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Microsoft Defender XDR vs SentinelOne Singularity Complete comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 9, 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
7.1
Microsoft Defender XDR provides high ROI by consolidating security tools, streamlining operations, and enhancing security, despite licensing costs.
Sentiment score
7.3
SentinelOne Singularity Complete is praised for advanced threat detection, reduced response times, cost savings, and improved security operations.
We can quarantine and isolate a device within minutes.
Information Security Analyst at a educational organization with 10,001+ employees
Microsoft Defender XDR has saved me at least 50% of my time.
House security operator at Cypress Creek Renewables
It helped stop multiple intrusion points where we would have had millions in lost revenue if the attackers got in.
Network Technician at T. Baker Smith, LLC
SentinelOne Singularity Complete has helped reduce my organization's mean time to detect by fifty percent.
Director, Infrastructure & Security at Dreamscape Companies
Since then, I have not faced any intrusions, which is one reason I chose SentinelOne over ESET.
Computer Technician at VILLE DE POINTE-CLAIRE
We have not faced any attacks since we implemented it.
Information Security Principal at a venture capital & private equity firm with 1,001-5,000 employees
 

Customer Service

Sentiment score
6.1
Microsoft Defender XDR's support is timely and responsive, yet smaller organizations experience slower, less effective assistance than larger ones.
Sentiment score
7.2
SentinelOne Singularity Complete's support is praised for speed, expertise, and proactive engagement, despite some communication delays and request for interactivity.
You get stuck in low-level support for way longer than you should, instead of them escalating the issue up the chain.
Enterprise Application Engineer at a legal firm with 1,001-5,000 employees
It's critical to escalate SEV B issues immediately to a domestic engineer.
Infrastructure engineer at Cetera Financial Group
Once issues are escalated to the second or third layer, the support is much better.
Cyber Security Engineer at a financial services firm with 1-10 employees
We are using the automated email process for support, and they respond within an hour or two hours sometimes.
Computer Technician at VILLE DE POINTE-CLAIRE
A chat service would be beneficial.
Information Security Principal at a venture capital & private equity firm with 1,001-5,000 employees
The technical support from SentinelOne Singularity Complete is very active and good, with a strong knowledge base available online.
Cyber Consultant at a consultancy with 11-50 employees
 

Scalability Issues

Sentiment score
6.9
Microsoft Defender XDR scales well for various organizations, efficiently supporting growth and flexibility despite some network deployment challenges.
Sentiment score
8.0
SentinelOne Singularity Complete is praised for seamless scalability and integration, supporting thousands of endpoints across diverse environments.
My concern is about the scale of events and alerts being generated, and the product is doing a very good job of only surfacing the important items for us.
Vice President, Information Technology at a construction company with 201-500 employees
Microsoft Defender XDR shows tremendous scalability, much more so than on-premises solutions.
Infrastructure engineer at Cetera Financial Group
Microsoft Defender XDR scales pretty well.
Information Security Analyst at a educational organization with 10,001+ employees
It's all auto-scale and auto-categorized, configuring automatically.
AGM IT Security at Page Industries Ltd
SentinelOne Singularity Complete is very scalable.
DGM. Technical Security at a tech services company with 10,001+ employees
SentinelOne Singularity Complete is very scalable for our needs.
Cyber Security Expert at Nestle
 

Stability Issues

Sentiment score
8.1
Microsoft Defender XDR is praised for high stability, reliable performance, minimal issues, frequent updates, and prompt issue resolution.
Sentiment score
7.9
SentinelOne Singularity Complete offers stable, reliable protection with minor deployment issues, minimal resource impact, and consistent uptime.
The service has remained consistently online, with any issues isolated to specific components, suggesting a well-designed and modular architecture.
Senior System Engineer at a sports company with 5,001-10,000 employees
The services within our ecosystem have been reliable, meeting their SLAs.
Infrastructure engineer at Cetera Financial Group
It provides high-fidelity signals.
Information Security Analyst at a educational organization with 10,001+ employees
This indicates room for improvement in stability when interacting with other solutions.
Director, Information Technology at Premier Realty Group
Initially, there were issues, particularly on the management side, but now the console is much more stable.
Information Security Principal at a venture capital & private equity firm with 1,001-5,000 employees
Everything is managed automatically, so there is no user interference needed for upgrades.
DGM. Technical Security at a tech services company with 10,001+ employees
 

Room For Improvement

Microsoft Defender XDR requires enhancements in speed, integration, automation, AI, ease-of-use, and industry-specific threat intelligence.
SentinelOne Singularity Complete needs better UI, automation, integration, cost efficiency, and improved reporting and deployment processes.
The licensing process needs improvement and clarification.
Owner at a consultancy with 11-50 employees
Improvements are needed in automated response capabilities.
Security manager at a consultancy with 10,001+ employees
Some inconsistencies exist between blades, which could be improved for a more seamless user and UI experience.
Infrastructure engineer at Cetera Financial Group
The only thing that prevented the attack from succeeding was a free version of Malwarebytes.
Director, Information Technology at Premier Realty Group
Providing a single pane of visibility for the end user would be beneficial.
AGM IT Security at Page Industries Ltd
That seems to play a little havoc and can conflict with manual installs, causing issues where it wants to delete and reinstall the client.
Computer Technician at VILLE DE POINTE-CLAIRE
 

Setup Cost

Microsoft Defender XDR pricing is seen as complex but fair, with high costs alleviated in bundled Microsoft 365 packages.
SentinelOne Singularity Complete offers competitive pricing with flexible licensing praised for scalability and comprehensive protection value.
There are certainly savings when using Microsoft Defender XDR, which can range from 30%, 40%, and even up to 50%.
Director, Sales at a tech vendor with 201-500 employees
I would rate the pricing as eight out of ten, indicating it is a reasonable cost for the product.
Security manager at a consultancy with 10,001+ employees
Microsoft purposefully obfuscates this through marketing ploys to hide costs.
Senior System Engineer at a sports company with 5,001-10,000 employees
If you want protection, you have to pay the price.
Information Security Principal at a venture capital & private equity firm with 1,001-5,000 employees
There are other products that are less expensive, but I tell my clients that in security, they cannot cut corners or look for the cheapest solution.
President at a tech services company with 1-10 employees
Reputation and quality are important, but especially in today’s economy, price is a significant factor.
Security and Compliance at a outsourcing company with 1,001-5,000 employees
 

Valuable Features

Microsoft Defender XDR integrates tools for comprehensive security, offering threat detection, automation, identity protection, and enhanced efficiency.
SentinelOne Singularity Complete offers AI-driven cybersecurity, robust ransomware protection, third-party integration, and efficient threat management with minimal resource use.
With Microsoft threat intelligence information, it detects various types of threats, including insider attacks, malicious content, and data exfiltration.
Security manager at a consultancy with 10,001+ employees
This allows us to secure our systems in advance and proactively improve security, rather than waiting for incidents to occur.
Works at Hometrack
Once we have it on the security dashboard, we can see a real-time storyline.
Information Security Analyst at a educational organization with 10,001+ employees
I have an advanced app providing visibility of all my endpoints, which was not the case before.
AGM IT Security at Page Industries Ltd
SentinelOne has a feature to decommission automatically, which has been fantastic.
Computer Technician at VILLE DE POINTE-CLAIRE
There's also automation that gives my team free time, preventing them from having to look for every alert.
Network & Security Section Head/Digital Transformation at City Edge
 

Categories and Ranking

Microsoft Defender XDR
Ranking in Endpoint Detection and Response (EDR)
7th
Ranking in Extended Detection and Response (XDR)
4th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
106
Ranking in other categories
Microsoft Security Suite (5th)
SentinelOne Singularity Com...
Ranking in Endpoint Detection and Response (EDR)
2nd
Ranking in Extended Detection and Response (XDR)
3rd
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
204
Ranking in other categories
Endpoint Protection Platform (EPP) (3rd), Anti-Malware Tools (2nd), AI Observability (3rd)
 

Mindshare comparison

As of February 2026, in the Endpoint Detection and Response (EDR) category, the mindshare of Microsoft Defender XDR is 2.6%, down from 3.2% compared to the previous year. The mindshare of SentinelOne Singularity Complete is 5.1%, down from 5.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Endpoint Detection and Response (EDR) Market Share Distribution
ProductMarket Share (%)
SentinelOne Singularity Complete5.1%
Microsoft Defender XDR2.6%
Other92.3%
Endpoint Detection and Response (EDR)
 

Featured Reviews

KO
House security operator at Cypress Creek Renewables
Advanced threat hunting saves significant time in tracking and responding to incidents
Microsoft Defender XDR could be improved with a lower price. My main suggestion would essentially be what Copilot is providing, which is a single pane of glass, so I don't have to go to different windows. That's just a workflow consideration for me. It would be great to have all the information centralized into one particular data app. If I need to open up extra ones, I can, however, I would appreciate a future where everything I need is right there on one single pane of glass. Beyond that, there's really nothing else I see that I would want Microsoft to improve.
Daniel Giacomelli - PeerSpot reviewer
Security and Compliance at a outsourcing company with 1,001-5,000 employees
Strengthens cross-platform threat response while supporting audit compliance and log integration
The analytics and reporting can be a bit overwhelming. I love the dashboards, but I find that I need to better understand PowerQuery—specifically when to turn it on and off and its limitations. It's similar to SharePoint in that regard. As a former SharePoint instructor, I know it like the back of my hand. The best thing about SharePoint is that it can do whatever you want; the worst part is also that it can do whatever you want. You really need to know what you want before diving in. Most people usually have a good idea of what they need. SharePoint offers a lot out of the box, but you can customize it further if you wish. However, customization often requires hiring someone, which can be risky since you never know if it will work as intended. On the other hand, PowerQuery can help bridge some of those gaps within Singularity. The challenge arises when you want to incorporate what you've done into dashboards and charts, as there are limitations. For instance, I want more clickable drill-down options that allow me to filter on specific sections of the data, but that's currently not possible. It’s not to say that improvements won’t come in the future; it's just that it feels a bit early at this stage. Additionally, I find some navigation features frustrating, like the back button in certain contexts. For example, if you open PowerQuery from a chart, it doesn't open in a new window or tab. Clicking the back button takes you all the way back to the previous state, causing you to lose whatever progress you made. However, I'm actively providing this feedback to my partner, Pro Circular, through whom we access SentinelOne. They take our input seriously, and I've been sharing my observations. They have their own views but are addressing the issues I raise. It's good to see that suggestions occasionally lead to updates and improvements.
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
9%
Manufacturing Company
8%
Comms Service Provider
7%
Computer Software Company
12%
Manufacturing Company
9%
Financial Services Firm
7%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business47
Midsize Enterprise25
Large Enterprise38
By reviewers
Company SizeCount
Small Business87
Midsize Enterprise44
Large Enterprise77
 

Questions from the Community

What do you like most about Microsoft 365 Defender?
Microsoft Defender XDR provides strong identity protection with comprehensive insights into risky user behavior and potential indicators of compromise.
What is your experience regarding pricing and costs for Microsoft 365 Defender?
My experience with pricing, setup, costs, and licensing of Microsoft Defender XDR is tied to our E5 subscription, which is very straightforward for us. We also purchase the uplift for our mobile us...
What needs improvement with Microsoft 365 Defender?
I am not aware of a mobile app that would be available for my team. With a single analyst, if she is ever away, it would be beneficial to have easier access. While she can use the web portal, the e...
Cortex XDR by Palo Alto vs. Sentinel One
Cortex XDR by Palo Alto vs. SentinelOne SentinelOne offers very detailed specifics with regard to risks or attacks. The ability to reverse damage caused by ransomware with minimal interruptions to...
Which is better - SentinelOne or Darktrace?
Which solution is better depends on which is more suitable specifically for your company. Darktrace, for example, is meant for smaller to medium-sized businesses. It is also a good option for organ...
 

Also Known As

Microsoft 365 Defender, Microsoft Threat Protection, MS 365 Defender
Sentinel Labs, SentinelOne Singularity
 

Overview

 

Sample Customers

Accenture, Deloitte, ExxonMobil, General Electric, IBM, Johnson & Johnson and many others.
Havas, Flex, Estee Lauder, McKesson, Norfolk Southern, JetBlue, Norwegian airlines, TGI Friday, AVX, Fim Bank
Find out what your peers are saying about Microsoft Defender XDR vs. SentinelOne Singularity Complete and other solutions. Updated: December 2025.
881,384 professionals have used our research since 2012.