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Amazon DynamoDB vs Google Cloud Bigtable vs Microsoft Azure Cosmos DB comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

Mindshare comparison

As of May 2026, in the Managed NoSQL Databases category, the mindshare of Amazon DynamoDB is 10.6%, down from 16.6% compared to the previous year. The mindshare of Google Cloud Bigtable is 5.9%, up from 5.0% compared to the previous year. The mindshare of Microsoft Azure Cosmos DB is 15.7%, down from 16.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Managed NoSQL Databases Mindshare Distribution
ProductMindshare (%)
Microsoft Azure Cosmos DB15.7%
Amazon DynamoDB10.6%
Google Cloud Bigtable5.9%
Other67.80000000000001%
Managed NoSQL Databases
 

Featured Reviews

DG
Lead SRE at JavaTech
Has improved infrastructure availability and simplified integration through reliable cloud-based data management
Amazon DynamoDB is readily available, and we do not have to worry about downtime unless there is a global outage. From a cost perspective, it presents a challenge. The primary feature is constant availability without concerns about server maintenance or ensuring database uptime, as AWS manages everything from their end. We simply set up the database and allocate it to customers according to their requirements, making it an easy and smooth transition. Regarding security, being in the cloud provides numerous security features. Amazon DynamoDB operates at the backend within our three-tier architecture. We have front hosting, business logic or application server in the middle, and databases at the backend. Additionally, we implement security layers such as SSL, creating a highly secure environment. The solution has proven to be reliable thus far.
AS
Team Lead at a financial services firm with 5,001-10,000 employees
Consistent performance and seamless cloud integration enhance analytics capabilities while reducing management complexity
One point for improvement in Google Cloud Bigtable is that people have confusion in mapping. There are many similar products available, and Google has managed services for similar products as well. It would be easier if the journey of knowing when to use Google Cloud Bigtable versus other Cloud SQL and alternates such as Cloud Spanner is made clearer for users. Regarding additional functionality for Google Cloud Bigtable, I am uncertain if LLMs can be integrated or if Google Cloud Bigtable can act as a vector store for LLM-specific use cases where we are interacting or using generative AI capabilities.
reviewer2724105 - PeerSpot reviewer
Senior Director of Product Management at a tech vendor with 1,001-5,000 employees
Provides super sharp latency, excellent availability, and the ability to effectively manage costs across different tenants
For integrating Microsoft Azure Cosmos DB with other Azure products or other products, there are a couple of challenges with the current system. Right now, the vectors are stored as floating-point numbers within the NoSQL document, which makes them inefficiently large. This leads to increased storage space requirements, and searching through a vast number of documents in the vector database becomes quite costly in terms of RUs. While the integration works well, the expense associated with it is relatively high. I would really like to see a reduction in costs for their vector search, as it is currently on the expensive side. The areas for improvement in Microsoft Azure Cosmos DB are vector pricing and vector indexing patterns, which are unintuitive and not well described. I would also like to see the parameters of Fleet Spaces made more powerful, as currently, it's somewhat lightweight. I believe they've made those changes intentionally to better understand the cost model. However, we would like to take a more aggressive approach in using it. One of the most frustrating aspects of Microsoft Azure Cosmos DB right now is that you can only store one vector per document. Additionally, you must specify the configuration of that vector when you create an instance of Microsoft Azure Cosmos DB. Once the database is set up, you can't change the vector configuration, which is incredibly limiting for experimentation. You want the ability to try different settings and see how they perform, as there are numerous use cases for storing more than one vector in a document. While interoperability within the vector database is acceptable—for example, I can search for vectors—I still desire a richer set of configuration options.

Quotes from Members

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

Pros

"It is a NoSQL product."
"The most valuable features are the flexibility and the compatibility options without needing to use any additional services or software, as it is an independent solution that doesn't need other solutions to operate."
"The fact that it is so easy to create tables and provision for known throughput saved us a lot of time, especially because we are deploying multiple environments and multiple regions."
"Amazon DynamoDB is easy to use because of its nature of scaling and IO, and everything is very fast."
"Stability-wise, I rate the solution a ten out of ten. I've never faced any problems."
"The solution is very simple to use."
"Accessing speed is very fast."
"The ability to store multiple data attributes is crucial. For example, in a contact flow, if a customer calls, we can integrate DynamoDB dynamically. We need only the customer's mobile number as the primary key, which is stored in the DynamoDB table."
"This solution is much more scalable than more traditional databases - at least the ones we are aware of."
"Bigtable is very user-friendly where streaming data is required."
"Scalability-wise, I rate the solution a ten out of ten."
"Bigtable is faster than other competitors in the market. It helps us collate all the data, and the security features are great. The latency is low, and the computation speed is fantastic. Bigtable is also a managed service, so you don't have to worry about anything aside from analyzing the data ingested."
"It's very user-friendly where streaming data is required."
"The main benefit I receive from Google Cloud Bigtable is the managed service part."
"If you have a lot of data, it's really scalable and it's competitive."
"I like the drive and the support of this program."
"The customer gave us the feedback that they are able to easily find the data they are looking for. It is very quick."
"We have both our SaaS app and the analytical side running without throttling issues."
"Scaling the workloads is one of the key advantages of Cosmos, preventing the database from becoming a performance bottleneck."
"We love the ability to land data with Cosmos DB easily. Cosmos is native to Azure, so everything works seamlessly with it. You need good data to have good AI, and Cosmos makes it easy to land the data."
"The fact that scalability can be achieved by simply configuring availability zones is very attractive."
"Its wide support to the ecosystem is valuable, we can use this database with a lot of use cases, and that's one of the reasons why we prefer it."
"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."
"The most valuable feature of Microsoft Azure Cosmos DB is its real-time analytics capabilities, which allow for turnaround times in milliseconds."
 

Cons

"Amazon DynamoDB has a very complex configuration if you go very advanced."
"There are some issues, like if we missed something or somehow were not able to store the data, then it was quite difficult for us to get back that data."
"If the database is kept running continuously, extra costs will be incurred. This particular area needs enhancement."
"Currently, there is no option for a scheduled refresh in this solution. We want the data to be populated into DynamoDB on a timely basis. Currently, you have to go to the DynamoDB table and hit the refresh button to populate it with the new data. If you have connected DynamoDB to a BI application for creating visualizations with charts, graphs, or other things, you would want it to get updated as per the schedule so that you have updated visualizations in your BI application."
"The solution would work fast if a contact center is in the same region."
"I would rate customer service as seven because the process we must follow can be lengthy. Sometimes we cannot connect with the correct team to resolve issues."
"The solution's efficiency and performance should be faster than other databases."
"I'd like to see better integration with Cognito. It has the integration, but I'd like to see a little more ease of setup."
"The program is rather expensive - it depends on the size of your data."
"I've used Bigtable for about three or four years."
"The pricing of the solution needs to be improved."
"The cost of this product is too expensive."
"It would be nice if the pay-as-you-go license were a little cheaper."
"This product needs better security and transparency, and the price should be reduced."
"This product needs better security and transparency, and the price should be reduced."
"The pricing of the solution needs to be improved."
"The price of Microsoft Azure Cosmos DB could be a bit lower."
"There are no specific areas I believe need improvement as I am happy with what I am getting currently. However, I am open to new features in future versions, like possibly integrating AI features natively into Cosmos DB. Any improvement would be beneficial."
"The integration of the on-premise solution with the cloud can be difficult sometimes."
"It should offer a simple user interface for querying Microsoft Azure Cosmos DB."
"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."
"Microsoft Azure Cosmos DB's performance could be better. In large volumes of documents, the querying process becomes slow and complicated."
"Azure Cosmos DB could be better for business intelligence and analytical queries."
"There are some disadvantages as it is costly compared to other NoSQL databases. It has a complex pricing model and has a strict partitioning strategy."
 

Pricing and Cost Advice

"Amazon DynamoDB is cheap."
"I would rate the pricing for this solution a four out of five."
"We previously paid around $20,000 a month for MongoDB, and now we're paying just $4,000 monthly for Amazon DynamoDB."
"You can get committed capacity or transaction-based pricing. If you're doing it on demand, they charge based on whether you're reading or writing. They charge $1.25 for every million rights to the database and 25 cents for every million reads from the database. The first 25 gigabytes of storage are free, and they charge 25 cents a gigabyte a month. So, it's a very different world. It's a quarter a gigabyte a month. You can store a lot of data. They have a separate fee for automated backup, and if you want it globally distributed, where it's distributed around the world, there's a slightly different price."
"I can say that it is not the cheapest one because if we had our own kind of storage solution, our own hosting, and instead of using the cloud, we opted for some other method, it would have been a tool of a lower cost."
"Compared to a high-end relational database, it's cheap."
"The product is expensive"
"It is costly. To reduce the costs, users need to read the node in front of it. For read-heavy groups, cache optimization can help manage costs.I can't disclose specific pricing, but it's competitive compared to others in the market, and this information is easily accessible online"
"I would like to see better pricing. It is not too expensive, but it isn't cheap either."
"The pricing for Cosmos DB has improved, particularly with the new pricing for Autoscale."
"The cost is the biggest limitation of this solution."
"From a startup point of view, it appears to be expensive. If I were to create my startup, it would not have the pricing appeal compared to the competition, such as Supabase. All those other databases are well-advertised by communities. I know there is a free tier with Azure Cosmos DB. It is just not well advertised."
"Everything could always be cheaper. I like that Cosmos DB allows us to auto-scale instead of pre-provisioning a certain capacity. It automatically scales to the demand, so we only pay for what we consume."
"It's expensive. I would rate it a seven out of ten for pricing."
"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 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."
"The solution is very expensive."
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Top Industries

By visitors reading reviews
Financial Services Firm
18%
Computer Software Company
10%
Comms Service Provider
8%
Manufacturing Company
8%
Financial Services Firm
14%
Manufacturing Company
10%
Comms Service Provider
8%
Computer Software Company
7%
Financial Services Firm
12%
Legal Firm
11%
Comms Service Provider
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise2
Large Enterprise19
By reviewers
Company SizeCount
Small Business6
Large Enterprise4
By reviewers
Company SizeCount
Small Business33
Midsize Enterprise22
Large Enterprise58
 

Questions from the Community

What needs improvement with Amazon DynamoDB?
The only challenge I face with Amazon DynamoDB is that with the partition key and secondary key, the query doesn't be...
What is your primary use case for Amazon DynamoDB?
Our main use case for Amazon DynamoDB is storing quick metadata information about any of the image artifacts that we ...
What advice do you have for others considering Amazon DynamoDB?
Amazon's documentation is the best documentation I've ever had. Generally, I go for LLM support, but AWS has very goo...
What needs improvement with Google Cloud Bigtable?
One point for improvement in Google Cloud Bigtable is that people have confusion in mapping. There are many similar p...
What is your primary use case for Google Cloud Bigtable?
My main use case for Google Cloud Bigtable is mainly for advertisement-related analytics-related use cases.
What advice do you have for others considering Google Cloud Bigtable?
Regarding integration with Google Cloud Bigtable and other Google Cloud services such as Dataflow, Dataproc, and BigQ...
What is your experience regarding pricing and costs for Microsoft Azure Cosmos DB?
Microsoft Azure Cosmos DB's pricing model has aligned with my budget expectations because I can tune the RU as I need...
What needs improvement with Microsoft Azure Cosmos DB?
I have not utilized Microsoft Azure Cosmos DB multi-model support for handling diverse data types. I'm not in the pos...
What is your primary use case for Microsoft Azure Cosmos DB?
We have a very large team of developers who develop a solution for our customers. In the part where they need some in...
 

Also Known As

No data available
Google BigTable, BigTable
Microsoft Azure DocumentDB, MS Azure Cosmos DB
 

Overview

 

Sample Customers

Samsung, Snapchat, Capital One, Expedia, Tinder, Airbnb, Comcast, Lyft, Redfin, Netflix, Adobe
Cognite, Dow Jones, Loblaw Digital
TomTom, KPMG Australia, Bosch, ASOS, Mercedes Benz, NBA, Zero Friction, Nederlandse Spoorwegen, Kinectify
Find out what your peers are saying about Microsoft, Amazon Web Services (AWS), MongoDB and others in Managed NoSQL Databases. Updated: April 2026.
896,099 professionals have used our research since 2012.