Updated 15h ago
AWS vs Microsoft Azure SLA
Promised uptime per service, credits, support and what the status pages showed, side by side.
Pick up to four
AWS99.999%Highest SLA6/6 services · support 5 min
Microsoft Azure99.995%Highest SLA5/5 services · support 15 minPromise vs reality
ServiceDowntime vs allowed
Promised in the SLAObserved on the vendor's status pagePartial historyShortfall
Best SLA by category
| Category | AWS | Microsoft Azure |
|---|---|---|
| Compute | 99.99%Amazon EC2 | 99.99%Azure Virtual Machines |
| AI models | 99.9%Amazon Bedrock | 99.9%Azure OpenAI in Foundry Models |
| Databases | 99.999%Amazon DynamoDB | 99.995%Azure SQL Database |
| Storage | 99.9%Amazon S3 (Standard) | 99.99%Azure Blob Storage (Storage Accounts) |
Support: fastest first response
- Business Support+Greater of $29/month per account or 9% of monthly AWS charges up to $10K, 7% $10K-$80K, 5% $80K-$250K, 3% over $250K30 min
- Enterprise SupportGreater of $5k/month or 10% of monthly AWS charges up to $150K, 7% $150K-$500K, 5% $500K-$1M, 3% over $1M15 min
- Unified OperationsGreater of $50k/month or 10% of monthly AWS charges up to $1M, 6% $1M-$5M, 5% over $5M (90-day minimum commitment)5 min
- Developer (legacy, closed to new subscriptions)n/a
- Business (legacy, closed to new subscriptions)Minimum $100/month (per AWS FAQ, 'compared to $100 for Business Support previously')1 h
- Enterprise On-Ramp (legacy, being deprecated)Minimum $5,500/month (per AWS FAQ)30 min
- BasicIncluded for all Azure customersn/a
- Developer$29 per monthn/a
- Standard$100 per month1 h
- Professional Direct$1,000 per month1 h
- Unified Enterprise15 min
Popular comparisons
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