2-Series pricing and cost advice

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Top Industries

By visitors reading reviews

Comms Service Provider

10%

Computer Software Company

Manufacturing Company

Financial Services Firm

Construction Company

14%

Financial Services Firm

11%

Comms Service Provider

11%

Manufacturing Company

10%

Performing Arts

15%

Construction Company

15%

Financial Services Firm

12%

Marketing Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	369
Midsize Enterprise	139
Large Enterprise	195

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...

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...

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 ...

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...

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...

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...

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 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.

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 ...

Sophos Firewall vs Fortinet FortiGate

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Check Point Quantum Force (NGFW) vs Fortinet FortiGate

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OpenVPN Access Server vs Hillstone E-Series

Compared 14% of the time

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Compared 7% of the time

Cisco Secure Firewall vs Hillstone E-Series

Compared 7% of the time

Cisco IOS SSL VPN vs Hillstone E-Series

Compared 7% of the time

Sophos Firewall vs Hillstone E-Series

Compared 6% of the time

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Juniper SRX Series Firewall vs Palo Alto Networks K2-Series

Compared 22% of the time

Cisco Secure Firewall vs Palo Alto Networks K2-Series

Compared 18% of the time

Check Point Quantum Force vs Palo Alto Networks K2-Series

Compared 14% of the time

Sophos Firewall vs Palo Alto Networks K2-Series

Compared 12% of the time

Check Point Quantum Force (NGFW) vs Palo Alto Networks K2-Series

Compared 4% of the time

More Palo Alto Networks K2-Series Competitors

Product Reports

Fortinet FortiGate

Download Fortinet FortiGate product report

Download Hillstone E-Series product report

Firewalls

May 2026

Palo Alto Networks K2-Series

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

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