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Amazon S3 vs Azure Blob Storage comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Amazon S3
Ranking in Public Cloud Storage Services
1st
Average Rating
8.8
Reviews Sentiment
6.9
Number of Reviews
86
Ranking in other categories
No ranking in other categories
Azure Blob Storage
Ranking in Public Cloud Storage Services
16th
Average Rating
9.0
Reviews Sentiment
5.9
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

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.
Pramod-Talekar - PeerSpot reviewer
Sr Service Engineer at a healthcare company with 1,001-5,000 employees
Cloud storage has simplified team data access and provides reliable, globally available redundancy
The first thing I find really useful about Azure Blob Storage is that it is a cloud service running on the cloud. Using cloud storage, all the things are actually running on the cloud and they are managed by the cloud vendor. Microsoft is managing the backend things. I am just monitoring and managing the things, and I do not need to think about the physical things, upgrades, and all those things. That is managed by the OEM, which is a good thing. Additionally, it is globally available anywhere, so there are advantages in communications with the clients and all those things from that side. The main benefit that Azure Blob Storage provides for me is redundancy. They have multiple types of redundancy from the storage perspective, such as local redundant storage and zone redundant storage. Data will be available anytime, and that kind of assurance they are giving us is actually the main reason I can say for the Azure perspective. Access is one area where Azure Blob Storage can improve, as they have multiple types of storage. In Blob Storage, they also have file shares and queue storage. I have not seen any issues with Azure Blob Storage right now, and the access features allow us to grant the minimum level of access to the users, so users can only read the data. I can say those are also good features from an Azure Blob Storage perspective, and I have not seen anything negative there.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"This solution is good at storing historical data and we were using it for other purposes."
"We've had no issues with stability."
"S3 is a great service offering numerous possibilities."
"Security-wise, it's very good. The scalability and availability are great. The installation is easy. It's a stable solution. The multi-zone replication is great. Technical support is helpful."
"The most valuable features of Amazon S3 are the accuracy and the life cycle policies, which help when moving from Amazon S3 to Amazon Glacier."
"The initial setup is not difficult or overly complex. It's very straightforward and easy to implement."
"The most valuable features of Amazon S3 are compatibility and reliability."
"I don't have any problems with the solution. It's issue-free."
"The main benefit that Azure Blob Storage provides for me is redundancy."
"Azure Blob Storage is globally available anywhere, allowing for good communication with clients and taking advantage from that side."
 

Cons

"The solution could improve by having a simpler way to have the detail size of a file in the CLI to be read or understood easier. Today, it's a little raw in the way the details are presented. You have to make some scripts and some modifications to be able to see the information properly of the size of a given bucket or the size of a file."
"We have used the support from Amazon S3. The support is expensive and could be reduced."
"An encryption mechanism and storage optimization could be added."
"Regarding S3, S2, and E2, all I'd recommend is for pricing to be lower since we can easily overuse them."
"The read drive speed is not as fast as it should be."
"In the next release, I think that it would be good to have wizards that would update into specific applications, for example, a one-touch configuration in Pagemaker."
"The down side is the web app should be aware of all the features that S3 provides in order to leverage its full potential."
"We would like some improvement in the cost of storage via this solution, as it currently has a very high price point."
"The initial setup for Azure Blob Storage is right now simple, but they could improve the implementation in the future, particularly around configuration, access-related management, and related things."
"A proper monitoring dashboard would help, allowing us to see the usage and IO utilization."
 

Pricing and Cost Advice

"The license of Amazon S3 is based on volume, capacity, and time. The overall price of the solution could improve. The support has to be added if you want it at an additional cost."
"Amazon S3 is a cheap solution."
"The price of the Amazon S3 is reasonable. There are not any licensing costs, they have a pay-as-you-use model."
"The pricing is good."
"There is a license to use Amazon S3."
"The tool is not too expensive considering the various pros."
"The price of the Amazon S3 is low. The license model is based on what you use."
"There is a license needed to use this solution and it is reasonably priced."
Information not available
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Construction Company
11%
Manufacturing Company
8%
Marketing Services Firm
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise18
Large Enterprise39
No data available
 

Questions from the Community

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?
I would appreciate Amazon expanding the available documentation to keep it as modern and up-to-date as possible.
What is your primary use case for Amazon S3?
I use Amazon S3 for storing images, uploading files like PDFs or PNGs, and other documents and images. I use Amazon S3's lifecycle management features for changing storage classes when the data nee...
What needs improvement with Azure Blob Storage?
A proper monitoring dashboard would help, allowing us to see the usage and IO utilization. If there is any monitoring application, it could help us get more information about how many users are con...
What is your primary use case for Azure Blob Storage?
We have moved multiple things not only from the physical perspective but also to the cloud, and I can say that we have moved to Azure. Currently, I have started working on Azure cloud, and I am usi...
What advice do you have for others considering Azure Blob Storage?
Azure VMware Solution, which is abbreviated as AVS, is a VMware solution that I am using. I am not using any other Azure solutions beyond Azure Blob Storage, and most of the storage is Azure Blob S...
 

Also Known As

S3, Simple Storage Service
No data available
 

Overview

 

Sample Customers

Netflix, Airbnb, Thomson Reuters, Zillow, Alert Logic
Information Not Available
Find out what your peers are saying about Amazon S3 vs. Azure Blob Storage and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.