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Amazon Timestream vs Microsoft Azure Cosmos DB comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Amazon Timestream
Ranking in Managed NoSQL Databases
11th
Average Rating
9.0
Reviews Sentiment
6.9
Number of Reviews
5
Ranking in other categories
No ranking in other categories
Microsoft Azure Cosmos DB
Ranking in Managed NoSQL Databases
1st
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
116
Ranking in other categories
Database as a Service (DBaaS) (4th), NoSQL Databases (1st), Vector Databases (1st)
 

Mindshare comparison

As of November 2026, in the Managed NoSQL Databases category, the mindshare of Amazon Timestream is 4.5%, down from 5.9% compared to the previous year. The mindshare of Microsoft Azure Cosmos DB is 14.6%, down from 16.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Managed NoSQL Databases Mindshare Distribution
ProductMindshare (%)
Microsoft Azure Cosmos DB14.6%
Amazon Timestream4.5%
Other80.9%
Managed NoSQL Databases
 

Featured Reviews

JS
VP Global IoT Solutions at 1NCE
Effortless time-series data analysis with seamless AWS integration and a straightforward setup
We use Amazon Timestream as a data historian for IT data. It stores all individual measurements of our customers' IoT devices for a certain period of time, allowing them to perform time-series-based analyses on top of it Using Amazon Timestream has been seamless due to its integration within the…
Aman-Narang - PeerSpot reviewer
Technical Manager at Infosys
Real-time messaging has transformed customer updates and now powers responsive AI experiences
The primary benefits of Microsoft Azure Cosmos DB include horizontal scalability. The main advantage is that it handles data growth without requiring database redesign when traffic increases. Low latency access is another key benefit, as read and write operations are very fast, which is extremely helpful for real-time applications. Flexibility is also valuable because Microsoft Azure Cosmos DB uses JSON schema format, which contrasts with traditional table schemas that require time-consuming changes. In modernization scenarios where client requirements change rapidly, Microsoft Azure Cosmos DB offers more flexible schema design. High availability is another important feature, as it is well-suited for business-critical systems. My overall experience using Microsoft Azure Cosmos DB with other Azure services shows that it is more flexible compared to SQL Database and more readable because of its JSON format, making it easy to understand. It is more interactive because viewing the Microsoft Azure Cosmos DB schema clearly shows what is happening in the application and what will be achieved. In contrast, SQL requires writing many queries to obtain details, making Microsoft Azure Cosmos DB more suitable and flexible. My team's experience developing with Microsoft Azure Cosmos DB SDKs and APIs has been very comfortable and easy to implement. We are currently migrating .NET applications to Python-based AI solutions using Copilot, where we performed reverse engineering and are moving to forward engineering. We use APIs to connect with Microsoft Azure Cosmos DB and manage database containers and items, performing CRUD operations such as create, delete, and read operations, and querying JSON. We are using REST APIs with Python-based solutions, with a service layer and Microsoft Azure Cosmos DB integration.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"If you drop a message, the solution's technical support will definitely reply."
"What I like best is that the tool is easy to collect and store data and is fast and scalable. The fully managed database is easy to understand."
"You can quickly aggregate data from the last ten years with Amazon Timestream."
"Using Amazon Timestream has been seamless due to its integration within the AWS ecosystem and ease of use for the engineering team."
"The best things about Amazon Timestream are it's maintenance-free, customizable, and has no lag issues. It's always real-time."
"The graphical representation of data is the most valuable feature of the solution."
"As a NoSQL database, it offers schema flexibility which simplifies design and reduces initial engineering overhead."
"Cosmos DB is stable and easy to use."
"The most valuable features include the global write capability, which allows customers to read and write across different regions simultaneously, enhancing performance and availability."
"The best feature of Microsoft Azure Cosmos DB is the replication all over the world."
"Microsoft Azure Cosmos DB helped improve our organization's search result quality significantly when we started using it about eight years ago."
"The solution is stable."
"The efficiency of search capabilities is significant, particularly when it comes to the flexibility of conducting in-depth, almost recursive searches that are both efficient and cost-effective."
 

Cons

"The tool could be improved by increasing the batch size from one hundred records to five hundred or a thousand to speed up indexing."
"Arranging the database schema is a bit challenging."
"The solution could be improved by making it easier for new graduates like me to use. Better explanations of queries and how to use them with other AWS services would help."
"There are disadvantages when it comes to time series databases since you can't delete anything from Amazon Timestream data."
"There are certain features that we would like to see added and we are collaborating with the product teams on these areas."
"The built-in integration of the solution is tight."
"At this stage, we would like more enterprise support. We use MongoDB a lot, and we're trying to get rid of MongoDB. So, I would like to see more features in the Cosmos DB API for MongoDB space."
"The pricing of the solution is an area with certain shortcomings."
"We had to go to forums to check if it was failing for everyone else. It was surprising that a large organization like Microsoft doesn't provide an official statement about the maintenance or issues that could impact our overall usage."
"In that scenario, two things can be improved."
"We would like to see advancements in AI with the ability to benchmark vector search capabilities, ensuring it answers questions accurately. During our initial implementation, we faced challenges with indexing and sorting, which are natively available in other offerings but required specific configurations in Cosmos."
"An improvement would be a more robust functionality around updating elements on a document, or some type of procedural updates that don't require pulling the entire document."
"The only problem I face is more with infrastructure as code templates that don't cover everything that can be set up or configured on the portal, requiring some manual work which is additional work for us."
 

Pricing and Cost Advice

"For 1GB of data, the solution charges $ 0.01 in the US region."
"Amazon Timestream's pricing seems manageable to me."
"We pay over $10 million a year to Amazon."
"We don't see high costs with Amazon Timestream, which may vary by company."
"Its pricing structure is quite flexible."
"The pricing model of Microsoft Azure Cosmos DB is a bit complex."
"Azure Cosmos DB's pricing is competitive, though there is a need for more personalized pricing models to accommodate small applications without incurring high charges. A suggestion is to implement dynamically adjustable pricing that accounts for various user needs."
"Cosmos DB is cost-effective when starting but requires careful management."
"Pricing is mid- to high-end."
"Cosmos DB is expensive, and the RU-based pricing model is confusing. Although they have a serverless layer, there are deficiencies in what I can define and assign to a database. Estimating infrastructure needs is not straightforward, making it challenging to manage costs."
"Cosmos DB is a PaaS, so there are no upfront costs for infrastructure. There are only subscriptions you pay for Azure and things like that. But it's a PaaS, so it's a subscription service. The license isn't perpetual, and the cost might seem expensive on its face, but you have to look at the upkeep for infrastructure and what you're saving."
"We are not consuming so much yet since we are at the beginning of using this solution. I would rate the pricing of Microsoft Azure Cosmos DB a six out of ten."
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Top Industries

By visitors reading reviews
No data available
Outsourcing Company
11%
Financial Services Firm
11%
Legal Firm
9%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business36
Midsize Enterprise25
Large Enterprise60
 

Questions from the Community

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What is your experience regarding pricing and costs for Microsoft Azure Cosmos DB?
Regarding pricing, Microsoft Azure Cosmos DB's dynamic auto-scale and serverless models have helped reduce costs and operational efforts. The dynamic auto-scale feature automatically adjusts th...
What needs improvement with Microsoft Azure Cosmos DB?
Regarding improvements for Microsoft Azure Cosmos DB, partition key design is critical. Choosing the appropriate partition key based on read and write patterns is essential, and sometimes uneven wo...
What is your primary use case for Microsoft Azure Cosmos DB?
Microsoft Azure Cosmos DB is suitable for several basic use cases. For real-time applications such as order status and shipment tracking, Microsoft Azure Cosmos DB is an excellent choice because it...
 

Also Known As

No data available
Microsoft Azure DocumentDB, MS Azure Cosmos DB
 

Overview

 

Sample Customers

Expedia, Intuit, Royal Dutch Shell, Brooks Brothers
TomTom, KPMG Australia, Bosch, ASOS, Mercedes Benz, NBA, Zero Friction, Nederlandse Spoorwegen, Kinectify
Find out what your peers are saying about Amazon Timestream vs. Microsoft Azure Cosmos DB and other solutions. Updated: September 2026.
921,665 professionals have used our research since 2012.