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Hillstone T-Series vs Zscaler Cloud Firewall 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

Hillstone T-Series
Ranking in Firewalls
42nd
Average Rating
7.4
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Zscaler Cloud Firewall
Ranking in Firewalls
37th
Average Rating
8.2
Reviews Sentiment
6.3
Number of Reviews
20
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Firewalls category, the mindshare of Hillstone T-Series is 0.6%, up from 0.1% compared to the previous year. The mindshare of Zscaler Cloud Firewall is 1.0%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Zscaler Cloud Firewall1.0%
Hillstone T-Series0.6%
Other98.4%
Firewalls
 

Featured Reviews

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…
Carlos Snel - PeerSpot reviewer
Director at Aquila ICT Solutions
Has streamlined secure deployments across large enterprises while offering reliable protection and intuitive management
The centralized management console, also referred to as the Zscaler dashboard, impacts the ability of my customers to respond to security incidents significantly. I see it as user-friendly, and clients are really happy with using it, which motivates them to keep using Zscaler Cloud Firewall because they enjoy the GUI. It's very intuitive, making it easy to navigate alerts and incidents. My clients rarely have questions about where to find specific information once Zscaler Cloud Firewall is running. The interface speaks for itself, requiring little to no additional training, which is a major plus. Advanced threat protection features in Zscaler Cloud Firewall are practically the key component that every customer wants. Unfortunately, it is an option and not included in the basic package. Clients need to pay for the next higher bundle to access it, but practically all clients I have dealt with want this feature 100%. Regarding visibility, I can confirm that Zscaler Cloud Firewall indeed includes a feature for application layer visibility embedded in the service. It provides visibility into what you're doing, which is especially interesting nowadays when discussing AI tools, as companies do not want their employees to copy-paste sensitive information into AI systems. We have seen cases such as Samsung's chip design where sensitive info got exposed. The visibility of applications, including cloud applications and AI tools, is significant for compliance with data policies, and you can also run reports and alerts on it.

Quotes from Members

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

Pros

"We found some limitations with Fortinet FortiGate, and we are satisfied with Hillstone T-Series right now."
"It has been stable so far."
"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."
"Hillstone supports IOT setup and detecting intrusions from IOT or CCTV connectivity, and with this solution, we can also detect unauthorized devices plugged into the CCTV network and sound the alarm to the administrator."
"We installed Hillstone T-Series after a ransomware attack. The dashboard and user interface are very good."
"Zscaler is one of the leading vendors in the cloud space."
"Most of the features that Zscaler has to offer, we will deploy."
"Once you have Zscaler running you have access to configure it however you want."
"Users are offered protection from anywhere on any device, with a full set of security features including firewall, IPS, web security, CASB, and DLP."
"We like URL filtering, category filtering, and content filtering."
"The centralized management console, also referred to as the Zscaler dashboard, impacts the ability of my customers to respond to security incidents significantly, and clients are really happy with using it, which motivates them to keep using Zscaler Cloud Firewall because they enjoy the GUI."
"The product’s firewall and VPN package are fantastic compared to any other solution."
"The scalability is okay. We have around 2200 people using this solution."
 

Cons

"Licensing is not cheap."
"Licensing is not cheap, but there are customers who will buy because they understand that this has a cost involved and they will cater their budget for that."
"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."
"Currently, the Data Leak Prevention is only for web filtering and there is nothing for email and the USB, so it would be an improvement if that could be included."
"The product could improve its integration with some legacy systems."
"Zscaler doesn't do intra site segmentation, therefore, if you want segmentation within a branch office, that kind of traffic flow is not well addressed."
"If I can get rid of Jetscaler, I will use Twingate for sure."
"Zscaler Cloud Firewall should have a better understanding of all dynamic cloud applications."
"There are several areas for improvement. Firstly, the GUI is outdated, with noticeable lags and delays, especially when generating reports for past transactions."
"Pricing is a challenge."
"Apart from the issues associated with the product in areas like the DC performance issues and DC failover, Zscaler Cloud Firewall's IP should not have a proxy IP."
 

Pricing and Cost Advice

"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."
"We got a much cheaper price than that provided by Fortinet right now."
"It is expensive for small businesses."
"The licensing is on a yearly basis. It is somewhere around 30 or 40 pounds per user for our organization."
"It comes at a significantly reduced cost while ensuring control and effectiveness."
"On a scale from one to ten, where one is cheap, and ten is expensive, I rate the solution's pricing an eight out of ten."
"There is an annual license required for the use of the Zscaler Cloud Firewall."
"Zscaler is priced too high compared to the cost of Fortinet."
"There are licensing costs, and I would not say that it's a cheap vendor."
"It is not the most budget-friendly solution, but it's important to consider its overall value."
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Top Industries

By visitors reading reviews
Construction Company
15%
Comms Service Provider
15%
Manufacturing Company
9%
Transportation Company
8%
Construction Company
11%
Manufacturing Company
9%
Financial Services Firm
8%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise2
Large Enterprise13
 

Questions from the Community

Ask a question
Earn 20 points
Which lesser known firewall product has the best chance at unseating the market leaders?
Netscope, Zscaler if they continue route they are on now. FIrewalls needs great deal of automation on each end, datacenter and endpoint. In between you have branch office. So blending EPP and firew...
What is your experience regarding pricing and costs for Zscaler Cloud Firewall?
My experience with pricing, setup cost, and licensing was fine.
What needs improvement with Zscaler Cloud Firewall?
I think Zscaler Cloud Firewall can be improved by adding more features. The needed improvements involve scalability, which is something I wish they would address.
 

Also Known As

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

Overview

 

Sample Customers

University of Córdoba
Zenith Live, Azure, Carlsberg Group
Find out what your peers are saying about Hillstone T-Series vs. Zscaler Cloud Firewall and other solutions. Updated: September 2026.
913,683 professionals have used our research since 2012.