Wazuh vs Splunk vs Elastic vs Datadog vs Microsoft Sentinel
SIEM Platform Comparison
Comparison of 5 SIEM platforms — data ingestion, detection rules, pricing, deployment, and market position.
WazuhSplunkElasticDatadogMS Sentinel
Full Specification Comparison
| Specification | Wazuh | Splunk | Elastic | Datadog | MS Sentinel |
|---|---|---|---|---|---|
| Open Source | Yes | No | Yes (basic) | No | No |
| Price/GB/mo | Free | $50-100 (ingest) | $50-100 | $15-30 | $2.28 (first 10GB) |
| Cloud + On-prem | Both | Both | Both | Cloud only | Cloud only |
| AI/ML Detection | Basic | Yes (ES) | Yes | Yes | Yes (Copilot) |
| Compliance Reports | Yes (built-in) | Yes (add-on) | Yes | Limited | Yes (built-in) |
| Market Share | ~3% | ~35% | ~10% | ~8% | ~7% |
| Best For | SMB / budget | Enterprise | Search-heavy | Cloud-native | Azure shops |
Expert Verdict
Wazuh is the best open-source SIEM; Splunk is the enterprise leader with the most integrations; Elastic offers the best search; Datadog excels at cloud monitoring; Sentinel is best for Azure shops.
Subject Breakdown
Wazuh
3 Category Wins
- ★ Open Source: Yes
- ★ Price/GB/mo: Free
- ★ Compliance Reports: Yes (built-in)
Splunk
1 Category Wins
- ★ Market Share: ~35%
Elastic
0 Category Wins
Datadog
0 Category Wins
MS Sentinel
0 Category Wins