Independent comparison for endpoint detection and response platforms. Updated May 2026.
Quick verdict: Choose SentinelOne Singularity for autonomous on-agent AI detection and response, top-tier MITRE ATT&CK results, and the Singularity Data Lake for telemetry consolidation. Choose Sophos Intercept X for mid-market and channel-led deployments where Sophos Central's unified management across endpoint, firewall, email, and ZTNA — combined with industry-leading MDR economics — match the buyer's operational model. The differentiator is autonomous detection architecture vs unified mid-market security with managed service depth.
| Criteria | SentinelOne Singularity | Sophos Intercept X |
|---|---|---|
| Rating | 4.5 / 5.0 (3,400 reviews) | 4.5 / 5.0 (3,300 reviews) |
| Target Market | Mid-market, enterprise, federal | SMB, mid-market, lower enterprise |
| Architecture | On-agent AI, autonomous response | Cloud-managed via Sophos Central |
| Offline Detection | Full detection and prevention offline | Reduced offline capability |
| MITRE ATT&CK Results | Consistent 100% detection across rounds | Strong, ransomware-specific strengths |
| Ransomware Protection | Behavioural AI prevention and rollback | CryptoGuard rollback technology |
| Portfolio Breadth | EDR, identity, cloud, SIEM (Data Lake) | EDR, firewall, email, ZTNA, MDR |
| Managed Service | Vigilance MDR, WatchTower threat hunting | Sophos MDR (largest by customer count) |
| Pricing Model | Per-endpoint subscription, modular | Per-device, channel-priced |
| Best For | Autonomous response, modern SOC | Mid-market, unified Sophos portfolio |
SentinelOne Singularity's differentiating architecture is on-agent AI — detection and response logic runs on the endpoint rather than requiring cloud round-trip. Full prevention, detection, and remediation continue when endpoints are offline, a meaningful advantage for distributed workforces and air-gapped environments. SentinelOne consistently delivers 100% detection rates in recent MITRE ATT&CK evaluations. The Storyline feature automatically correlates related events into a single attack narrative, reducing analyst investigation time. Singularity Data Lake provides telemetry retention and search, positioning SentinelOne as a credible SIEM replacement for security-focused use cases.
Sophos Intercept X has been a consistent leader in mid-market endpoint protection for over a decade. CryptoGuard ransomware rollback technology — monitoring for ransomware behaviour and automatically reverting encrypted files — remains a unique differentiator. Sophos Central provides a unified management console across the full Sophos portfolio (endpoint, firewall, email, mobile, ZTNA, MDR), enabling Synchronised Security where endpoint detection automatically triggers firewall response. For mid-market organisations without dedicated SOC staff, this unified approach reduces operational burden materially.
Both platforms offer strong managed services. SentinelOne Vigilance MDR delivers 24x7 monitoring and response with WatchTower as the threat hunting team. Sophos MDR is the largest MDR service in the market by customer count, with strong mid-market pricing and proven scalability. The choice often comes down to whether the organisation operates a SOC (favouring SentinelOne) or wants the operational burden lifted entirely (favouring Sophos MDR economics). Browse additional EDR options in the cybersecurity category.
SentinelOne Singularity pricing is per-endpoint with modular tiers. Singularity Complete typically lists at $6-8 per endpoint per month at modest scale, with volume discounts available. Vigilance MDR adds approximately $3-5 per endpoint per month. Singularity Data Lake is priced separately based on data volume retained.
Sophos pricing is channel-priced and generally 20-30% below SentinelOne for equivalent endpoint protection. Intercept X Advanced with XDR lists at approximately $4-6 per endpoint per month at mid-market scale. Sophos MDR is competitively priced at $7-10 per endpoint per month for fully managed service. For mid-market organisations under 5,000 endpoints, Sophos total cost is typically 25-40% lower than SentinelOne for comparable functional coverage including MDR.
Choose SentinelOne Singularity if autonomous on-agent response and offline operation matter to your architecture, you need top-tier MITRE ATT&CK detection efficacy, or you want a modern security telemetry platform via Singularity Data Lake. SentinelOne also fits organisations with distributed workforces, mixed-OS estates including Linux server fleets, and customers wanting a viable best-of-breed alternative to CrowdStrike at slightly lower cost.
Choose Sophos Intercept X if you are a mid-market organisation valuing unified security across endpoint, firewall, email, and ZTNA from a single vendor with a single management console. Sophos is also the right choice when channel-led purchasing reduces friction, when Sophos MDR provides the managed service economics that internal SOC build cannot match, and when CryptoGuard rollback is part of the ransomware defence strategy.