Microsoft Defender XDR vs SentinelOne Singularity

A side-by-side comparison on deployment model, data residency, licensing basis and security coverage. Structural facts are verifiable against vendor documentation; the scored dimensions are our assessment.

MD

Microsoft Defender XDR

Microsoft

7.6

Average across eight dimensions

Deployment
SaaS only
Licensing
M365 E5 licence tier
Time to value
Medium
Segment
Enterprise
G2
4.5 (288)
S1

SentinelOne Singularity

SentinelOne

8.0

Average across eight dimensions

Deployment
Hybrid
Licensing
Per endpoint
Time to value
Medium
Segment
Mid-market / enterprise
G2
4.7 (213)

Score by dimension

Dimension MD S1
Data residency control 2 4.5
Pricing value 7.5 6
Detection accuracy 8.5 9.5
Response speed 8.5 9.5
Ease of setup 8 7.5
Management UX 8 8.5
Integration depth 9.5 9
Security coverage 9 9.5

What the comparison says

Microsoft Defender XDR is SaaS only and SentinelOne Singularity is hybrid. Where your obligations dictate residency, that difference tends to settle the choice before any score is read.

Microsoft Defender XDR licenses on M365 E5 licence tier, SentinelOne Singularity on per endpoint. Neither bills on data volume, so the comparison is about what each licence includes rather than how much you send it.

Microsoft Defender XDR leads on pricing value. SentinelOne Singularity leads on residency, detection and response speed.

Microsoft Defender XDR

  • +Effectively free at the margin for organisations already licensed for M365 E5.
  • +Deepest possible integration with Entra ID, Exchange and the Microsoft estate.
  • +Security Copilot adds AI-assisted investigation without a separate purchase.
  • −Runs in Azure only. There is no on-premises deployment at any tier.
  • −Coverage is materially weaker across non-Windows endpoints and Linux servers.

Best for Microsoft-centric enterprises already paying for E5 Security.

Watch out Value collapses outside the Microsoft stack, and residency is fixed to Azure regions.

SentinelOne Singularity

  • +Autonomous containment without waiting for analyst intervention.
  • +One-click rollback reverses ransomware file encryption on the endpoint.
  • +Purple AI supports natural-language threat hunting across telemetry.
  • −Licensing model is complex. Validate per-seat versus capacity carefully.
  • −On-premises availability has varied by release and region; confirm before shortlisting.

Best for Teams wanting automated response without building the automation themselves.

Watch out Confirm current self-hosted availability directly. Do not assume from older documentation.

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More Microsoft Defender XDR comparisons

MD vs NP MD vs CS MD vs PA MD vs TM MD vs SO MD vs CR MD vs TX MD vs BD MD vs EL MD vs WZ MD vs CI MD vs FT MD vs ES

More SentinelOne Singularity comparisons

S1 vs NP S1 vs CS S1 vs PA S1 vs TM S1 vs SO S1 vs CR S1 vs TX S1 vs BD S1 vs EL S1 vs WZ S1 vs CI S1 vs FT S1 vs ES

Data last verified 2026-10-06. nPro publishes this comparison. Where nPro appears as one of the platforms listed, its card is marked and its scores are our own assessment. Third-party review scores are sourced from public vendor profiles. Structural facts are verifiable against each vendor's documentation: deployment model, licensing basis and residency.