When 4K video technology arrived on the market, it revolutionized the way people viewed videos, movies, and images. The security and surveillance industries continue to greatly benefit from the invention of affordable 4K PoE cameras, which offer both high-quality video and simple installation. Currently, professional 4K cameras record the highest quality video in mass production to date, aiding in criminal prosecution and helping homeowners and business owners protect their property. Look no further than security cameras from CCTV Camera World if you're looking for top-of-the-line PoE security cameras to give you peace of mind.

You might wonder why, no matter where you look on the web, people are talking about 4K. Perhaps you're worried about the cost, uncertain about how to view the high resolution, or uncertain about where to start your search for the right type of camera for your needs. By the end of this article, you'll know what makes a surveillance cam 4K, how to choose the best 8MP (4K) security camera for your system at the right price, and the answers to all your UltraHD CCTV camera questions.

Avalonix Premium 4K Security Cameras

The term "4K" refers to the number of pixels in an image or video, also known as resolution. Resolution is how big an image is in layman terms; the larger the image, the more detail you can see as you zoom in. The higher the resolution, the larger the size of each video frame in security cameras. When it comes to security, having high-resolution cameras is important to capture as much detail as possible. CCTV Camera World's professional 4K PoE cameras, equipped with powerful image sensors and signal processors, offer some of the clearest and most detailed video quality available in the security camera market.

Whether you're a novice buying a new security camera system for your home or business or you're upgrading your older system from years ago, we've got you covered with everything you need to know about 4K surveillance cameras!

Contents

Security Camera Resolution Comparison: 4K vs. 2K vs. 1080p

Online 4K PoE camera shoppers may be curious about other resolutions and how they compare. Let’s dive into the differences between the most common resolutions you’ll find when shopping for surveillance cameras.

Common PoE camera resolutions and how they compare to 4K

*Keep in mind that the facial detail is based on the professional high-resolution PoE cameras we sell, which are fixed-lens cameras with an 85-degree view and daytime capture. During the night, you can expect each resolution to see faces roughly 15 to 25 feet less than during the day.

Real-Life Security Camera Resolution Comparison

We could go on and on about video resolution, but it’s easier to understand the differences by showing examples. We made the following infographic showcasing real-life images of video captured directly from security cameras. You'll notice how 4K looks crystal clear at most distances and provides enough detail to recognize a face and read text at 50 feet!

A comparison of the details for the most common security camera resolutions

Consideration for the Lower Resolutions

While we're focusing on the benefits of 4K security cameras, they might not always fit your budget or be absolutely necessary. If you don't want to see faces from a distance or are just watching wildlife, a budget-friendly 2K security camera or even a 5MP 3K camera might do the trick.

That's the fantastic thing about buying a customizable PoE camera system from CCTV Camera World—you can mix and match camera resolutions to utilize 4K where it's important to capture as much detail as possible and save money by using lower resolutions in areas where you don't need the best detail.

Not All Security Cameras are Made Equal

By now, you understand the differences between 4K and lower-resolution cameras. You concluded that 4K cameras are the best option for your home or business, and you've also done some research to find the lowest price. You've found some "deals" on Amazon or at your local Best Buy, and you're thinking of walking out with a system that says it's 4K but only costs a couple hundred bucks. Don’t do it! As the saying goes, “You get what you pay for.”

Although a system or cameras may claim they are 4K and spit out a video size of 3840x2160 pixels, there are huge differences in picture quality because of a particularly important part of a camera: the image sensor! The electrical components in cameras, known as image sensors, transform the light we see into a digital image for viewing or recording.

Many of the low-quality cameras and systems available from big box stores and giant e-commerce retailers have lower resolution image sensors (typically 4 or 5 MP) and use "interpolation" technology to upscale the lower resolution and produce "4K" video in order to keep costs low. This process results in low-cost camera recordings that are not truly 4K in quality.

While the difference in quality may not be apparent to the naked eye when comparing videos side-by-side, the difference is extremely obvious when digitally zoomed in. With true and good-quality 4K image sensors, there isn't as much pixelation when you enlarge the video using digital zoom. On a cheap camera that uses upscaled 4K, you’ll immediately notice that the video is blocky and pixelated, and it may even have glitches as the upscaling technology tries to fill in the blanks.

Image sensors aren’t the only thing that low-cost systems compromise on. We dive deeper into the image sensor problem and other significant differences in quality in our aptly named “Why Not to Buy Cheap Security Cameras” article.

At CCTV Camera World, we take quality very seriously. We test our security cameras for their image and build quality before they even make it onto the website.

The image below compares a video from one of our 4K bullet cameras, located on the left, with a low-cost camera from a system available on Amazon and Big Box Stores. They are both 4K resolution cameras, but as you can see, finer detail is missing from the cheaper camera on the right. In real-world use, having a cheap 4K camera is not going to provide the video you'll need when something happens.

4K comparison 30ft and 230ft from cameras

Reaping the Benefits: Why Choose a 4K Security Camera?

After confirming that 4K is the best security camera resolution, we can discuss in more detail why 4K video is so excellent for surveillance, as well as the other benefits that our UltraHD security cameras provide.

Enhanced Detail and Image Clarity

As we pointed out earlier, 4K PoE cameras come equipped with 8MP image sensors, allowing them to capture ultra-high-resolution video. Think about it like painting: it's a lot harder to add details on a small 4x6 postcard than on a big 30x40 canvas. Higher resolution means a bigger 'canvas' for catching all those details. With a 4K surveillance camera, you're getting a huge 'canvas' of 3840x2160 pixels, compared to 1920x1080 or 2560x1440.

4K video's high detail density results in noticeably better image clarity, especially when using the digital zoom feature present in our 4K security camera systems. Digital zoom allows you to choose a segment of the video and enlarge it using software.

When compared to lower resolutions, digital zoom is quite different. With lower resolutions, using digital zoom results in pixelated and blurry images. The reason is that stretching the image simply doesn't retain enough detail or have enough pixels to maintain image clarity. The beauty of 4K cameras is that they retain finer detail even when digitally zoomed in, making them a superior choice for surveillance needs.

Clearer Video at Night

It might seem obvious by now, but 4K security cams also really shine at night compared to lower-res ones (pun intended). In low light, every pixel counts. When night falls, 4K cameras really step up their game, capturing clear video. Lower-res cameras often produce grainy, noisy video at night that makes it more difficult to see the details that matter.

Besides high resolution, many 4K cameras come with advanced nightcapture technology. They use low-lux Starlight imaging sensors to work better in low light. These low-light sensors mean 4K cameras can still record in color mode with ambient lighting. Take advantage of the improved contrast and nighttime clarity to ensure you don't miss out on any vital details.

4K camera comparison at night with IR light

Improved Facial Recognition

Capturing facial details accurately is key when you have security cameras. Sure, it's useful for seeing who's at the door, but it can also be crucial in legal situations. This is where 4K cameras really come into play, with enough detail to capture unique features and facial expressions from a greater distance than lower resolutions. The level of detail can make all the difference when trying to identify someone for prosecution.

Faces are key evidence to show someone was there during a crime, fight, or accident. If things go to court, 4K camera footage can be the clear evidence you need. Unlike lower-res cameras that give you pixelated or blurry images, 4K cameras produce sharp, detailed images that hold up in court.

Additionally, with their high-res video, 4K cameras are ideal for today’s advanced facial recognition technology. AI technology helps identify threats and control access to secure areas. If capturing facial details with clarity is a priority, 4K cameras are your best bet.

CCTV Camera World's 4K Cameras Have AI Motion Detection

In addition to their high resolution, our 4K cameras feature AI detection that integrates seamlessly with our Network Video Recorders (NVRs). This isn't ordinary motion detection; it's a whole lot smarter and more accurate, resulting in fewer false alerts to your phone and less bogus recording compared to traditional video-based motion detection that can only look for changes in pixels.

Smart Motion Detection

Smart Motion Detection (SMD) is similar to traditional video-based motion detection but with a huge improvement. SMD only alerts you when it detects a human or vehicle, rather than triggering when any pixels change in the video. With SMD, you won't have as many false motion detection alerts and recordings caused by things like shadows, insects, or swaying branches as you would with old-school pixel-based motion detection.

SMD in Action on Avalonix Premium Series

Intrusion Detection and Tripwire

The most popular AI technologies our 4K cameras have include Intrusion Detection and Digital Tripwire features. These features provide the ability to draw digital boundaries on your camera's view, depending on the specific camera model. This type of AI is akin to having a virtual guard monitor your custom boundaries and trigger recording as soon as an object violates your rules.

Intrusion Detection in Action on Avalonix Premium Series Cameras

Face Detection

Some models also offer face detection as a feature. Cameras with this feature can detect when a face is present in the video. Face detection is particularly useful for verifying visitors and identifying employees or banned patrons.

Face Detection Example on Avalonix Premium Cameras

Commercial Analytics

Some 4K models also come with several analytic features that are useful in commercial settings. These features include:

  • Abandoned/Missing Object Detection: This feature can alert you if an object has been left unattended or if something has gone missing.
  • People Counting: an excellent tool for businesses looking to track and plan around customer traffic.
  • Heat Mapping: provides information about foot traffic patterns over time by showing areas of high and low activity.

Picking the Perfect 4K Camera

Choosing the ideal 4K camera for your system can be challenging due to the abundance of available options. Don’t worry; we’ll lay out some popular options to simplify your search and guide you on your journey. Each recommendation will include the key reasons why the camera is a beneficial choice, ensuring that you choose a 4K surveillance camera that's the perfect fit for your needs.

A collection of our 4K Premium Series cameras

Budget Beasts — IPC4K15, IPC4K15D, and IPC4K15ED

Maintaining a budget is one of the biggest concerns for most people when shopping for security cameras. Customers are looking for a high-quality system, but they don't want it to break the bank. Fortunately, we offer several options for professional-quality 4K network cameras at competitive prices.

Ultimate Series — IPC4K19, IPC4K19D, and IPC4K19ED

For areas where you require the absolute best video quality, consider our Ultimate series of 4K PoE cameras. These cameras stand a cut above the rest due to their top-notch image sensors, which offer more clarity and less noise than the budget options above. These Ultimate series cameras not only have the best image clarity but also feature Smart Motion Detection, visual tripwire, and intrusion detection, features found in most of our smart IP cameras.

Motorized Optical Zoom for Long Range — IPC4K15BMZ, IPC4KLRZBC

If you need to monitor a distant area of your property, such as the end of your driveway, our motorized zoom 4K camera is an excellent choice. This isn’t an average camera; it's got a motorized zoom lens that lets you tweak the field of view. That means you can go from a wide-angle shot to a focused close-up while at home or away using the remote viewing phone app.

Pan Tilt Zoom for Optimal Flexibility — IRPTZ4KAD, PTZ4K25AI, IPTZ4K40, IPTZ4K48ULT

Looking for a comprehensive solution when it comes to security cameras? Let us introduce you to our 4K PTZ (Pan-Tilt-Zoom) camera. This camera serves as a versatile tool in the field of surveillance, like a Swiss army knife. The camera offers more than just a static view. With controllable PTZ motors, you can pan from side to side, tilt up and down, and zoom in and out, all while enjoying the crisp detail that 4K resolution delivers. Want to watch that cheeky squirrel steal bird seed from your feeder? Perhaps you would like to inspect the car that has been parked in front of your business for a little too long. With our 4K PTZ camera, you're in full control and can cover every inch of your property without getting out of bed or leaving your office chair.

Witnessing 4K PoE cameras in Action: Seeing the Benefits

As the saying goes, “A picture is worth a thousand words.” We’re not here to simply talk about the power of 4K security cameras; we’ll also show you video taken from one. We recorded this video directly from our Ultimate Series 4K camera; it’s not just a stock video sample. You'll see how clearly it captures our cutout's face and the characters on the paper hanging around his neck. In this example, you can see what our 4K cameras provide. That's the kind of top-notch surveillance quality you can expect with our 4K cameras at your home or business. If the video looks blurry, it’s because YouTube is showing a lower resolution. Make sure you set the YouTube video quality to the highest possible using the gear icon at the bottom right of the video.

click to play the video

FAQs: Your 4K Questions Answered

Are 4K PoE cameras worth the investment?

The answer really depends on your budget and the objectives you've set for your surveillance system. Indeed, 4K cameras are the pinnacle of new security camera systems. However, if you choose to purchase a system from CCTV Camera World, you'll have the flexibility to mix and match resolutions to design the ideal system that not only fits your budget but also meets your specific needs. In areas where you need more than 40 feet of facial detail, opt for 4K cameras. For areas where detailed surveillance isn't as necessary, 2MP or 4MP cameras should be more than enough.

Can I use a 4K camera indoors and outdoors?

Most of the 4K security cameras on our website have a weather-resistant rating for outdoor use. You can use them both indoors and almost anywhere outdoors. An overhang is typically necessary for IP65 or IP66 cameras to prevent water pooling and weather-resistant gasket wear. However, not all cameras are designed for outdoor use, so be sure to review their specifications. Every camera on our website includes a feature list and specification sheet that provide information about its weather resistance rating.

What's the difference between a 4K camera and a standard 1080p camera?

As outlined in the Security Camera Resolution Comparison section of this article, 4K IP or PoE cameras record video that is roughly four times the size of 1080p cameras. The specifics can vary with each camera, but generally a 4K camera can identify faces from 50 to 70 feet away, while 1080p cameras can only see faces from 20 to 30 feet away. The section also includes a table illustrating the difference in resolution: 4K video has a resolution of 3840 x 2160, while 1080p video offers a resolution of 1920 x 1080.

Do 4K IP cameras require special wiring or installation?

Installing 4K IP security cameras is not too difficult. They don't require any special wiring, though the process will vary depending on the type of camera you purchase. You can run standard CAT5e or CAT6 Ethernet cables up to 328 feet, and they are compatible with 4K IP cameras. Equipment is also available to extend beyond 328 feet. While bullet cameras are usually easier to install than dome cameras, neither type is exceptionally difficult to install.

How much storage space does 4K surveillance require?

It’s difficult to give specific recommendations for the amount of storage space needed to record and store 4K video. A number of factors influence how much storage you may need, including, but not limited to:

  1. How many cameras?
  2. Before overwriting occurs, how long do you want the system to record?
  3. Do you want to record continuously, 24/7? Or only when AI, or motion detection, is activated?

Our Security NVR and DVR Hard Drive Calculator is an excellent tool to estimate the size of the internal drive you'll need. Simply input the number of cameras, their resolution, and the number of days you want to record continuously. The calculator will then display the "Total HDD Required."

You can round this number up or down to the nearest terabyte (TB) to determine what drive to purchase. If you plan to record only when motion or AI detection triggers, your required hard drive should be approximately 30–50% of the calculated size. For example, if the calculator recommends a 2TB drive for continuous recording from 4 cameras for 7 days, but your intention is to record only during motion detection for up to 7 days, a 1TB internal drive should suffice.

Matt Rossi is a Technical Support Manager at CCTV Camera World, a leading CCTV Camera distributor located in Buffalo, NY. He is a technical support expert for everything video surveillance related.

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