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Customer reviews for Defender AI POWERED Sentinel 4K Ultra HD Wired 16 Channel PoE NVR Security System with 16 Metal Cameras 2TB HDD for
Defender AI POWERED Sentinel 4K Ultra HD Wired 16 Channel PoE NVR Security System with 16 Metal Cameras 2TB HDD
4.6 out of 5 stars
stars
94 ratings94 reviews
  1. 5 stars66% (62)
  2. 4 stars32% (30)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star2% (2)

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Showing 21-30 of 94 reviews
Dec 12, 2022
Reviewer name: Bala
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Smart home features are missing

This is an easy install and works better than other IP security cameras. It would be nice to have the Defender cameras to work with Amazon Alexa, Google Home for smart home features which other camera vendors have it.

Review from defender-usa.com
Helpful?3KKSK3HSRNTF16749471827
reply from Defender

Hello Bala, Thank you for your feedback. We are happy to hear that the setup was easy and that you are happy with the cameras. Thank you for your feedback, we have passed this recommendation on to our Research and Development team. Thank you for choosing Defender to protect what matters most. Best Regards, Amanda M | Defender Customer Experience Expert

Oct 9, 2025
Reviewer name: LetarInc
5 out of 5 stars
5 out of 5 stars review

Great Cameras, Easy to Install

Fantastic security system for monitoring our manufacturing facility. Installation was easy and the cameras have a simple, yet robust UI. Would recommend to anyone looking for a simple yet effective security system.

Review from defender-usa.com
Helpful?3KKSK3HSRNTF16749471827
Dec 14, 2025
Reviewer name: CDA Steve
1 out of 5 stars
1 out of 5 stars review

Can't connect to a real person

Bought a four camera eight port system, thinking I could add extra cameras later, Cant buy extra cameras. Defender lost a customer. I'll be upgrading with a different company that will sell extra cameras.

Review from defender-usa.com
Helpful?3KKSK3HSRNTF16749471827
Feb 27, 2024
Reviewer name: The Don
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

installed at lake house

Enjoying the customisations available. Much to learn. Fairly user friendly with a bit of exploration. Human detection feature is a bit of a challenge yet.

Review from defender-usa.com
Helpful?3KKSK3HSRNTF16749471827
May 26, 2025
Reviewer name: Anonymous
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Great system, quality video

Super easy to install, and love the crisp picture. Only quip I had is that 60’ runs are tight when going to opposite ends of the house, 80’ cable runs would have been much better as I had to extend 2 of my camera runs.

Review from defender-usa.com
Helpful?3KKSK3HSRNTF16749471827
Dec 16, 2022
Reviewer name: WS Jessome
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Better cameras. No subscriptions.

These cameras are just what I was looking for. I had wifi cameras which expensive enough. Then you have to add monthly subscription charges. It seems like it was a ripoff, which I'm glad to get rid of.

Review from defender-usa.com
Helpful?3KKSK3HSRNTF16749471827
reply from Defender

Hello Anonymous! Thank you for taking the time to review the 4K Sentinel security system. We are so glad to hear you are happy with the system. Our customer feedback is what matters most to us here at Defender! We would greatly appreciate you speaking with your friends and family about your experience with Defender and your 4K Sentinel. Thank you for choosing Defender to protect what matters most. Amanda M. | Defender Customer Experience Expert

Jan 20, 2025
Reviewer name: Denis S
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Sentinel 4K

Purchase 1 month ago, works as required. Quality very good. Easy to set up. Downside, I cannot add a software like I did with my Swann system to view my cameras on my home laptop : (

Review from defender-usa.com
Helpful?3KKSK3HSRNTF16749471827
Nov 25, 2024
Reviewer name: Ahmad
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great support

This is a great company I like their cameras and their new app, Also thanks to Tristan he always follows up with my purchases and resolves any issues very quickly

Review from defender-usa.com
Helpful?3KKSK3HSRNTF16749471827
Jul 18, 2022
Reviewer name: Rohit
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

just an avearge..

I did not know that it will need a screen to do all the configuration and settings. that is a drawback. Clarity of picture is not as per my expectations. It can't read the number on my car's number plate parked just in front of my driveway.

Review from defender-usa.com
Helpful?3KKSK3HSRNTF16749471827
reply from Defender

Hello Rohit, Thank you for your honest review. The system can be monitored from the app, to set the system and for several configuration options, you will want to connect the NVR to a monitor or TV. Please reach out to our support team, we would be happy to assist you with checking your settings to ensure you get true 4K picture quality. Thank you for choosing Defender to protect what matters most. Amanda M. | Defender Customer Experience Expert

Jan 7, 2023
Reviewer name: MelL
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Good, will update w/ further exploration

Amazing picture quality though no imagery at night. Playback feature could be better continues to freeze and lag on the fastest internet connection possible.I would prefer more ease of setup and description of features.

Review from defender-usa.com
Helpful?3KKSK3HSRNTF16749471827
reply from Defender

Hello Anonymous! Thank you for taking the time to review the 4K Sentinel security system. We are so glad to hear you are happy with the system. Our customer feedback is what matters most to us here at Defender! We would greatly appreciate you speaking with your friends and family about your experience with Defender and your 4K Sentinel. Thank you for choosing Defender to protect what matters most. Amanda M. | Defender Customer Experience Expert