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Head-to-head · Network Firewall Software

WatchGuard Firebox vs Zscaler Cloud Firewall

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score WatchGuard Firebox #4 in Network Firewall Software 9.1/10 Pricing on request ✓ 3 of 3 features Visit WatchGuard
Zscaler Cloud Firewall #7 in Network Firewall Software 9.0/10 Pricing on request ✓ 2 of 3 features Visit Zscaler

WatchGuard Firebox leads on 0 checks, Zscaler Cloud Firewall on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreWatchGuard Firebox · 9.1/10
  • Most featuresWatchGuard Firebox · 3 of 3

WatchGuard Firebox scores higher on our rubric for network firewall software: 9.1 against 9.0 out of 10; our editors rank them #4 and #7.

On deployment model, WatchGuard Firebox gives you Hybrid where Zscaler Cloud Firewall offers Cloud.

WatchGuard Firebox is the better fit for distributed teams using cloud-managed appliances. Zscaler Cloud Firewall is the better fit for cloud-first teams needing secure internet access.

  • WatchGuard Firebox fits best

    Distributed teams using cloud-managed appliances

  • Zscaler Cloud Firewall fits best

    Cloud-first teams needing secure internet access

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Side by side

Feature WatchGuard Firebox 9.1/10 Visit ↗ Zscaler Cloud Firewall 9.0/10 Visit ↗
At a glance
Editor score 9.1 9.0
Ranking #4 in Network Firewall Software #7 in Network Firewall Software
Best for Distributed teams using cloud-managed appliances Cloud-first teams needing secure internet access
Pricing model Paid Paid
Starting price Pricing on request —
Free plan Not checked yet Not checked yet
Free trial — —
Deployment Cloud, Self-hosted, Browser extension Cloud
Platforms Web Web
Support Live chat, Phone, Tickets, Community, Docs Phone, Tickets, Community, Docs · 24/7
Integrations 5 integrations 150+ integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features WatchGuard Firebox 3/3 · Zscaler Cloud Firewall 2/3
Intrusion prevention ✓ ✓
SSL inspection ✓ ✓
Site-to-site VPN ✓ (best) Not checked yet
Specs
Deployment model Hybrid Cloud
Firewall throughput Not checked yet Not checked yet
Concurrent connections Not checked yet Not checked yet
Our review
Pros
  • Combines firewalling, VPN, IPS, HTTPS inspection, filtering, and threat services
  • Supports physical, virtual, AWS, and Microsoft Azure deployments
  • Centralizes management through WatchGuard Cloud
  • TLS inspection, DNS security, and intrusion prevention
  • Centralized policies with bandwidth control and traffic logging
  • Integrates with SIEM/XDR, SD-WAN, cloud, and identity tools
Cons
  • Pricing requires contact with WatchGuard or a partner
  • Model-specific throughput and connection figures vary across the family
  • Optional security services and multiple models add purchasing complexity
  • Pricing requires contacting sales
  • May not fit teams requiring site-to-site VPN support
  • Cloud deployment may not suit appliance-first environments
Our verdict

WatchGuard Firebox is a network security firewall family for small businesses, branch offices, midmarket organizations, and enterprises. It includes physical T-Series and M-Series appliances, FireboxV for virtual environments, and Firebox…

Read the review →

Zscaler Cloud Firewall is a cloud-native firewall service for organizations securing users, applications, locations, and cloud environments. It protects web and non-web traffic across ports and protocols, with TLS/SSL inspection,…

Read the review →
  1. WatchGuard FireboxNetwork Firewall Software 9.1Pricing on request
  2. Zscaler Cloud FirewallNetwork Firewall Software 9.0Pricing on request

Strengths and trade-offs

  • WatchGuard Firebox — where it wins

    • Combines firewalling, VPN, IPS, HTTPS inspection, filtering, and threat services
    • Supports physical, virtual, AWS, and Microsoft Azure deployments
    • Centralizes management through WatchGuard Cloud

    Where it doesn't

    • Pricing requires contact with WatchGuard or a partner
    • Model-specific throughput and connection figures vary across the family
    • Optional security services and multiple models add purchasing complexity

  • Zscaler Cloud Firewall — where it wins

    • TLS inspection, DNS security, and intrusion prevention
    • Centralized policies with bandwidth control and traffic logging
    • Integrates with SIEM/XDR, SD-WAN, cloud, and identity tools

    Where it doesn't

    • Pricing requires contacting sales
    • May not fit teams requiring site-to-site VPN support
    • Cloud deployment may not suit appliance-first environments
  • WatchGuard Firebox9.1/10 · Pricing on request

    A broad hybrid firewall family for distributed teams that need centralized cloud management.

    Visit WatchGuardFull verdict →
  • Zscaler Cloud Firewall9.0/10 · Pricing on request

    A cloud-native firewall for distributed teams that need centralized inspection and policy control.

    Visit ZscalerFull verdict →

More comparisons

All network firewall software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update