Amazon S3 vs Microsoft Azure Object Storage vs Oracle Cloud Object Storage comparison

Amazon Web Services (AWS) and Microsoft are both solutions in the Public Cloud Storage Services category. Amazon Web Services (AWS) is ranked #2 with an average rating of 8.7, while Microsoft is ranked #9 with an average rating of 7.8. Amazon Web Services (AWS) holds a 11.5% mindshare in PCSS, compared to Microsoft’s 1.9% mindshare. Additionally, 98% of Amazon Web Services (AWS) users are willing to recommend the solution, compared to 87% of Microsoft users who would recommend it.

Amazon S3

Read 82 Amazon S3 reviews

5,148 Views
2,759 Comparison Views

98% willing to recommend

Microsoft Azure Object Storage

Read 52 Microsoft Azure Object Storage reviews

541 Views
453 Comparison Views

87% willing to recommend

Oracle Cloud Object Storage

Read 6 Oracle Cloud Object Storage reviews

956 Views
856 Comparison Views

100% willing to recommend

Amazon S3

Microsoft Azure Object Storage

Oracle Cloud Object Storage

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between Amazon S3, Microsoft Azure Object Storage, and Oracle Cloud Object Storage based on real PeerSpot user reviews.

Find out what your peers are saying about Amazon Web Services (AWS), Google, Microsoft and others in Public Cloud Storage Services.

To learn more, read our detailed Public Cloud Storage Services Report (Updated: March 2025).

Buyer's Guide

Public Cloud Storage Services

March 2025

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Helped 849,963 peers since 2012

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 2025, in the Public Cloud Storage Services category, the mindshare of Amazon S3 is 11.5%, down from 13.9% compared to the previous year. The mindshare of Microsoft Azure Object Storage is 1.9%, down from 2.3% compared to the previous year. The mindshare of Oracle Cloud Object Storage is 3.9%, down from 4.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Public Cloud Storage Services

Featured Reviews

Vagner Martins

Information Security Analyst at a financial services firm with 201-500 employees

Enhanced data security with seamless integration and static website capabilities

S3 is a great service offering numerous possibilities. It allows for storing objects and files of various types. I appreciate its capability to create static websites and integrate with services like CloudFront, EC2, and DynamoDB. Despite being focused on security, I leverage features such as cryptography and integration with CloudTrail.

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Akram Zabat

Consultant - Architecture Solution at Onepoint

Provides versatile data storage solutions with a simple setup and easy to use

It's similar to S3 for AWS. The ability to store everything inside Blob or Object storage and use it for archiving data is beneficial. For example, you can transform data from relational databases, flatten it, and store it in Object storage to save space within the databases. If I want to save data and do not require legacy access, it's a good solution, for instance, to migrate archives from databases to Object storage. This can also be used for business intelligence purposes. Having a storage solution for data makes it the best place to store it. Azure has its own solution for StatsQ Web Apps.

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PriyankShrivastava

Sr Quality Engineer at Accenture

A workhorse that enables high availability but support has room for improvement

There is always room for improvement. When a product is marketed, many claims are made, but in reality, it does not always perform as expected. The usability and real-time capabilities could be enhanced. The product can be difficult to use compared to how it is marketed. Technical support also lacks a timely response.

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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 most valuable feature of the solution stems from the fact that I mostly used the tool's free tier version, so I like the fact that its cost is very low."

"Amazon S3's best features are its reliability and capacity to expand."

"The main aspect we like is that it's been easy to use."

"Amazon S3 is very stable, and I have never had any performance issues."

"The most valuable feature of Amazon S3 is its flexibility as a solution to suit many different use cases."

"Amazon S3 is a storage bucket service with good stability."

"The multi-zone replication is great."

"The most valuable feature of Amazon S3 is storage, which provides a personal capacity."

More Amazon S3 pros

"Microsoft Azure Object Storage is an easy-to-use and stable solution."

"Microsoft Azure Object Storage provides a platform for uploading or downloading big datasets."

"Azure cloud services are quite an easy solution with many tools to operate, such as the CLI, software development kit, and the portal."

"This product is very reliable and all of the security that our client requires is available."

"The key feature for us is the possibility to have a copy of our data and machines outside of our premises just in case of a disaster."

"It's easy to use."

"The solution integrates well with Microsoft Office 365 and includes important features such as SIEM, storage, SQL, and Cosmos DB."

"It has helped with data management."

More Microsoft Azure Object Storage pros

"The most valuable features of the tool are scalability and security."

"The technical support for the solution was very nice."

"Oracle Cloud Object Storage is valuable for storing unstructured data, such as text documents and word documents."

"One key feature is that you can make buckets private, requiring pre-authentication and using a specific URL for access. Additionally, the buckets are encrypted by default. The flexibility of public or private buckets and how you grant access are vital security features."

"It is stable, requires high availability, and works with large datasets seamlessly."

"We use it mostly in the cloud. It is stable, requires high availability, and works with large datasets seamlessly."

"The solution's most valuable features are its speed, unlimited space, and simplicity of use."

Cons

"We need the mapping to Windows. That feature is needed in S3. That feature is in the Azure cloud where we can map it like a drive. We can map the cloud storage to the effort driving our Windows PC. But Amazon is not providing that feature for the S3 solution."

"There is a limitation with the data upload size, such as the five terabytes restriction. I would like to see an increase in the data upload limit, similar to DynamoDB, where there is no data limit."

"Sometimes, there is latency in getting data, especially if the file size is large."

"The upload speed for data and documents is sometimes slow."

"The console could be improved - it's not very user friendly for non-technical guys."

"The security model can be improved as it is a bit confusing."

"Enhancements in security features might be beneficial."

"It could maybe use more integration."

More Amazon S3 cons

"The stability could be improved."

"The initial setup could be more straightforward. It would be best if you had a little bit of training or an understanding of the concepts. It's important because if you don't do that, then you might end up not following the best practices. Then you will learn it the hard way by making mistakes and then know that you shouldn't have done this or that. It's better to attend workshops and take a hands-on approach."

"The tool doesn't offer Microsoft Copilot and Microsoft AI."

"Our current Azure setup faces challenges with API connectivity, particularly due to misconfigurations related to changes in Azure Graph."

"Microsoft Azure Object Storage needs to improve stability and cloud user interface."

"In future releases, I would add something like a better lifecycle management system, and for integration purposes, I would add some stuff related to newer concepts like data products and databases. I would like to have a seamless flow between those things."

"We would like it if we did not have to use another encryption solution to encrypt the storage."

"Its user interface could be better."

More Microsoft Azure Object Storage cons

"I could not find a load balancer in OCI similar to the support provided by Microsoft Azure and AWS."

"Oracle Cloud Object Storage needs to have an additional bucket for security."

"Cost-wise, it is not an affordable tool if you allocate space, and try to use it some other day."

"The product can be difficult to use compared to how it is marketed. Technical support also lacks a timely response."

"The usability and real-time capabilities could be enhanced."

"Sometimes, there are glitches with applying policies. Even when the policy is correct, it might not work consistently. We need to troubleshoot to see if it's a user error or if the policy itself needs adjustment. It usually works after refreshing, but that inconsistency is a minor complexity."

"The solution should provide more customization and the possibility of doing more manual tasks."

Pricing and Cost Advice

"The cost of Amazon S3 is low. For R & D purposes there is a free option available. There is a license needed to use the solution."

"There is a license to use Amazon S3."

"The price of Amazon S3 could be less expensive."

"The solution is very inexpensive at 50 cents per gigabyte, per month."

"The tool is not too expensive considering the various pros."

"With S3 Standard, there is not a charge for deletion of objects."

"The price is okay."

"The cost varies based on the type of subscription you chose."

More Amazon S3 pricing and cost advice

"Microsoft Azure Object Storage requires a license. We are using a pay-as-you-go model and we have an enterprise subscription model as well."

"Object Storage is competitively priced."

"We have a separate package and pay extra for additional technical support."

"The solution is not affordable for small businesses."

"Microsoft Azure Object Storage is not expensive."

"Pricing is always confusing for all Microsoft products. For this solution, they do provide the estimates, but it is not easy to guess the exact amount that we will be billed."

"The cost of this solution is high compared to others, although there are no costs in addition to the standard licensing fees."

"The tool has a pay-per-use pricing model...There is no need to pay extra money for the licensing costs since the price is based on the storage you consume."

More Microsoft Azure Object Storage pricing and cost advice

"Oracle Cloud Object Storage might not be that expensive compared to on-premises solutions."

"We have a yearly subscription for the product."

"During the billing cycle, if I use the tool only for a day, I still need to pay you for a month."

"Disaster recovery (DR) can be expensive."

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Top Industries

By visitors reading reviews

Educational Organization

75%

Computer Software Company

Financial Services Firm

Manufacturing Company

Computer Software Company

23%

Manufacturing Company

13%

Retailer

12%

Real Estate/Law Firm

Computer Software Company

18%

Manufacturing Company

11%

Financial Services Firm

11%

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

What do you like most about Amazon S3?

We can easily connect to the AWS resources.

See all answers

What is your experience regarding pricing and costs for Amazon S3?

S3 is a pay-as-you-go service. I pay based on the data volume I am using.

See all answers

What needs improvement with Amazon S3?

There is a limitation with the data upload size, such as the five terabytes restriction. I would like to see an incre...

See all answers

What do you like most about Microsoft Azure Object Storage?

The layout of Microsoft is professional.

See all answers

What is your experience regarding pricing and costs for Microsoft Azure Object Storage?

I can't share a lot about the costs. I am focused on the technical aspect. It's a pay-per-use solution and a good ide...

See all answers

What needs improvement with Microsoft Azure Object Storage?

In terms of compliance and security, everything is fine. I do not know of any immediate needs for improvement. Howeve...

See all answers

What do you like most about Oracle Cloud Object Storage?

The solution's most valuable features are its speed, unlimited space, and simplicity of use.

See all answers

What is your experience regarding pricing and costs for Oracle Cloud Object Storage?

It is an expensive product. We do not use a monthly plan; instead, we opt for a quarterly or semi-annual licensing mo...

See all answers

What needs improvement with Oracle Cloud Object Storage?

There is always room for improvement. When a product is marketed, many claims are made, but in reality, it does not a...

See all answers

Comparisons

NetApp Cloud Volumes ONTAP vs Amazon S3

Compared 20% of the time

Google Cloud Storage vs Amazon S3

Compared 13% of the time

Microsoft Azure File Storage vs Amazon S3

Compared 12% of the time

Rackspace Cloud Files vs Amazon S3

Compared 7% of the time

Amazon S3 Glacier vs Amazon S3

Compared 4% of the time

More Amazon S3 Competitors

Nutanix Unified Storage (NUS) vs Microsoft Azure Object Storage

Compared 14% of the time

More Microsoft Azure Object Storage Competitors

Oracle Database Backup Service vs Oracle Cloud Object Storage

Compared 11% of the time

NetApp Cloud Volumes ONTAP vs Oracle Cloud Object Storage

Compared 10% of the time

Google Cloud Storage vs Oracle Cloud Object Storage

Compared 9% of the time

Amazon EFS (Elastic File System) vs Oracle Cloud Object Storage

Compared 6% of the time

More Oracle Cloud Object Storage Competitors

Product Reports

Buyer's Guide

Amazon S3

April 2025

Download Amazon S3 product report

Buyer's Guide

Microsoft Azure Object Storage

April 2025

Download Microsoft Azure Object Storage product report

Buyer's Guide

Public Cloud Storage Services

March 2025

Download Oracle Cloud Object Storage product report

Also Known As

S3, Simple Storage Service

Microsoft Azure Blob Storage, Azure Object Storage, MS Azure Object Storage

No data available

Overview

Amazon Simple Storage Service is storage for the Internet. It is designed to make web-scale computing easier for developers.

Amazon S3 has a simple web services interface that you can use to store and retrieve any amount of data, at any time, from anywhere on the web. It gives any developer access to the same highly scalable, reliable, fast, inexpensive data storage infrastructure that Amazon uses to run its own global network of web sites. The service aims to maximize benefits of scale and to pass those benefits on to developers.

Amazon Web Services (AWS)

REST-based object storage for unstructured data in the cloud

Store infrequently accessed data in a low-cost cool storage tier
Store frequently accessed application data in a hot storage tier
Stream video, audio, and other media to web, mobile, or desktop applications
Power big data analytics
Access your data more securely, both over the wire and at rest

Microsoft

Scale with no new hardware - eliminates new capital expenditures, opens up data center space and reduces power and cooling requirements.

Elastic storage - shared infrastructure allows for infinite scalability. Eliminates forecasting and long procurement cycles.

Pay as you go and subscription models - purchase capacity with no commitment or reduce costs with longer-term agreements

Simple to manage industry standard OpenStack and RESTful APIs streamline management integration, freeing resources to accelerate other cloud projects.

Oracle

Sample Customers

Netflix, Airbnb, Thomson Reuters, Zillow, Alert Logic

Umbraco, Xbox, Radioshack, 343 Industries, McKesson

Brinks

Buyer's Guide

Public Cloud Storage Services

March 2025

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Find out what your peers are saying about Amazon Web Services (AWS), Google, Microsoft and others in Public Cloud Storage Services. Updated: March 2025.

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