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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
6.0
Organizations see strong ROI from Amazon S3 due to scalability, cost-effectiveness, and benefits like hardware decommissioning and storage classes.
Sentiment score
6.8
Microsoft Azure Object Storage is valued for cost savings, scalability, real-time capabilities, uptime, and transitioning data benefits.
Moving infrequently accessed data to cheaper classes like Glacier is beneficial for long-term storage at a lower cost.
 

Customer Service

Sentiment score
7.0
Amazon S3 customer service is mostly positive with quick, knowledgeable support, though some users experience delays and cost concerns.
Sentiment score
7.6
Microsoft Azure Object Storage customer service is generally praised for expertise and responsiveness, despite occasional delays and communication issues.
I rate the technical support from Amazon for S3 a ten out of ten.
The technical support for Amazon S3 is rated ten out of ten.
An engineer is assigned based on the severity of the issue.
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.
 

Scalability Issues

Sentiment score
8.4
Amazon S3 offers scalable, secure storage solutions for businesses of all sizes, despite some limitations in account configurations.
Sentiment score
8.0
Microsoft Azure Object Storage is highly scalable and easily accommodates extensive data, efficiently meeting diverse organizational needs.
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 provides 5 TB of storage, offering humongous scalability possibilities and reliability.
The storage is very scalable, so you can effortlessly scale it.
 

Stability Issues

Sentiment score
8.1
Amazon S3 offers reliable performance and stability, with minimal issues reported, ensuring a dependable experience for users.
Sentiment score
7.8
Microsoft Azure Object Storage is stable, with minimal bugs, good performance, but occasional downtime and rare hardware disruptions reported.
There is zero latency or downtime.
Its stability is crucial for allowing an easy flow of work and ensuring business processes are uninterrupted.
Amazon S3 is highly stable.
 

Room For Improvement

Amazon S3 users seek improved UI, better performance, lower costs, easier setup, and enhanced compliance, security, and metadata features.
Microsoft Azure Object Storage faces high costs, performance issues, complex pricing, slow support, and requires usability and technical improvements.
I would like to see an increase in the data upload limit, similar to DynamoDB, where there is no data limit.
AWS should provide more attractive and comprehensive documentation, especially while integrating Amazon S3 with other AWS services like Elemental MediaConvert.
An improvement could be associating the naming with personal accounts, allowing more familiar or desired names without conflicting with global conventions.
 

Setup Cost

Amazon S3 offers flexible pay-as-you-go pricing, though costs can rise with data retrieval and advanced features.
Microsoft Azure Object Storage is seen as costly yet flexible, with scalable pricing, more affordable through reserved instances.
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.
AWS pricing for Amazon S3 starts at a higher cost, particularly in the standard class.
It's a pay-per-use solution and a good idea for proof of concept and value.
 

Valuable Features

Amazon S3 offers high availability, security, scalability, ease of use, integration, and efficient data management with AWS compatibility.
Microsoft Azure Object Storage provides scalable, reliable, and secure data management, with flexible integration and strong performance for large files.
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.
Its stability and scalability are also impressive, as it allows for increased storage space according to demand.
The ability to store everything inside Blob or Object storage and use it for archiving data is beneficial.
 

Categories and Ranking

Amazon S3
Ranking in Public Cloud Storage Services
2nd
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
82
Ranking in other categories
No ranking in other categories
Microsoft Azure Object Storage
Ranking in Public Cloud Storage Services
9th
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
52
Ranking in other categories
No ranking in other categories
 

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. It is calculated based on PeerSpot user engagement data.
Public Cloud Storage Services
 

Featured Reviews

Vagner Martins - PeerSpot reviewer
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.
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
Educational Organization
75%
Computer Software Company
5%
Financial Services Firm
4%
Manufacturing Company
2%
Computer Software Company
23%
Manufacturing Company
13%
Retailer
12%
Real Estate/Law Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
S3 is a pay-as-you-go service. I pay based on the data volume I am using.
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 increase in the data upload limit, similar to DynamoDB, where there is no data limit.
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 idea for proof of concept and value. If I want to test a product before deploying i...
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. However, one potential area for improvement is the replication process. Some clients c...
 

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: April 2025.
849,686 professionals have used our research since 2012.