Fidelis Security vs SentinelOne: Side-by-Side Comparison (2026)

Fidelis Security: XDR platform with NDR, EDR, deception, AD security, and CNAPP capabilities. built by Fidelis Security. Core capabilities include Forensic and metadata collection from 300+ attributes, Threat detection with MITRE ATT&CK mappings, Deep Session Inspection technology..

SentinelOne: AI-driven endpoint protection platform for threat detection and response. built by SentinelOne. Core capabilities include AI-powered threat detection, Automated threat response, Endpoint protection..

Both serve the Extended Detection and Response market but differ in approach, feature depth, and target audience.

Fidelis Security differentiates with Forensic and metadata collection from 300+ attributes, Threat detection with MITRE ATT&CK mappings, Deep Session Inspection technology. SentinelOne differentiates with AI-powered threat detection, Automated threat response, Endpoint protection.

Fidelis Security is developed by Fidelis Security. SentinelOne is developed by SentinelOne. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Fidelis Security and SentinelOne serve similar Extended Detection and Response use cases: both are Extended Detection and Response tools. Review the feature comparison above to determine which fits your requirements.