Microsoft Defender for Business vs SentinelOne Singularity (2026)
Our verdict
Microsoft Defender for Business vs SentinelOne Singularity: on our data-weighted scoring, SentinelOne Singularity edges ahead (9.0 vs 8.2/10). Microsoft Defender for Business starts at $3/user/mo and is best for smbs already on microsoft 365 wanting bundled edr; SentinelOne Singularity starts at $69.99/endpoint/yr and is best for teams wanting autonomous ai-driven edr/xdr. Choose SentinelOne Singularity for the stronger overall track record; consider Microsoft Defender for Business if its pricing model or fit matches your environment better. Side-by-side table below.
| Microsoft Defender for Business | SentinelOne Singularity | |
|---|---|---|
| Starting price | $3/user/mo | $69.99/endpoint/yr |
| Pricing model | per user | per endpoint |
| Free trial / tier | yes | yes |
| Best for | SMBs already on Microsoft 365 wanting bundled EDR | Teams wanting autonomous AI-driven EDR/XDR |
| Deployment | Cloud | Cloud |
| G2 rating | 4.4/5 (300) | 4.7/5 (2000) |
| Capterra rating | — | — |
| Our score | 8.2/10 | 9.0/10 |
Microsoft Defender for Business
Pros
- Cheap if you have M365
- Solid detection
- Per-user (covers multiple devices)
Cons
- Best within Microsoft ecosystem
- Licensing nuances
- Tuning needed
Visit Microsoft Defender for Business →
Affiliate link: Microsoft Defender for Business may pay us a commission if you sign up through this link. It never affects our data-driven ranking.
SentinelOne Singularity
Pros
- Top-tier autonomous detection
- Strong rollback
- Excellent independent test scores
Cons
- EDR needs Complete tier
- Data Lake costs extra
- List prices rarely paid (negotiate)
Visit SentinelOne Singularity →
Affiliate link: SentinelOne Singularity may pay us a commission if you sign up through this link. It never affects our data-driven ranking.
Choose Microsoft Defender for Business if…
You need smbs already on microsoft 365 wanting bundled edr. See the Microsoft Defender for Business pricing and review.
Choose SentinelOne Singularity if…
You need teams wanting autonomous ai-driven edr/xdr. See the SentinelOne Singularity pricing and review.
In depth
Pricing: SentinelOne Singularity vs Microsoft Defender for Business
SentinelOne Singularity bills on a per endpoint model from $69.99/endpoint/yr (yes trial), while Microsoft Defender for Business uses a per user model from $3/user/mo (yes trial). Because the models differ, the cheaper option flips depending on your fleet size — model both at your seat/endpoint count.
Features & deployment
SentinelOne Singularity ships 5 headline capabilities (Autonomous AI detection, Storyline attack visualization, EDR/XDR, Ranger network discovery) and deploys Cloud. Microsoft Defender for Business ships 5 (EDR for SMB, Next-gen AV, Threat & vulnerability mgmt, Auto-investigation), deploying Cloud.
Ratings & verdict
SentinelOne Singularity holds 4.7/5 (2000 G2 reviews); Microsoft Defender for Business holds 4.4/5 (300 G2 reviews). On our data-weighted score, SentinelOne Singularity edges ahead (9.0 vs 8.2/10). Pick Microsoft Defender for Business instead when smbs already on microsoft 365 wanting bundled edr. See SentinelOne Singularity alternatives or Microsoft Defender for Business alternatives.
Frequently asked questions
- Microsoft Defender for Business vs SentinelOne Singularity: which is better?
- Microsoft Defender for Business vs SentinelOne Singularity: on our data-weighted scoring, SentinelOne Singularity edges ahead (9.0 vs 8.2/10). Microsoft Defender for Business starts at $3/user/mo and is best for smbs already on microsoft 365 wanting bundled edr; SentinelOne Singularity starts at $69.99/endpoint/yr and is best for teams wanting autonomous ai-driven edr/xdr.
- Is Microsoft Defender for Business cheaper than SentinelOne Singularity?
- Microsoft Defender for Business starts at $3/user/mo and SentinelOne Singularity starts at $69.99/endpoint/yr (see the pricing rows for models and limits).