Couchbase Capella vs Microsoft Azure Cosmos DB comparison

Couchbase and Microsoft are both solutions in the Database as a Service (DBaaS) category. Couchbase is ranked #15 with an average rating of 7.5, while Microsoft is ranked #4 with an average rating of 8.3. Couchbase holds a 1.4% mindshare in DS, compared to Microsoft’s 4.1% mindshare. Additionally, 100% of Couchbase users are willing to recommend the solution, compared to 95% of Microsoft users who would recommend it.

Couchbase Capella

Read 2 Couchbase Capella reviews

463 Views
245 Comparison Views

100% willing to recommend

Microsoft Azure Cosmos DB

Read 109 Microsoft Azure Cosmos DB reviews

9,934 Views
1,291 Comparison Views

95% willing to recommend

Couchbase Capella

Microsoft Azure Cosmos DB

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Executive SummaryUpdated on Jan 25, 2026

Microsoft Azure Cosmos DB and Couchbase Capella are both competing database solutions offering global distribution and flexible scalability. Microsoft Azure Cosmos DB is more appealing due to its robust support and diverse pricing options, while Couchbase Capella stands out with feature-rich offerings that rate highly in value for cost.

Features: Microsoft Azure Cosmos DB provides automatic scaling, global distribution, and support for multiple APIs, ensuring high versatility. Couchbase Capella offers edge capabilities with in-memory data processing and excellent data synchronization, delivering advantages in workloads benefiting from extensive edge computing capabilities.

Ease of Deployment and Customer Service: Microsoft Azure Cosmos DB integrates seamlessly within the Azure ecosystem, simplifying deployment for users of Microsoft services. It is known for reliable customer support. Couchbase Capella supports straightforward deployment, particularly for hybrid on-premise and cloud environments, with strong support backed by comprehensive documentation, granting flexibility in hybrid setups.

Pricing and ROI: Microsoft Azure Cosmos DB presents a wide range of pricing options offering good ROI, especially for businesses invested in the Azure ecosystem. Couchbase Capella can have higher initial setup costs but demonstrates strong ROI through efficient data handling and feature depth, providing significant long-term benefits. Its cost-effectiveness is justified for those needing specialized capabilities.

To learn more, read our detailed Couchbase Capella vs. Microsoft Azure Cosmos DB Report (Updated: December 2025).

Buyer's Guide

Couchbase Capella vs. Microsoft Azure Cosmos DB

December 2025

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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

Couchbase Capella

Ranking in Database as a Service (DBaaS)

15th

Average Rating

7.6

Reviews Sentiment

7.5

Number of Reviews

Ranking in other categories

AI Data Analysis (18th)

Microsoft Azure Cosmos DB

Ranking in Database as a Service (DBaaS)

4th

Average Rating

8.2

Reviews Sentiment

6.9

Number of Reviews

109

Ranking in other categories

NoSQL Databases (2nd), Managed NoSQL Databases (1st), Vector Databases (1st)

Mindshare comparison

As of January 2026, in the Database as a Service (DBaaS) category, the mindshare of Couchbase Capella is 1.4%, up from 0.4% compared to the previous year. The mindshare of Microsoft Azure Cosmos DB is 4.1%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Database as a Service (DBaaS) Market Share Distribution
Product	Market Share (%)
Microsoft Azure Cosmos DB	4.1%
Couchbase Capella	1.4%
Other	94.5%

Database as a Service (DBaaS)

Featured Reviews

SupriyaKulkarni

Devops Specialist at Amdocs

Good GUI, easy to learn, and simple to install

The architecture is complex. I do understand that. However, the GUI is very user-friendly. Sometimes all these things are a little difficult to understand for a person who is not experienced in Couchbase. There is a constant requirement to upgrade the versions. We need to constantly keep on upgrading the latest version for the newest one. Currently, we are dealing with an issue where some of the servers are on the 6.5 version, and a few have moved to 7.5. So we are in a mixed mode right now. We are having a high IO issue on our servers, which we are already dealing with. We have these cases with Couchbase, with Red Hat, et cetera. We feel like this constant need to upgrade is something that is very mundane yet a very difficult task. If you have three clusters, which have around thirty nodes, the data is quite sensitive. Whenever there is Couchbase upgrade that is going on, we see that our SR is dropped. The purchase rate and success rate drop. This affects our business and the clients. Rebalancing could be improved. I find it to be a very slow process when it comes to rebalancing the clusters. If you talk about other architectures like Oracle, they are pretty fast. Couchbase is a little slower. Rebalancing, taking the node out, doing the upgrade, putting it back, rebalancing it, is a very difficult and cumbersome. For Oracle, we have been running on version 19.5 for the past five years. There were absolutely no issues. Yet for Couchbase, every six months, we have to go do the upgrade.

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reviewer2724105

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.

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Quotes from Members

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

Pros

"The initial setup was straightforward."

"The way the nodes are managed is interesting."

"Azure Cosmos DB's resiliency is valuable. It is available in every Azure region, allowing quick information storage and retrieval. We can partition it to improve indexing, enabling us to retrieve information and recreate website content quickly."

"The solution is used because we get faster response times with large data sets than with SQL. It's essential for us because we have half a billion rows, and we need to return them quickly."

"The most valuable features for our organization with Azure Cosmos DB are multi-master capability for applications, automatic failover ensuring high availability, scalability, support for multiple data models, and low-latency access."

"Latency and availability are incredible."

"Azure Cosmos DB offers efficient indexing and low search latency, making searching fast and efficient and ensuring peace of mind in database operations."

"Cosmos DB is a document database that stores data in JSON format for faster retrieval of unstructured data. I personally appreciate the speed, which is significantly better for unstructured data, especially since Cosmos DB had JSON as a data type early on."

"The most valuable features of Microsoft Azure Cosmos DB were the general infrastructure, ease to use, and interface."

"Azure Cosmos DB helped improve the quality of our search results."

More Microsoft Azure Cosmos DB pros

Cons

"Rebalancing could be improved."

"The product could be improved by including a log section for tracking activities, enhancing database integration, and providing more transparency regarding pricing and monitoring activities."

"Our use case was a failure with Microsoft Azure Cosmos DB, and we do not have any other opportunity to use Microsoft Azure Cosmos DB."

"Microsoft Azure Cosmos DB can be improved by providing more fine-grained control over certain aspects, such as connections and threads. There could be more control over how many connections are made."

"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."

"The RUs still appear to be a black box for everyone. Even though they explain read and write RUs, it remains unclear for many users."

"There is room for improvement in terms of stability."

"I would give a low rating to Microsoft support, as whenever I talked to them, I never got a solution. I had to guide them."

"Areas of improvement for Microsoft Azure Cosmos DB include indexing. While it makes data retrieval easier, it also increases costs."

"Sometimes, the solution's access request takes time, which should be improved."

More Microsoft Azure Cosmos DB cons

Pricing and Cost Advice

Information not available

"Its price is very good for the basic stuff. When you go to a more complicated use case, especially when you need replication and availability zones, it gets a little costly."

"Its pricing is not bad. It is good."

"Cosmos should be cheaper. We actually intend to stop using it in the near future because the price is too high."

"Because of the lack of understanding about RUs, the costs become unpredictable. It sometimes goes over the budget."

"The pricing is perceived as being on the higher side. However, if you have large data operations, it might reduce costs due to performance efficiencies."

"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."

"It is expensive. The moment you have high availability options and they are mixed with the type of multitenant architecture you use, the pricing is on the higher end."

"Right now, I have opted for the student subscription plan, for which Microsoft charges me around 100 USD. The pricing of the solution depends on the solution's usage."

More Microsoft Azure Cosmos DB pricing and cost advice

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Top Industries

By visitors reading reviews

No data available

Legal Firm

13%

Financial Services Firm

11%

Comms Service Provider

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	33
Midsize Enterprise	21
Large Enterprise	58

Questions from the Community

What needs improvement with Couchbase Capella?

See all answers

What is your primary use case for Couchbase Capella?

The solution is basically used to support our ordering system, which generates a huge number of orders for our customers.

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What advice do you have for others considering Couchbase Capella?

We are Counchbase customers. Depending on your application, it is good to use Couchbase where you have high OLTP systems where you know there will be constant data loading, deleting, et cetera, hap...

See all answers

What do you like most about Microsoft Azure Cosmos DB?

The initial setup is simple and straightforward. You can set up a Cosmos DB in a day, even configuring things like availability zones around the world.

See all answers

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 to, which helps a lot. Microsoft Azure Cosmos DB's dynamic auto-scale or server...

See all answers

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 position to decide if clients will use Microsoft Azure Cosmos DB or any other datab...

See all answers

Comparisons

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Compared 32% of the time

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Compared 29% of the time

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Compared 22% of the time

MongoDB Atlas vs Couchbase Capella

Compared 17% of the time

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Compared 6% of the time

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Compared 6% of the time

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Product Reports

Buyer's Guide

Database as a Service (DBaaS)

January 2026

Download Couchbase Capella product report

Buyer's Guide

Microsoft Azure Cosmos DB

January 2026

Download Microsoft Azure Cosmos DB product report

Also Known As

No data available

Microsoft Azure DocumentDB, MS Azure Cosmos DB

Interactive Demo

Couchbase

Demo not available

Microsoft

Overview

Couchbase Capella is a fully managed NoSQL DBaaS designed for optimal cloud-native performance. It integrates high-speed and flexible JSON applications with real-time analytics, supporting billion-scale vector search.

This platform is tailored for cloud environments, offering enhanced operational efficiency. It supports trusted mobile NoSQL for always-on apps and real-time JSON-native analytics without ETL processes. Couchbase Capella is unique in managing the complete data lifecycle for RAG and agentic systems, providing contextual memory and response validation, facilitating quick and cost-effective development of AI-driven applications.

What are the standout features of Couchbase Capella?

Fully Managed DBaaS: Removes the complexity of database management with automated processes.
Cloud-Native Performance: Optimizes speed and flexibility for internet applications.
JSON Application Support: Facilitates fast and flexible deployment of JSON-based applications.
Billion-Scale Vector Search: Handles extensive data searches efficiently.
Mobile NoSQL Integration: Ensures seamless offline capabilities for mobile apps.
Real-Time Analytics: Provides instant insights without the need for ETL.

What benefits or ROI should you seek in reviews for Couchbase Capella?

Cost-Effectiveness: Offers competitive pricing with high performance.
Operational Efficiency: Minimizes manual database management needs.
Scalability: Easily adapts to growing datasets and application demands.
Flexibility: Supports a variety of use cases with its versatile structure.
Security: Prioritizes data protection and privacy.

In healthcare, Couchbase Capella aids in managing vast amounts of patient data with real-time analytics, ensuring fast application performance for critical decision-making. In retail, it enhances customer experiences through personalized recommendations and dynamic inventory management, while in finance, it supports secure, agile processing of transactions and fraud detection.

Couchbase

Microsoft Azure Cosmos DB offers scalable, geo-replicated, multi-model support with high performance and low latency. It provides seamless Microsoft service integration, benefiting those needing flexible NoSQL, real-time analytics, and automatic scaling for diverse data types and quick global access.

Azure Cosmos DB is designed to store, manage, and query large volumes of both unstructured and structured data. Its NoSQL capabilities and global distribution are leveraged by organizations to support activities like IoT data management, business intelligence, and backend databases for web and mobile applications. While its robust security measures and availability are strengths, there are areas for improvement such as query complexity, integration with services like Databricks and MongoDB, documentation clarity, and performance issues. Enhancements in real-time analytics, API compatibility, cross-container joins, and indexing capabilities are sought after. Cost management, optimization tools, and better support for local development also require attention, as do improvements in user interface and advanced AI integration.

What are the key features of Azure Cosmos DB?

Scalability: Effortlessly handles scaling for large workloads.
Geo-replication: Provides global data access with low latency.
Multi-model Support: Compatible with diverse data types.
NoSQL Flexibility: Offers a non-relational database experience.
Real-time Analytics: Facilitates data-driven decision-making.
Automation: Simplifies scaling and maintenance processes.

What benefits can users expect from Cosmos DB?

High Performance: Ensures rapid processing and low latency.
Ease of Use: Features a user-friendly interface enhancing deployment speed.
Seamless Integration: Connects effortlessly with Microsoft services.
Security: Offers robust measures to protect data integrity.
Consistent Availability: Ensures continuous access to data worldwide.

Industries use Azure Cosmos DB to support business intelligence and IoT data management, using its capabilities for backend databases in web and mobile applications. The platform's scalability and real-time analytics benefit sectors like finance, healthcare, and retail, where managing diverse datasets efficiently is critical.

Microsoft

Sample Customers

Information Not Available

TomTom, KPMG Australia, Bosch, ASOS, Mercedes Benz, NBA, Zero Friction, Nederlandse Spoorwegen, Kinectify

Buyer's Guide

Couchbase Capella vs. Microsoft Azure Cosmos DB

December 2025

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