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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
9th
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
7.0
Number of Reviews
113
Ranking in other categories
Database as a Service (DBaaS) (3rd), NoSQL Databases (1st), Vector Databases (1st)
 

Mindshare comparison

As of September 2026, in the Managed NoSQL Databases category, the mindshare of Amazon Timestream is 4.8%, down from 6.8% compared to the previous year. The mindshare of Microsoft Azure Cosmos DB is 14.9%, down from 16.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Managed NoSQL Databases Mindshare Distribution
ProductMindshare (%)
Microsoft Azure Cosmos DB14.9%
Amazon Timestream4.8%
Other80.3%
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…
Michael Hasenfang - PeerSpot reviewer
Director, Platform Engineering - Infrastructure Systems and Automation at a computer software company with 1,001-5,000 employees
Collecting compliance data has become more efficient while managing unstructured inputs for reporting
The features that I find most valuable within Microsoft Azure Cosmos DB are probably the cost, as the cost optimization is good. The storage and queryability are good for what we're doing; it's a lot of unstructured data, so having a platform to put that in and then be able to harvest that data out for the reporting we do is essential. In terms of cost saving, it was probably easily 30 to 40% cheaper than doing a standard SQL, which is what we saw just on piloting and getting in there. We were initially thinking 20 to 25%, but we were probably more at the 35 to 40%. We are using Microsoft Azure Cosmos DB's hybrid search today. The value that it has added to my AI or search workloads is that I think it's optimized that process and made it easier. We have a lot of unstructured data coming from different dissimilar systems and different data sources, so correlating those things together and making sense of it has been very beneficial. Microsoft Azure Cosmos DB has had pretty good performance with searching through large amounts of data; it's been fast, and we haven't seen a lot of performance degradation while building larger queries and bringing in a large set of data. The dynamic auto-scale or serverless model from Microsoft Azure Cosmos DB has helped reduce costs and operational effort; however, it's hard to quantify how that plays out since you're using a shared service. It shifts my focus away from building, managing, and upgrading to adding value.

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."
"Using Amazon Timestream has been seamless due to its integration within the AWS ecosystem and ease of use for the engineering team."
"You can quickly aggregate data from the last ten years with Amazon Timestream."
"The best things about Amazon Timestream are it's maintenance-free, customizable, and has no lag issues. It's always real-time."
"The best feature of Microsoft Azure Cosmos DB is API access, which makes it very easy to interact with the database without needing to write queries."
"The searching capability is exceptional. It is very simple and incomparable to competitors."
"Cosmos DB is a pretty stable solution. I would rate it a ten out of ten."
"The most valuable feature of the solution is that it is scalable with multiple master files."
"Microsoft Azure Cosmos DB is very fast. Data retrieval and data storage are very quick."
"The solution is scalable, and we intend to increase our usage."
"The best features of Microsoft Azure Cosmos DB include the speed to query data; as long as you index properly, retrieving data is fast and lightweight."
"As a NoSQL database, it offers schema flexibility which simplifies design and reduces initial engineering overhead."
 

Cons

"There are disadvantages when it comes to time series databases since you can't delete anything from Amazon Timestream data."
"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."
"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."
"There are certain features that we would like to see added and we are collaborating with the product teams on these areas."
"We'd like to avoid full DR replication if possible, as this would result in significant cost savings."
"The built-in integration of the solution is tight."
"New features can be included and its stability can be further improved."
"Azure Cosmos DB is generally a costly resource compared to other Azure resources. It comes with a high cost."
"From a scalability perspective, the key database has to be optimized in a better way that can support auto-scaling architecture or scalability architecture."
"Cosmos DB should continue evolving in AI features. We expect Cosmos DB to lead on that. There is potential for improved security features, which is important for data storage, especially for Dell Technologies. We must ensure data security remains the top priority."
"Slight enhancements in integration interfaces, expanded dashboard functionalities, and broader use-case support would be beneficial."
"There are multiple approaches to implementing multitenant architecture on Azure Cosmos DB, but there is still no single or best-recommended approach when you have a big variance in the size of your tenants. That is something that still needs to be worked on."
 

Pricing and Cost Advice

"Amazon Timestream's pricing seems manageable to me."
"For 1GB of data, the solution charges $ 0.01 in the US region."
"We don't see high costs with Amazon Timestream, which may vary by company."
"We pay over $10 million a year to Amazon."
"For the cloud, we don't pay for the license, but for the on-prem versions, we do pay."
"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."
"Its pricing is not bad. It is good."
"The pricing for Cosmos DB has improved, particularly with the new pricing for Autoscale."
"Cosmos DB is expensive compared to any virtual machine based on conventional RDBMS like MySQL or PostgreSQL."
"Its pricing is higher compared to solutions like Aerospike. However, it is justified because of the out-of-the-box features that are provided. The availability and resiliency that we have make it worth the price."
"Cosmos DB's pricing structure has significantly improved in recent months, both in terms of its pricing model and how charges are calculated."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Manufacturing Company
13%
Educational Organization
11%
Computer Software Company
9%
Outsourcing Company
11%
Financial Services Firm
11%
Legal Firm
10%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business35
Midsize Enterprise24
Large Enterprise59
 

Questions from the Community

What needs improvement with Amazon Timestream?
We are working on a few open change requests with the engineering teams on AWS's side. There are certain features that we would like to see added and we are collaborating with the product teams on ...
What is your primary use case for Amazon Timestream?
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-base...
What advice do you have for others considering Amazon Timestream?
I would absolutely recommend Amazon Timestream to others. I'd rate the solution ten out of ten.
What is your experience regarding pricing and costs for Microsoft Azure Cosmos DB?
I have knowledge about the pricing, setup cost, and licensing aspect of Microsoft Azure Cosmos DB.
What needs improvement with Microsoft Azure Cosmos DB?
One thing which has troubled us is the cost model for Microsoft Azure Cosmos DB. It is comparatively very difficult to understand. Sometimes without any efficiency, the cost increases. The cost mod...
What is your primary use case for Microsoft Azure Cosmos DB?
I have been working with Microsoft Azure Cosmos DB for two years, and I have been working with the Azure ecosystem for four to five years.We use Microsoft Azure Cosmos DB because it provides a scal...
 

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.
914,805 professionals have used our research since 2012.