When choosing a security camera, resolution is a key factor. There is always a debate between 2K vs 1080p. Is 2k the same as 1080p? Can I identify the difference between 1080p and 2k? Understanding how these resolutions impact video clarity and overall security can help you make the best choice for your needs.
This article will delve into what resolution means for security cameras and compare 2K vs 1080p to guide you in selecting the most suitable option for your security system.
What Does Resolution Mean in Security Cameras?
Screen resolution refers to the number of pixels and their density projected onto your display. The resolution is typically represented by two numbers: the first indicating the number of horizontal pixels and the second referring to the number of vertical pixels. For example, a 1920x1080 resolution, that is 1080p or Full HD, means the screen displays 1920 pixels horizontally and 1080 pixels vertically. Generally speaking, the higher the pixel count, the better the image quality.
In security cameras, higher resolution means more precise identification of people, objects, and details, especially in large areas or when zooming in on footage. However, higher resolution also requires more storage space and potentially higher bandwidth for video streaming.
What is 1080P?
A 1080p resolution, also known as Full HD, means the image has 1920 pixels horizontally by 1080 vertically (1920x1080), roughly twice the resolution of 720p but just a quarter of 4K. Here the "p" stands for progressive scan, i.e. non-interlaced. The term usually assumes a widescreen aspect ratio of 16:9, implying a resolution of 2.1 megapixels.
What is 2K?
2K displays are those whose width falls in the 2,000-pixel range. According to DCI (Digital Cinema Initiatives) standard, the common measurement is 2048 x 1080.
Many people confuse 2K with 1080p (1920 x 1080) as they have the same vertical pixels, but actually the two differ in width and clarity. 2K offers a bit more horizontal space and a slightly sharper picture, especially noticeable on larger screens.
In the consumer world, people started referring 2560x1440 as "2K", which is actually QHD (Quad HD) and not true 2K. That’s a higher pixel count than standard 2K (2048 x 1080). The aspect ratios differ as well QHD is typically 16:9, while 2K leans toward cinematic formats like 17:9. This phenomenon may come from marketing and the tendency to round up resolutions based on their horizontal pixel count. It's harder to sell a monitor if you put 2.5K on the box instead of a nice whole number like 2K.
1080p vs. 2K: Comparison Table
If you seek more detailed and visual differences between 1080p and 2K. Take a look at the comparison table featuring 1080p and 2K.
1080p vs. 2K: Comparison Table
| 1080p | 2K | |
|---|---|---|
| Total Pixels | ~2.1 million (1920 x 1080) | ~2.2 million(1920 x 1080) ~3.7 million (2560x1440) |
| Image Quality | Clear for basic use | Significantly sharper than 1080p |
| Ideal Screen Size | Up to 40-50 inches | Best from 27 inches |
| Field of View | Standard but depends on the lens and sensor | Often wider, but depends on the lens and sensor |
| Graphics Processing Power Required | Low | Medium |
| Media Availability at Resolution | Most online videos & Blu-ray discs | Good availability of 2K content |
| Storage Space Required | Low file sizes | Medium file sizes, more storage |
| Smooth Playback | Easy | Moderately demanding |
| Cost | Most affordable high-definition displays | Available at moderate prices |
| Best For | Small spaces like homes, hallways, and offices | Driveways, parking lots, and retail stores needing mid-range monitoring |
2K and 1080p Security Cameras: How to Choose?
When comparing a 1080p vs 2k security camera, several factors come into play. Both have their advantages, depending on the specific needs of your security system.
Image Quality
1080p: For those who only need basic surveillance for small offices, retail stores and residential properties, 1080p can provide relatively clear visuals but may struggle with fine details at longer distances
2k: As 2K security cameras can render images with over twice the number of pixels as 1080p cameras, it offers better details than 1080p. It is more suitable for driveways, parking lots or mixed-use surveillance.
Storage and Bandwidth Requirements
1080p: For users with limited internet speed or data caps, 1080p video offers a good balance between image quality and data efficiency. It requires less storage space, allowing for longer recording periods and less frequent overwriting of footage. Like bandwidth requirements for streaming 1080p video range from 5 to 8 Mbps.
2k: 2K security cameras will consume 2-3x more storage than 1080p cameras since their video contains many more pixels. A Large microSD cards or cloud storage become necessary for continuous capture. Bandwidth needs also increase, typically falling between 10 and 16 Mbps per stream.
However, thanks to efficient compression technologies like H.265, the difference in storage and bandwidth remains manageable. For users who prioritize sharper footage—such as reading license plates from a distance or covering wide areas—this trade-off is often worthwhile.
Chart adapted from Montavue, based on data provided by Western Digital, a leading hard drive manufacturer, provides a very useful storage chart for 1080P and 2K.
1080p vs 2K H.265 Compression at 15fps Storage Chart (Terabytes):
| Number of days (across) x Number of Cameras (down) | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| 1 Camera | 0.067 / 0.134 | 0.13 / 0.27 | 0.20 / 0.40 | 0.27 / 0.54 | 0.34 / 0.67 | 0.40 / 0.80 | 0.47 / 0.94 |
| 2 Cameras | 0.13 / 0.27 | 0.27 / 0.54 | 0.40 / 0.80 | 0.54 / 1.07 | 0.67 / 1.34 | 0.80 / 1.61 | 0.94 / 1.88 |
| 3 Cameras | 0.20 / 0.40 | 0.40 / 0.80 | 0.60 / 1.21 | 0.80 / 1.61 | 1.01 / 2.01 | 1.21 / 2.41 | 1.41 / 2.81 |
| 4 Cameras | 0.27 / 0.50 | 0.50 / 1.07 | 0.80 / 1.61 | 1.07 / 2.14 | 1.34 / 2.68 | 1.61 / 3.22 | 1.88 / 3.75 |
| 5 Cameras | 0.34 / 0.67 | 0.60 / 1.34 | 1.01 / 2.01 | 1.34 / 2.68 | 1.68 / 3.35 | 2.01 / 4.02 | 2.35 / 4.69 |
| 6 Cameras | 0.40 / 0.80 | 0.80 / 1.61 | 1.21 / 2.41 | 1.61 / 3.22 | 2.01 / 4.02 | 2.41 / 4.82 | 2.81 / 5.63 |
| 7 Cameras | 0.47 / 0.94 | 0.94 / 1.88 | 1.41 / 2.81 | 1.88 / 3.75 | 2.35 / 4.69 | 2.81 / 5.63 | 3.28 / 6.57 |
Field of View
1080p: 1080p cameras can cover compact spaces effectively and provide adequate clarity for basic monitoring. While the field of view depends on the lens rather than resolution, 1080p may lose detail at the edges or over long distances with wide-angle lenses. Covering larger areas typically requires multiple 1080p units.
2k: 2K cameras offer more detail within the same field of view. Although the coverage area is identical to 1080p when using the same lens, the image remains sharper at the edges and in the distance. This makes 2K a better choice for medium-sized areas with fewer units—ideal when both wide coverage and high clarity are required.
Cost
1080p: 1080p cameras are generally more budget-friendly and still provide reliable performance.
2k: 2K cameras usually cost 20-30% more than 1080p systems but prices have become more accessible in recent years. If you’re monitoring larger spaces or want the added clarity, the upgrade to 2K is often a smart long-term investment.
When deciding between 2K resolution vs 1080p, it's essential to consider the specific requirements of your security system. While 1080p cameras may be sufficient for many users, 2K cameras offer enhanced capabilities that can provide an extra layer of security, particularly in demanding environments.
Best 1080p Security Camera Recommendation - eufyCam S210
If you are seeking budget-friendly security cameras to fulfill your basic surveillance needs, the eufyCam S210 can offer excellent 1080p HD video quality, capturing relatively clear and detailed footage. It excels in night vision, allowing for clear visibility in low-light conditions. The 135° diagonal field of view allows you to see exactly what is happening in and around your home.
Its advanced human detection technology helps minimize false alerts by accurately distinguishing between people and other moving objects. However, the eufyCam 2C add-on camera requires a HomeBase 2 to operate. Please note, the camera alone will not work.
Best 2K Security Camera Recommendation - eufy Floodlight Camera E340
If you find the high storage and bandwidth requirements of 4K resolution are overwhelming, you still want to upgrade 2K resolution for clearer image and more details. eufy Floodlight Camera E340 suits your needs.
With dual 2K/3K Cameras, the 2K telephoto camera captures details from up to 50 ft (15 m) away, while the 3K wide-angle camera focuses on the big picture. Dual cameras provide 8× hybrid zoom and up to 3K resolution. Note: The max resolution will be 2K when using AI Tracking or Dual Views. You can also enjoy 360° Camera Coverage for a complete view. AI identifies people and tracks their movements. Auto-patrols on a schedule.
Best 4K Security Camera Recommendation - eufyCam S3 Pro
With advancements in resolution technology, 4K security cameras can deliver exceptional detail and are designed for large areas where high-definition footage is critical. If you need wide coverage and excellent image quality even for a long distance and zoom in with no worries about storage and bandwidth, consider eufyCam S3 Pro.
Combined with MaxColor Vision™ technology, eufyCam S3 Pro captures exceptionally detailed surveillance footage in every frame, providing day-like clarity even in the darkest night. Its 4K ultra-HD resolution allows you to zoom in on faces and even read license plates clearly from up to 30 ft away, even at night. This kind of clarity ensures you won’t miss critical evidence. The dual motion detection system, combining radar and passive infrared (PIR), accurately identifies human movement and reduces false alerts by 99%, guaranteeing that alerts are only triggered by major security events in specified areas.
Conclusion
In conclusion, the choice between 2K vs 1080p security cameras hinges on your specific needs and priorities. While 1080p offers solid performance at a lower cost, 2K provides enhanced detail and better zoom capabilities. Assessing factors such as image clarity, storage requirements, and budget will help you select the right camera for your security setup. By understanding these differences, you can make an informed decision to optimize your surveillance system's effectiveness.
FAQs
Is 2K resolution good enough?
Yes, 2K resolution is excellent for security cameras. It provides sharper and more detailed images than 1080p, making it easier to identify faces and objects. It's beneficial for larger areas or when high detail is needed, such as in commercial or high-security environments.
Is 2K better than 1080p for security cameras?
In most cases, 2K is better than 1080p for security cameras. It offers higher image clarity and more detail, which helps identify faces, read license plates, and monitor large areas. However, it also requires more storage and bandwidth, so consider your system's capacity before upgrading.
Can the human eye tell the difference between 1080p and 1440p?
Yes, but it depends on several factors. On a large monitor (24” or more), or if you're viewing up close, the difference becomes more obvious—2K shows more detail and less pixelation. Or if you’re trying to identify faces, license plates, or fine textures (like clothing or objects at a distance), 2K will generally give you a sharper image.
How does resolution affect field of view?
Field of view is the angular extent of the image scene, usually measured in degrees, and resolution is the number of pixels on target. It’s determined by the lens and sensor size, not by resolution. But given the same optics, scene and pixel size, more pixels give greater field of view as more pixels on target allows you to digitally zoom deeper into the image without pixilation, going from macro to micro without a zoom lens.
