Overview

The REOLINK CX820 4K PoE Security Camera offers high-definition surveillance with cutting-edge features. This security camera combines 4K resolution with advanced color night vision, making it ideal for monitoring both day and night. Equipped with AI-powered motion detection, it can recognize people, vehicles, and animals, reducing false alarms. The built-in spotlight and siren add an extra layer of protection, making it a robust security solution for homes and small businesses alike. With Power over Ethernet (PoE), this camera simplifies installation, requiring just one cable for both power and data.

Features & Benefits

This 4K security camera excels in night vision, thanks to its F1.0 aperture and 3000K warm light, providing clear, vibrant images in low light. The advanced HDR technology enhances visual clarity in both bright and dark areas, ensuring you capture every detail. The camera’s PoE setup ensures a smooth and reliable installation process, eliminating the need for multiple cables. With a waterproof IP67 rating, it’s built to withstand tough weather conditions. Plus, the support for up to 512GB microSD cards ensures continuous recording without external storage reliance.

Best For

The REOLINK CX820 is perfect for homeowners looking for a hassle-free security camera with high-quality night vision. Its AI-based motion detection makes it an excellent choice for small businesses that require reliable surveillance, while the built-in spotlight and siren offer added security in any situation. This PoE camera is also ideal for users who prefer a plug-and-play setup with minimal wiring. Whether you’re protecting your home or business, this camera provides peace of mind with professional-grade features and ease of use.

User Feedback

Users rave about the camera’s exceptional 4K resolution and vibrant color night vision, which ensures that no detail is missed, even in low-light conditions. Many appreciate the simple PoE installation process, making setup quick and easy. However, some users have mentioned occasional issues with motion detection accuracy, particularly in environments with a lot of movement. The built-in spotlight and siren are widely praised for their security-enhancing capabilities, although a few have reported connectivity glitches with the mobile app. Overall, the camera’s performance and features have garnered mostly positive feedback.

Pros

  • The 4K resolution delivers clear and detailed footage, which users find ideal for monitoring large areas.
  • Color night vision, enhanced by a 3000K warm light, provides clear visibility in low-light conditions.
  • AI-based detection for people, vehicles, and animals adds an extra layer of security with fewer false alerts.
  • PoE connectivity simplifies installation, requiring only one cable for both power and data.
  • The built-in spotlight and siren serve as effective deterrents, enhancing the overall security setup.
  • The IP67 waterproof rating ensures the camera operates reliably even in harsh weather conditions, making it suitable for outdoor use.

Cons

  • Some users report occasional connectivity issues with the app, making remote viewing a bit frustrating at times.
  • Motion detection accuracy could be improved, as some users noted missed events or false alarms.
  • The camera's large size may not be ideal for discreet surveillance in locations where aesthetics matter.
  • Setting up the microSD card for continuous recording can be a bit tricky for less tech-savvy users.
  • Some buyers find the camera's night vision performance underwhelming in extremely dark environments.
  • A few users have expressed concerns about limited storage capacity when recording high-traffic areas for extended periods.

Ratings

The REOLINK CX820 4K PoE Security Camera has received a range of user feedback from multiple countries and languages, reflecting both its strengths and areas for improvement. After analyzing verified reviews worldwide, we filtered out spam, incentivized, and exaggerated reviews to provide an authentic assessment. Buyers appreciate its high-quality visuals, easy installation, and advanced AI features, though some have noted occasional connectivity issues and motion detection challenges. Overall, the feedback balances both positive experiences and constructive criticisms, giving a realistic view of what to expect from this security camera.

Video Quality
94%
Many users rave about the clear and sharp 4K resolution, which delivers crisp and vibrant footage. The color reproduction is impressive, even in low-light conditions, making it ideal for both daytime and nighttime monitoring. The high-quality video provides clear identification of people and objects, adding to its effectiveness as a security tool.
Some users reported that while the video quality is excellent, it can be somewhat dependent on good lighting. In certain low-light situations, the image quality might not be as crisp as expected. A few mentioned occasional blurriness when zooming in on distant subjects, especially in challenging lighting conditions.
Night Vision
91%
The true color night vision is a standout feature, with a warm 3000K light that enhances clarity and detail even in complete darkness. Users have noted that the camera's F1.0 aperture and advanced HDR technology provide clear and vivid footage, making it a reliable choice for nighttime surveillance.
Some users experienced a slight reduction in detail during very low-light conditions, where the color night vision was less effective than expected. While generally good, a few reviewers mentioned that the quality could suffer in extreme nighttime environments, requiring adjustments for optimal performance.
Ease of Installation
89%
The Power over Ethernet (PoE) setup is highly appreciated for simplifying the installation process. Users mention that the plug-and-play system allows for a quick and seamless setup, especially for those without extensive technical experience. The included instructions are clear, and the setup is hassle-free for most buyers.
A few users noted difficulties when trying to integrate the camera into pre-existing security setups, especially when dealing with network configurations. Some reported minor challenges with the initial wiring and connection process, though these issues were mostly related to their specific home network setups.
AI Motion Detection
78%
22%
The AI-based motion detection that identifies humans, vehicles, and animals has been widely praised for improving the accuracy of alerts. Many users find this feature helpful in filtering out irrelevant motion, which reduces false alarms and enhances the camera's overall effectiveness in real-world scenarios.
Some users felt that the AI detection could use further refinement, as a few reported instances where the camera missed detecting certain objects or incorrectly identified movements. A small number of reviews mentioned delays in motion detection or alerts, especially when objects moved quickly across the field of view.
Build Quality
92%
The robust, weatherproof build is designed to withstand harsh conditions, earning praise for its durability. Users have appreciated the IP67 rating, which ensures the camera performs well in rain or snow. The overall construction feels solid, giving users confidence that it will last in outdoor environments.
While the build quality is solid, some users noted that the camera's size might be too bulky for certain installation locations. A few also mentioned that the camera could feel heavy for wall mounting in more delicate setups, although this wasn’t a widespread issue.
App Performance
70%
30%
The camera app is generally intuitive and easy to use, with many users appreciating the straightforward interface and functionality. The app allows for remote viewing, notifications, and settings adjustments, adding convenience for users who want to monitor their property on the go.
Several users expressed frustration with the app's occasional connectivity issues, with some unable to access live footage or receiving delayed notifications. Some reviews mentioned that app performance is inconsistent, with occasional crashes or freezing, particularly during heavy use.
Weather Resistance
93%
The camera's IP67 waterproof rating ensures that it can handle extreme weather conditions, from heavy rain to snowstorms, making it suitable for year-round use. Users have reported that the camera continues to perform reliably in all seasons, even in outdoor environments with fluctuating temperatures.
Despite the camera's robust design, a few users mentioned that the lens or casing could collect moisture during particularly heavy rainfall, leading to potential image distortion. However, this issue was isolated to a few specific cases and did not affect the majority of users.
Spotlight and Siren Effectiveness
85%
The built-in spotlight and siren are frequently praised for adding an extra layer of security. The spotlight's 400-lumen brightness effectively illuminates areas of interest, while the customizable siren helps deter potential intruders, providing both visual and auditory deterrents.
A few users reported that the siren could be louder, as it may not be noticeable from a distance in noisy environments. Additionally, some users noted that the spotlight's effectiveness might diminish in larger areas where its light doesn’t cover a wide enough range.
Storage Capacity
80%
20%
Support for microSD cards up to 512GB is a useful feature for users who want continuous recording without relying on cloud storage. Many users appreciate the ability to store a significant amount of footage locally, reducing the need for a subscription-based service.
Some users mentioned that the storage capacity might not be sufficient for long-term use, particularly in areas with high activity. While 512GB is decent, some felt that the camera could benefit from cloud storage integration or a larger local storage option for extended recording periods.
Value for Money
91%
Users generally agree that the camera offers excellent value for money, given its range of features such as 4K resolution, AI motion detection, and weatherproofing. Many feel that it provides premium-level security capabilities at a price point that is competitive within the market.
A small number of users felt that the camera's performance didn’t justify the price, especially considering some of the connectivity and motion detection issues. However, these opinions were in the minority, and most reviews highlighted its strong overall value.
Customer Support
76%
24%
Several users reported that REOLINK’s customer support team was responsive and helpful when issues arose, particularly with setup or app troubleshooting. Support is available across multiple channels, which adds convenience for users needing assistance.
Some users have expressed dissatisfaction with the response times or the quality of support provided, particularly for more complex technical issues. A few reviews mentioned that the customer service experience was less than ideal, with delayed replies or inadequate solutions provided.
Connectivity and App Setup
68%
32%
Many users found the initial camera setup straightforward, with easy integration into their home network. The app’s ability to manage multiple cameras and customize settings was also appreciated by those with multiple devices in their setup.
Connectivity and app setup have been a source of frustration for some users. Issues such as slow syncing, dropped connections, and difficulties with Wi-Fi configuration were reported frequently. These challenges made the initial setup process more time-consuming than expected for certain users.

Suitable for:

The REOLINK CX820 4K PoE Security Camera is ideal for homeowners and small business owners who need a reliable and easy-to-install security solution. Those seeking high-quality surveillance with 4K resolution, color night vision, and AI-driven motion detection for human, vehicle, and animal recognition will benefit the most. It’s also well-suited for users who want a weatherproof camera that can withstand various environmental conditions, as it offers an IP67 rating. This device is particularly appealing to those who prefer a straightforward plug-and-play setup with Power over Ethernet (PoE), ensuring minimal wiring and quick installation without sacrificing performance or durability.

Not suitable for:

However, the REOLINK CX820 may not be the best choice for users seeking advanced app performance or integration with existing security systems. Some users have reported issues with connectivity, especially with the app, and others have experienced motion detection accuracy problems. It may also fall short for those who need larger storage capacity, as the local microSD storage might not be sufficient for long-term, high-traffic areas. Users in very low-light environments might find the night vision less effective than expected in certain conditions, and those looking for a more compact or easily hidden camera may not find its design ideal.

Specifications

  • Resolution: Offers 3840x2160 (8MP) resolution at 25 frames per second, delivering clear and detailed 4K video footage.
  • Night Vision: Features true color night vision with a 3000K warm light, ensuring clear, vibrant images in low light conditions.
  • Aperture: Equipped with a super aperture of F1.0 for enhanced light sensitivity, improving image clarity at night.
  • Field of View: Provides a wide viewing angle with a horizontal field of view of 93.2°, vertical of 48.2°, and a diagonal of 111.6°.
  • Motion Detection: Uses AI-powered motion detection for humans, vehicles, and animals, improving the accuracy of alerts and notifications.
  • Power Supply: Supports Power over Ethernet (PoE), simplifying installation by combining power and data transmission over a single cable.
  • Waterproof Rating: Built with an IP67 rating, this camera is waterproof and dustproof, making it suitable for outdoor use in harsh conditions.
  • Storage Capacity: Supports microSD cards up to 512GB for local storage, allowing continuous recording without requiring cloud storage.
  • Compression: Uses H.265 video compression, which reduces file sizes while maintaining high video quality.
  • Simultaneous Streams: Supports up to 12 simultaneous video streams (2 main and 10 substreams) for flexible viewing options across multiple devices.
  • Built-in Spotlight: Equipped with a built-in 3-piece spotlight (2.8W each) that provides 400 lumens of illumination for enhanced security at night.
  • Siren Alarm: Features a customizable siren alarm with light alerts, allowing for audible and visual deterrence against intruders.
  • Connectivity: Compatible with Windows, Mac, iOS, and Android operating systems for easy access and control from various devices.
  • Audio: Supports two-way audio, allowing users to communicate through the camera when needed.
  • Dimensions: Compact design with dimensions suitable for versatile mounting options both indoors and outdoors.
  • Operating Temperature: Rated to operate in temperatures ranging from -10°C to 55°C, ensuring reliable performance in a variety of climates.
  • Mounting Options: Can be easily mounted on walls or ceilings for flexible installation, making it ideal for both home and business environments.
  • Software Support: Supports REOLINK's app and desktop software for remote viewing, configuration, and management of the camera.

FAQ

Setting up the REOLINK CX820 is simple with its Power over Ethernet (PoE) functionality. You just need to connect the camera to your network using a single Ethernet cable that handles both power and data. Afterward, use the REOLINK app or desktop software to finalize the setup and adjust your camera’s settings.

This camera supports microSD cards up to 512GB for local storage, allowing you to store continuous recordings. The large capacity ensures you won’t run out of space quickly, especially for monitoring busy areas.

Yes, the REOLINK CX820 features color night vision, thanks to its F1.0 super aperture and 3000K warm light. This allows for clear, vibrant images in low-light conditions, ensuring that you can still capture detailed footage even after dark.

Absolutely. With an IP67 waterproof rating, the REOLINK CX820 is built to withstand harsh weather conditions, including heavy rain and dust. It’s ideal for use in outdoor environments, ensuring reliable performance even in challenging conditions.

The REOLINK CX820 has a wide field of view with horizontal coverage of 93.2°, vertical of 48.2°, and a diagonal of 111.6°. This wide coverage allows you to monitor a large area, making it ideal for home or small business security setups.

Yes, the REOLINK CX820 supports AI-based motion detection for people, vehicles, and animals. While many users find the detection helpful, some feedback suggests that motion detection accuracy could be improved in certain scenarios, such as during high traffic.

You can access the camera’s footage remotely via the REOLINK app or desktop software, which supports both iOS and Android devices, as well as Windows and Mac computers. Just make sure your camera is connected to your home or business network for remote access.

Currently, the REOLINK CX820 does not directly integrate with Alexa or Google Home. However, you can view the live stream and manage the camera via the REOLINK app, making it a practical choice for users who prioritize smartphone control.

Some users report occasional connectivity issues with the REOLINK app, as well as motion detection errors. If you're experiencing these issues, ensure that the camera’s firmware is up to date, and check the strength of your internet connection. Additionally, resetting the camera can sometimes resolve app connection problems.

Yes, the REOLINK CX820 is versatile and works well for both home and small business security. Its high-quality 4K resolution, AI motion detection, and easy PoE installation make it a reliable option for securing both residential and commercial properties.