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Customer reviews for Defender AI POWERED Sentinel 4K Ultra HD Wired 16 Channel NVR Security System with 16 Metal Cameras for
Defender AI POWERED Sentinel 4K Ultra HD Wired 16 Channel NVR Security System with 16 Metal Cameras
4.6 out of 5 stars
stars
92 ratings92 reviews
  1. 5 stars66% (61)
  2. 4 stars33% (30)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star1% (1)
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Showing 21-30 of 92 reviews
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?326IA7VZEYHS16767357368
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?326IA7VZEYHS16767357368
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?326IA7VZEYHS16767357368
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?326IA7VZEYHS16767357368
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?326IA7VZEYHS16767357368
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?326IA7VZEYHS16767357368
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?326IA7VZEYHS16767357368
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

Aug 9, 2023
Reviewer name: Company N
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Easy, User Friendly, Quality

Camera system was easy to set up, program, and utilize. Provided added security with good HD video recordables.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
reply from Defender

Hello Company, Thank you for your 5 star review. We love that the system is user friendly, and quality product. Thrilled to find that you found it easy to set up, program and utilize. Thank you for choosing Defender to protect what matters most. Best Regards, Amanda M | Defender Customer Experience Supervisor

Jul 7, 2024
Reviewer name: Dodum
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Overall

Clear video. Audio is subpar. The app closes down during playback. Would like to upgrade Defender product next time. Good value, however.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
Oct 7, 2022
Reviewer name: RHP165
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Dependable system

This product is an improvement over my first defender system. Easy to install, and easy to view on my smart phone.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
reply from Defender

Hello, Thank you for your review. We are happy to hear you are enjoying your new system, and all the improvements it offers. Thank you for being a loyal Defender customer. Best Regards, Amanda M | Defender Customer Experience Expert.