Fortinet FortiGate vs SonicWall
FortiGate is Fortinet's firewall line, built on the company's own ASIC security processors and designed to sit at the centre of the Fortinet Security Fabric alongside its switches, access points and endpoint products. SonicWall sells firewalls from small-office TZ units through NSa models for mid-sized organisations to NSsp models for large enterprises and data centres, with zero-day malware analysis through Capture ATP and its patented Real-Time Deep Memory Inspection (RTDMI). Both combine firewalling, intrusion prevention, web filtering and SD-WAN in one appliance.
Updated Sep 2026Summary
Choose FortiGate if you want SD-WAN and firewalling in one appliance and expect to add other Fortinet products under the Security Fabric. Choose SonicWall if you are buying through a partner for a small or mid-sized estate and want Capture ATP's memory-based zero-day inspection across a range from desktop to data-centre models.
Choose Fortinet FortiGate if:
- You want SD-WAN built into the same appliance as the firewall
- You plan to run other Fortinet products, such as FortiSwitch and FortiAP, under one Security Fabric
- You need hardware-accelerated inspection from purpose-built ASIC processors
- You manage many firewalls and want FortiManager for central orchestration
- You need virtual and cloud-native form factors alongside appliances
Choose SonicWall if:
- You want a range that runs from desktop TZ units up to NSsp models for data centres
- You want zero-day protection through Capture ATP sandboxing with RTDMI memory inspection
- You prefer to buy and be supported through a local partner or distributor
- You want firewalls, switches and access points managed together in Network Security Manager
- You want managed firewall services with one licensing model across hardware, virtual and cloud
Feature Comparison
| Feature | Fortinet FortiGate | SonicWall |
|---|---|---|
| Inspection hardware | Fortinet ASIC security processing units (SPUs) | Appliances from TZ to NSsp, with zero-day analysis in Capture ATP |
| Zero-day malware analysis | FortiGuard threat intelligence services | Capture ATP with patented RTDMI memory inspection |
| SD-WAN | Integrated, with application-aware routing | SD-WAN integration |
| Central management | FortiManager | Network Security Manager (NSM) |
| Wider ecosystem | Security Fabric across FortiSwitch, FortiAP and endpoint | Switches, access points and Capture Client endpoint security |
| Form factors | Appliances, FortiGate VM and FortiGate CNF | Hardware, virtual and cloud firewalls |
| How it is sold | Appliance plus annual FortiGuard subscription bundles | Through partners and authorised distributors; no public list prices |
| TLS inspection | SSL/TLS inspection on the ASIC path | TLS/SSL inspection, with RTDMI catching threats hidden by encryption |