Microsoft Defender for Business vs SentinelOne Singularity Complete
Defender for Business lists at $3.00 per user per month and scores 77/100; Singularity Complete at $179.99 per endpoint per year and scores 39/100.
Field by field
TEAL UNDERLINE = BETTER FOR AN SMB BUYER, PER ROW| FIELD | Microsoft Defender for Business | SentinelOne Singularity Complete |
|---|---|---|
| Price at 10 seats | $3.00/user/mo | $179.99/endpoint/yr |
| Pricing model | per user | per endpoint |
| Minimum seats | 1 | 5 |
| Managed 24/7 response | Not offered on this tier | Add-on |
| AV-Test | 2026-06 · protection 6/6.0 | Not tested |
| AV-Comparatives | 2026-H1 · 98.8% · 0 FP | Not tested |
| MITRE ATT&CK | 2024 · 100% coverageDATED | 2024 · 100% coverageDATED |
| Ransomware rollback | Included | Included |
| Identity threat detection | Not offered on this tier | Add-on |
| MSP multi-tenant console | Included | Included |
| Self-serve purchase | Yes — card checkout | No |
| Free trial | 30 days, no card | 30 days, no card |
| SMB Fit Score | 77 /100 | 39 /100 |
Verdict
The 18-point gap comes from efficacy: Microsoft scores 18/35 against SentinelOne’s 0/35. They differ on managed 24/7 response: Microsoft does not offer managed 24/7 response; SentinelOne offers managed 24/7 response as a paid add-on.
Which to pick
SentinelOne ineligible: self-serve purchase: no
Higher SMB Fit Score: 77/100 vs 39/100
Higher SMB Fit Score: 77/100 vs 39/100
Frequently asked
What is the price difference between Microsoft Defender for Business and SentinelOne Singularity Complete?
Microsoft Defender for Business lists at $3.00/user/mo; SentinelOne Singularity Complete at $179.99/endpoint/yr.
Which product includes EDR?
Microsoft Defender for Business: Yes. SentinelOne Singularity Complete: Yes.
Which has better independent test results?
Microsoft Defender for Business: AV-Test, AV-Comparatives, MITRE ATT&CK. SentinelOne Singularity Complete: MITRE ATT&CK.
What is the minimum number of endpoints for each product?
Microsoft Defender for Business: 1. SentinelOne Singularity Complete: 5.
Does either include managed detection and response (MDR)?
Microsoft Defender for Business: No. SentinelOne Singularity Complete: Available as a paid add-on.
What is the SMB Fit Score for each?
Microsoft Defender for Business: 77/100. SentinelOne Singularity Complete: 39/100. The score measures evidence-based fit for small businesses.