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Amazon S3 vs Microsoft Azure 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 8.8, while Microsoft is ranked #12 with an average rating of 7.8. Amazon Web Services (AWS) holds a 14.1% mindshare in PCSS, compared to Microsoft’s 2.4% mindshare. Additionally, 98% of Amazon Web Services (AWS) users are willing to recommend the solution, compared to 88% of Microsoft users who would recommend it.
Amazon S3
Read 83 Amazon S3 reviews
  • 2,775 Views
  • 2,720 Comparison Views
98% willing to recommend
Microsoft Azure Object Storage
Read 56 Microsoft Azure Object Storage reviews
  • 569 Views
  • 558 Comparison Views
88% willing to recommend
 

Comparison Buyer's Guide

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Executive SummaryUpdated on Oct 1, 2024

Amazon S3 and Microsoft Azure Object Storage compete in the cloud storage solutions category. Amazon S3 has the upper hand in data retrieval speed and global reach, while Azure Object Storage is superior in integration with other Microsoft services and customer support.

Features: Amazon S3 offers extensive scalability, superior durability, and robust security measures. Microsoft Azure Object Storage integrates seamlessly with other Azure services, provides strong analytical capabilities, and offers flexible data management.

Room for Improvement: Users suggest Amazon S3 should simplify its complex pricing model, reduce the user learning curve, and improve customer support. Microsoft Azure Object Storage needs better performance in data retrieval speed, greater transparency in pricing, and simplified deployment processes.

Ease of Deployment and Customer Service: Amazon S3 has a straightforward deployment process but mixed reviews on customer support. Microsoft Azure Object Storage has a steeper deployment but highly rated customer service.

Pricing and ROI: Amazon S3 users appreciate competitive setup costs and good ROI but criticize the unpredictable pricing model. Azure Object Storage offers competitive pricing and high ROI with transparent costs, making it preferable for cost-sensitive users.

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To learn more, read our detailed Amazon S3 vs. Microsoft Azure Object Storage Report (Updated: September 2025).
Buyer's Guide
Amazon S3 vs. Microsoft Azure Object Storage
September 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:
 

ROI

Sentiment score
4.9
Users report positive ROI from Amazon S3 due to cost savings, scalability, data integrity, and advanced analytics benefits.
Sentiment score
4.4
Microsoft Azure Object Storage provides scalable cloud storage with mixed reviews on ROI and market fit; financial benefits vary.
Moving infrequently accessed data to cheaper classes like Glacier is beneficial for long-term storage at a lower cost.
Amazon S3 has a reasonable price as you pay a flat price to use it.
For more quotes and insights, download the Amazon S3 report
No quotes available
For more quotes and insights, download the Microsoft Azure Object Storage report
 

Customer Service

Sentiment score
6.7
Amazon S3 support is knowledgeable and helpful, but users desire faster response times; documentation reduces support necessity.
Sentiment score
6.4
Microsoft Azure Object Storage support is generally effective but varies by plan and location, with room for improvement.
I rate the technical support from Amazon for S3 a ten out of ten.
An engineer is assigned based on the severity of the issue.
The technical support for Amazon S3 is rated ten out of ten.
For more quotes and insights, download the Amazon S3 report
If I want to change something on my resources or directly access it via the portal, there is not a service level agreement of 100%, and sometimes it's quite difficult to access.
Technical support from Microsoft is good.
For more quotes and insights, download the Microsoft Azure Object Storage report
PP
Frank Ezuruike - PeerSpot reviewerNawaz Ali Shah - PeerSpot reviewerAkram Zabat - PeerSpot reviewer
PS
 

Scalability Issues

Sentiment score
7.9
Amazon S3 is praised for its scalability, flexibility, and security, ideal for enterprise-level applications despite cost considerations.
Sentiment score
7.3
Microsoft Azure Object Storage excels in scalability, overcoming minor challenges, effectively supporting diverse user needs and large-scale growth.
Data placed in an S3 bucket is replicated across availability zones in a region, ensuring scalability and availability.
The level of scalability allows storage to automatically scale on demand, without the need for manual intervention.
Amazon S3's automatic scaling has benefited me, as I don't need to plan storage requirements.
For more quotes and insights, download the Amazon S3 report
The storage is very scalable, so you can effortlessly scale it.
The downloading of high volume data and scalability processes face performance issues related to high data volumes.
Most of the time, it fits the requirement, but for drastic demands, we may need to provide quotas and other requirements to Microsoft for them to manage forecast and capacity planning.
For more quotes and insights, download the Microsoft Azure Object Storage report
Vagner Martins - PeerSpot reviewerNawaz Ali Shah - PeerSpot reviewer
BS
Akram Zabat - PeerSpot reviewerAnimesh.Kumar - PeerSpot reviewer
PS
 

Stability Issues

Sentiment score
7.8
Amazon S3 is highly stable and reliable with excellent performance, minimal maintenance, and slight security and upload speed concerns.
Sentiment score
7.0
Microsoft Azure Object Storage is stable and reliable, with minimal issues mainly during initial implementation or due to partners.
There is zero latency or downtime.
Transitioning between S3 storage classes, like moving data from the standard class to Glacier or Glacier Deep Archive, has been challenging.
Amazon S3 is highly stable.
For more quotes and insights, download the Amazon S3 report
The downloading of high volume data and scalability processes face performance issues related to high data volumes.
From a security standpoint, there is a question mark due to past cyber attacks.
For more quotes and insights, download the Microsoft Azure Object Storage report
Nawaz Ali Shah - PeerSpot reviewerVagner Martins - PeerSpot reviewerFrank Ezuruike - PeerSpot reviewerAnimesh.Kumar - PeerSpot reviewer
PS
 

Room For Improvement

Users want a more intuitive Amazon S3 interface, enhanced speed, security features, simplified pricing, and better service integration.
Microsoft Azure Object Storage needs performance, cost, support, user interface, API stability, integration, pricing clarity, scalability, auto-scaling, and security improvements.
An improvement could be associating the naming with personal accounts, allowing more familiar or desired names without conflicting with global conventions.
The practice of protecting data could be more streamlined or mandatory.
I would like to see an increase in the data upload limit, similar to DynamoDB, where there is no data limit.
For more quotes and insights, download the Amazon S3 report
When using Data Lakes for analytics and frequently pulling data from our source database to Microsoft Azure Blob Storage, there should be faster methods to download large data from Microsoft Azure Storage Blob to different locations.
They need enhancement in security aspects. Security alerts and integrations could be improved as part of lifecycle management, especially for archives and restoration requirements.
The improvement needed for Microsoft Azure Object Storage is to reduce the transactional charges, as these read and write operation charges are higher.
For more quotes and insights, download the Microsoft Azure Object Storage report
Joseph Adaji - PeerSpot reviewerVagner Martins - PeerSpot reviewerNawaz Ali Shah - PeerSpot reviewerAnimesh.Kumar - PeerSpot reviewer
PS
AK
 

Setup Cost

Amazon S3's pay-as-you-go model offers cost-effectiveness, though advanced features may increase expenses compared to competitors.
Microsoft Azure Object Storage's pricing is competitive but can be confusing and high for intensive use, with extra support charges.
I've used the free tier and haven't been charged yet.
S3 offers multiple classes, allowing you to move data to cheaper classes for cost savings.
It is somewhat justified due to the benefits, but there is room for reconsideration.
For more quotes and insights, download the Amazon S3 report
It's a pay-per-use solution and a good idea for proof of concept and value.
The licensing cost of Microsoft Azure Object Storage is cheaper compared to other competitors, such as Google or third-party solutions, which easily engages customers.
Regarding pricing for Microsoft Azure Object Storage, I find it reasonable.
For more quotes and insights, download the Microsoft Azure Object Storage report
Joseph Adaji - PeerSpot reviewerVagner Martins - PeerSpot reviewer
BS
Akram Zabat - PeerSpot reviewer
AK
RY
 

Valuable Features

Amazon S3 is favored for its security, scalability, unlimited storage, and integration with AWS, ideal for diverse data needs.
Microsoft Azure Object Storage provides scalability, cost efficiency, security, and integration features with strong metadata and disaster recovery capabilities.
Its stability and scalability are also impressive, as it allows for increased storage space according to demand.
I appreciate its capability to create static websites and integrate with services like CloudFront, EC2, and DynamoDB.
Security measures like encryption, access controls, and the block public access feature are also important.
For more quotes and insights, download the Amazon S3 report
Since I work mostly with AI/ML, data piping, data integrations, and ETL tools, these features are valuable.
When talking about storage accounts, customers utilize Azure file as a replica of the file server, allowing them to access file shares or storage accounts from their systems, making it easy to use while automatically syncing data with the cloud.
The ability to store everything inside Blob or Object storage and use it for archiving data is beneficial.
For more quotes and insights, download the Microsoft Azure Object Storage report
Joseph Adaji - PeerSpot reviewerVagner Martins - PeerSpot reviewerNawaz Ali Shah - PeerSpot reviewerAnimesh.Kumar - PeerSpot reviewer
AK
Akram Zabat - PeerSpot reviewer
 

Categories and Ranking

Amazon S3
Ranking in Public Cloud Storage Services
2nd
Average Rating
8.8
Reviews Sentiment
7.0
Number of Reviews
83
Ranking in other categories
No ranking in other categories
Microsoft Azure Object Storage
Ranking in Public Cloud Storage Services
12th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
56
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2025, in the Public Cloud Storage Services category, the mindshare of Amazon S3 is 14.1%, up from 11.5% compared to the previous year. The mindshare of Microsoft Azure Object Storage is 2.4%, up from 1.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Public Cloud Storage Services Market Share Distribution
ProductMarket Share (%)
Amazon S314.1%
Microsoft Azure Object Storage2.4%
Other83.5%
Public Cloud Storage Services
 

Featured Reviews

Roberto Costa - PeerSpot reviewer
Have used multiple features effectively and find the pricing reasonable
What I appreciate most about Amazon S3 is the tiering of the objects; with the tiering, we can determine if an object won't be accessed frequently and send it to cold storage or a Glacier storage unit, which greatly lowers AWS costs. The inventory feature, called S3 Inventory, is a cool feature as well. The object access point is another notable feature. Amazon S3 has many useful features; I can simply host my website, which has to be a static web page, but even so, it's beneficial to put my code inside of Amazon S3 as a static website that people worldwide can access. I have worked with many petabytes of data stored in Amazon S3, and I have never had any performance issues, stability issues, or anything similar.
Read full review
Akram Zabat - PeerSpot reviewer
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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Top Industries

By visitors reading reviews
Computer Software Company
16%
University
9%
Financial Services Firm
8%
Manufacturing Company
8%
Manufacturing Company
14%
Computer Software Company
14%
Comms Service Provider
9%
Retailer
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business33
Midsize Enterprise17
Large Enterprise38
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise11
Large Enterprise21
 

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?
AWS pricing for Amazon S3 starts at a higher cost, particularly in the standard class. However, with lifecycle management policies, costs can be optimized over time. On a scale from one to ten, I w...
See all answers
What needs improvement with Amazon S3?
That is a hard question; I cannot think of any improvements right now because all the necessary features are already included in Amazon S3. One aspect I would mention is the naming in Amazon S3. If...
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?
Regarding pricing for Microsoft Azure Object Storage, I find it reasonable; if I talk about blob, it is a reasonable price. It is reasonable money for the product.
See all answers
What needs improvement with Microsoft Azure Object Storage?
Based on my experience with Microsoft Azure Object Storage, integrating with on-prem Active Directory is still tricky so far, so if they can do something to make this easier, that would be an impro...
See all answers
 

Comparisons

NetApp Cloud Volumes ONTAP vs Amazon S3 Logo
NetApp Cloud Volumes ONTAP vs Amazon S3
Compared 15% of the time
Google Cloud Storage vs Amazon S3 Logo
Google Cloud Storage vs Amazon S3
Compared 12% of the time
Microsoft Azure File Storage vs Amazon S3 Logo
Microsoft Azure File Storage vs Amazon S3
Compared 9% of the time
Oracle Cloud Object Storage vs Amazon S3 Logo
Oracle Cloud Object Storage vs Amazon S3
Compared 9% of the time
Azure NetApp Files vs Amazon S3 Logo
Azure NetApp Files vs Amazon S3
Compared 4% of the time
More Amazon S3 Competitors
Oracle Cloud Object Storage vs Microsoft Azure Object Storage Logo
Oracle Cloud Object Storage vs Microsoft Azure Object Storage
Compared 44% of the time
Amazon S3 Glacier vs Microsoft Azure Object Storage Logo
Amazon S3 Glacier vs Microsoft Azure Object Storage
Compared 23% of the time
More Microsoft Azure Object Storage Competitors
 

Product Reports

Buyer's Guide
Amazon S3
October 2025
Amazon S3 reportDownload Amazon S3 product report
Buyer's Guide
Microsoft Azure Object Storage
October 2025
Microsoft Azure Object Storage reportDownload Microsoft Azure Object Storage product report
 

Also Known As

S3, Simple Storage Service
Microsoft Azure Blob Storage, Azure Object Storage, MS Azure Object Storage
 

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
 

Sample Customers

Netflix, Airbnb, Thomson Reuters, Zillow, Alert Logic
Umbraco, Xbox, Radioshack, 343 Industries, McKesson
Buyer's Guide
Amazon S3 vs. Microsoft Azure Object Storage
September 2025
Free Report: Amazon S3 vs. Microsoft Azure Object Storage
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