Amazon DynamoDB vs Azure Cosmos DB: Which Should You Choose in 2026?
Choosing between Amazon DynamoDB and Azure Cosmos DB comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Amazon DynamoDB
Serverless NoSQL database with single-digit millisecond latency
Best for you if:
- • You want the higher-rated option (8.8/10 vs 8.6/10)
- • You need serverless databases features specifically
- • Amazon DynamoDB is a serverless NoSQL database designed for applications requiring single-digit millisecond latency
- • It scales automatically to handle any workload with built-in security and backup capabilities
Azure Cosmos DB
Globally distributed multi-model database on Azure
Best for you if:
- • You need managed databases features specifically
- • Azure Cosmos DB is a globally distributed NoSQL database with multiple consistency models
- • It provides single-digit millisecond latency and automatic scaling worldwide
| At a Glance |  Amazon DynamoDB | |
|---|---|---|
Price | Paid | Paid |
Best For | Serverless Databases | Managed Databases |
Rating | 88/100 | 86/100 |
| Feature | Amazon DynamoDB | Azure Cosmos DB |
|---|---|---|
| Pricing Model | Paid | Paid |
| Editorial Score | 88 | 86 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Serverless DatabasesManaged Databases | Managed DatabasesDatabase Builders |
Understanding the Differences
Both Amazon DynamoDB and Azure Cosmos DB solve similar problems, but they approach them differently.Amazon DynamoDB positions itself as "serverless nosql database with single-digit millisecond latency" while Azure Cosmos DBfocuses on "globally distributed multi-model database on azure". These differences matter depending on what you're trying to accomplish.
When to Choose Amazon DynamoDB
Amazon DynamoDB makes sense if you're looking for a comprehensive paid solution. With a score of 88/100, it's our top pick in this comparison.
When to Choose Azure Cosmos DB
Azure Cosmos DB is worth considering if you need a professional-grade tool.
Who Should Use What?
Bootstrapped or small team?
Neither is free, but both have their value. Test them both and see which clicks.
We'd pick: Azure Cosmos DB
Growing fast?
Your team doubled last quarter and you need tools that won't break when you add 50 more people. Amazon DynamoDB handles scale better in our testing.
We'd pick: Amazon DynamoDB
Enterprise with complex needs?
You need SSO, compliance certifications, and a support team that picks up the phone. Amazon DynamoDB is built for organizations like yours.
We'd pick: Amazon DynamoDB
Still not sure? Answer these 3 questions
How much can you spend?
Both are paid tools. If money isn't the issue, go with Amazon DynamoDB—it scored higher.
Do you care what other users think?
Both have similar review counts. Read a few before you commit.
Expert opinion or crowd wisdom?
Our team rated Amazon DynamoDB higher (88/100). But the community has upvoted Azure Cosmos DB more (0 votes). Pick your source of truth.
Key Takeaways
What Amazon DynamoDB Does Better
- Higher overall score (88/100)
- Our recommendation for most use cases
Consider Azure Cosmos DB If
- Its specific features better match your workflow
- You prefer its interface or design approach
The Bottom Line
If we had to pick one, we'd go with Amazon DynamoDB (88/100). But the honest answer is that "better" depends on your situation. Amazon DynamoDB scores higher in our analysis, but Azure Cosmos DB might be the right choice if its specific strengths align with what you need most. Take advantage of free trials to test both before committing.
Frequently Asked Questions
Is Amazon DynamoDB or Azure Cosmos DB better?
Based on our analysis, Amazon DynamoDB scores higher with 88/100. Amazon DynamoDB ispaid while Azure Cosmos DB is paid. The best choice depends on your specific needs and budget. We recommend testing both with free trials if available.
Can I switch from Amazon DynamoDB to Azure Cosmos DB easily?
Migration difficulty varies. Check if both tools support data export/import in compatible formats. Some tools offer migration assistance or have integration partners who can help with the transition.
Do Amazon DynamoDB and Azure Cosmos DB offer free trials?
Most software in this category offers free trials or free tiers. Amazon DynamoDB is paid with potential trial.Azure Cosmos DB is paid with potential trial. Visit their websites for current trial offers.