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Amazon S3 vs Microsoft Azure Object Storage comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 1, 2024

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
5.8
Organizations find Amazon S3 cost-effective, scalable, and productivity-boosting, with economic advantages and reduced overhead costs.
Sentiment score
5.1
Microsoft Azure Object Storage offers scalable, cost-effective solutions, enhancing business ROI and efficiency through flexible payment models.
Moving infrequently accessed data to cheaper classes like Glacier is beneficial for long-term storage at a lower cost.
Information Security Analyst at a financial services firm with 201-500 employees
I have seen a return on investment, and the ROI that we observed in our organization includes reducing manpower by 20% and achieving zero downtime for storage expansion, which improves overall productivity.
Data Engineer at a tech vendor with 10,001+ employees
Amazon S3 has a reasonable price as you pay a flat price to use it.
Senior Data & AI Engineer at Imprint
I have seen a return on investment as it saves both time and money with this agile technology.
Chief Technical Officer at a tech services company with 11-50 employees
 

Customer Service

Sentiment score
6.9
Amazon S3 support is professional and responsive, with high user ratings, despite occasional delays and cost concerns.
Sentiment score
6.2
Microsoft Azure Object Storage support is effective but varies in responsiveness, with premium plans and regions affecting user satisfaction.
I rate the technical support from Amazon for S3 a ten out of ten.
CTO at Atulya Abhinav Tech Private Limited
The customer support for Amazon S3 is very good; they are responsive and knowledgeable, providing quick resolutions, clear documentation, and proactive guidance during migrations or performance tuning.
Data Engineer at a tech vendor with 10,001+ employees
An engineer is assigned based on the severity of the issue.
DevOps Engineer at Olla Systems Limited
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.
Consultant - Architecture Solution at Onepoint
The customer support for Microsoft Azure Object Storage is not good.
Chief Technical Officer at a tech services company with 11-50 employees
Technical support from Microsoft is good.
One Cloud Enterprise Architect at ATOS
 

Scalability Issues

Sentiment score
7.9
Amazon S3 provides scalable, cost-effective storage with strong security, widely used across industries for data management.
Sentiment score
6.7
Microsoft Azure Object Storage is praised for robust scalability, handling extensive data needs, though some report performance issues.
Data placed in an S3 bucket is replicated across availability zones in a region, ensuring scalability and availability.
Information Security Analyst at a financial services firm with 201-500 employees
The level of scalability allows storage to automatically scale on demand, without the need for manual intervention.
AWS Consultant at Virtual University
The scalability of Amazon S3 is excellent as it handles unlimited data and seamlessly supports growth without manual provisioning or performance degradation.
Data Engineer at a tech vendor with 10,001+ employees
The storage is very scalable, so you can effortlessly scale it.
Consultant - Architecture Solution at Onepoint
The downloading of high volume data and scalability processes face performance issues related to high data volumes.
Senior Solutions Architect at Think Power Solutions
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.
One Cloud Enterprise Architect at ATOS
 

Stability Issues

Sentiment score
7.7
Amazon S3 is praised for high stability, performance, and 99.99% uptime with minor latency but noted security concerns.
Sentiment score
7.0
Microsoft Azure Object Storage is generally stable, but reliability can vary based on implementation partners and compliance standards.
There is zero latency or downtime.
AWS Consultant at Virtual University
Transitioning between S3 storage classes, like moving data from the standard class to Glacier or Glacier Deep Archive, has been challenging.
Information Security Analyst at a financial services firm with 201-500 employees
Amazon S3 is highly stable.
DevOps Engineer at Olla Systems Limited
The downloading of high volume data and scalability processes face performance issues related to high data volumes.
Senior Solutions Architect at Think Power Solutions
From a security standpoint, there is a question mark due to past cyber attacks.
One Cloud Enterprise Architect at ATOS
 

Room For Improvement

Amazon S3 users desire enhanced dashboards, better security, improved performance, simplified configurations, intuitive interfaces, and more competitive pricing.
Microsoft Azure Object Storage needs improvements in performance, cost, UI, integration, and security to meet user expectations.
An improvement could be associating the naming with personal accounts, allowing more familiar or desired names without conflicting with global conventions.
DevOps Engineer at Stellar Tech
The practice of protecting data could be more streamlined or mandatory.
Information Security Analyst at a financial services firm with 201-500 employees
I would like to see an increase in the data upload limit, similar to DynamoDB, where there is no data limit.
AWS Consultant at Virtual University
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.
Senior Solutions Architect at Think Power Solutions
They need enhancement in security aspects. Security alerts and integrations could be improved as part of lifecycle management, especially for archives and restoration requirements.
One Cloud Enterprise Architect at ATOS
The improvement needed for Microsoft Azure Object Storage is to reduce the transactional charges, as these read and write operation charges are higher.
senior partner at Niyocon
 

Setup Cost

Amazon S3 offers cost-effective storage with pay-as-you-go pricing, but retrieval and advanced features can be expensive.
Microsoft Azure's flexible pricing appeals with pay-as-you-go and discounts, despite concerns over complexity and high usage costs.
I've used the free tier and haven't been charged yet.
DevOps Engineer at Stellar Tech
S3 offers multiple classes, allowing you to move data to cheaper classes for cost savings.
Information Security Analyst at a financial services firm with 201-500 employees
Since using Amazon S3, storage costs have reduced by around 35% to 40% through lifecycle tiering.
Data Engineer at a tech vendor with 10,001+ employees
It's a pay-per-use solution and a good idea for proof of concept and value.
Consultant - Architecture Solution at Onepoint
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.
senior partner at Niyocon
Regarding pricing for Microsoft Azure Object Storage, I find it reasonable.
Sr. Manager IT Datacentre Cloud and Network at a insurance company with 1,001-5,000 employees
 

Valuable Features

Amazon S3 offers scalability, high availability, security, and cost-effective data management, appreciated for performance, reliability, and global accessibility.
Microsoft Azure Object Storage provides scalable, reliable, and secure data management with strong features for integration, backup, and compliance.
Its stability and scalability are also impressive, as it allows for increased storage space according to demand.
DevOps Engineer at Stellar Tech
I appreciate its capability to create static websites and integrate with services like CloudFront, EC2, and DynamoDB.
Information Security Analyst at a financial services firm with 201-500 employees
Security measures like encryption, access controls, and the block public access feature are also important.
AWS Consultant at Virtual University
Since I work mostly with AI/ML, data piping, data integrations, and ETL tools, these features are valuable.
Senior Solutions Architect at Think Power Solutions
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.
senior partner at Niyocon
The ability to store everything inside Blob or Object storage and use it for archiving data is beneficial.
Consultant - Architecture Solution at Onepoint
 

Categories and Ranking

Amazon S3
Ranking in Public Cloud Storage Services
2nd
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
84
Ranking in other categories
No ranking in other categories
Microsoft Azure Object Storage
Ranking in Public Cloud Storage Services
10th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
57
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Public Cloud Storage Services category, the mindshare of Amazon S3 is 13.2%, up from 11.8% compared to the previous year. The mindshare of Microsoft Azure Object Storage is 3.0%, up from 2.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Public Cloud Storage Services Market Share Distribution
ProductMarket Share (%)
Amazon S313.2%
Microsoft Azure Object Storage3.0%
Other83.8%
Public Cloud Storage Services
 

Featured Reviews

reviewer2774889 - PeerSpot reviewer
Data Engineer at a tech vendor with 10,001+ employees
Has reduced storage costs and improved data management through automated lifecycle and seamless service integration
The best features that Amazon S3 offers are high durability and availability with virtually unlimited storage, lifecycle management for automated tiering and cost control, versioning to retain and recover data changes, and integration with services such as Glue, Athena, EMR, Lambda, along with strong security via IAM roles, bucket policies, and encryption. These features help by ensuring data is always available, securely stored, and easily accessible for pipelines. Lifecycle policies reduce manual cleanup, versioning safeguards against accidental deletions, and integrations allow us to directly run analytics or trigger workflows without moving data around. Amazon S3 event notifications help automate tasks such as triggering ETL jobs or Lambda functions on new data arrivals, and features such as cross-region replication ensure data redundancy and compliance, while fine-grained access control makes it easy to manage permissions across teams securely. My organization has seen improvements in data accessibility, reduced infrastructure costs, and simplified data management through Amazon S3. We now have a unified scalable storage layer that supports analytics, backups, and migrations seamlessly, leading to faster workflows and better decision-making.
Akram Zabat - PeerSpot reviewer
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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Top Industries

By visitors reading reviews
Computer Software Company
14%
Manufacturing Company
9%
University
9%
Financial Services Firm
8%
Manufacturing Company
17%
Computer Software Company
15%
Comms Service Provider
7%
Performing Arts
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business33
Midsize Enterprise17
Large Enterprise39
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise11
Large Enterprise21
 

Questions from the Community

What do you like most about Amazon S3?
We can easily connect to the AWS resources.
What is your experience regarding pricing and costs for Amazon S3?
Since using Amazon S3, storage costs have reduced by around 35% to 40% through lifecycle tiering, data availability improved to 99.9% which minimizes downtime, ETL processing time decreased by appr...
What needs improvement with Amazon S3?
Amazon S3 can be improved with more intuitive cost visualization tools with forecasting capabilities, faster restore times from Glacier tiers, better real-time monitoring of data access patterns, a...
What is your experience regarding pricing and costs for Microsoft Azure Object Storage?
My experience with pricing, setup cost, and licensing for Microsoft Azure Object Storage is very good.
What needs improvement with Microsoft Azure Object Storage?
The customer support for Microsoft Azure Object Storage is not good. If a good engineer is assigned, then it functions well. However, every time we are doing troubleshooting, it is not Microsoft.
 

Also Known As

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

Overview

 

Sample Customers

Netflix, Airbnb, Thomson Reuters, Zillow, Alert Logic
Umbraco, Xbox, Radioshack, 343 Industries, McKesson
Find out what your peers are saying about Amazon S3 vs. Microsoft Azure Object Storage and other solutions. Updated: December 2025.
879,455 professionals have used our research since 2012.