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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
Amazon S3 provides financial benefits through cost-effective, scalable data storage, reducing staffing and overhead costs with its pricing model.
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
6.9
Amazon S3's customer service is generally positively reviewed for being responsive and knowledgeable, despite occasional response delays.
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, cost-effective storage with virtually unlimited capacity per bucket, though bucket limits might restrict some users.
Sentiment score
8.0
Microsoft Azure Object Storage is highly scalable and easily accommodates extensive data, efficiently meeting diverse organizational needs.
The level of scalability allows storage to automatically scale on demand, without the need for manual intervention.
Data placed in an S3 bucket is replicated across availability zones in a region, ensuring scalability and availability.
Amazon S3 is easily scalable and performs better compared to other cloud storage solutions.
The storage is very scalable, so you can effortlessly scale it.
 

Stability Issues

Sentiment score
8.1
Amazon S3 offers reliable performance, minimal downtime, and high stability, though security vigilance is advised for data exposure.
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.
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.
 

Room For Improvement

Amazon S3 users seek improved interface, security, file management, integration, faster access, and simplified pricing for better usability.
Microsoft Azure Object Storage faces high costs, performance issues, complex pricing, slow support, and requires usability and technical improvements.
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.
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 competitive and flexible pricing but can become costly with high data retrieval and additional services.
Microsoft Azure Object Storage is seen as costly yet flexible, with scalable pricing, more affordable through reserved instances.
S3 offers multiple classes, allowing you to move data to cheaper classes for cost savings.
I've used the free tier and haven't been charged yet.
It is somewhat justified due to the benefits, but there is room for reconsideration.
It's a pay-per-use solution and a good idea for proof of concept and value.
 

Valuable Features

Amazon S3 provides scalable, secure, and cost-effective storage with high performance, data management features, and AWS integration.
Microsoft Azure Object Storage provides scalable, reliable, and secure data management, with flexible integration and strong performance for large files.
Its stability and scalability are also impressive, as it allows for increased storage space according to demand.
Security measures like encryption, access controls, and the block public access feature are also important.
I appreciate its capability to create static websites and integrate with services like CloudFront, EC2, and DynamoDB.
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
1st
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
81
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
7.2
Number of Reviews
52
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2025, in the Public Cloud Storage Services category, the mindshare of Amazon S3 is 11.4%, down from 14.2% compared to the previous year. The mindshare of Microsoft Azure Object Storage is 2.0%, down from 2.5% 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
77%
Computer Software Company
5%
Financial Services Firm
3%
Manufacturing Company
2%
Computer Software Company
19%
Retailer
13%
Manufacturing Company
12%
Financial Services Firm
9%
 

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: March 2025.
842,296 professionals have used our research since 2012.