A 4K security camera records 8 megapixels, which is four times the pixels of 1080p and double a 4 megapixel (2K) camera, so it shows more detail at a distance. The trade-off is storage and bandwidth: 4K needs a bigger recorder and a network that can carry it. Choose 4K for gates, parking areas, long views and plate or face detail. For a front door or a small room, 4 megapixel is often enough.
PCBy the Pixl Canada install team. Updated . 5 min read.
- 1080p, 2K and 4K compared in pixels
- Where 4K pays off and where it does not
- Storage and network impact
- Free written quote for wired CCTV
What is the difference between 1080p, 2K and 4K security cameras?
The difference is pixel count. More pixels give more detail when you zoom into a recording. Resolution is not the only factor: lens, sensor and lighting also decide how sharp a picture is.
| Name | Resolution | Megapixels | Pixels vs 1080p |
|---|---|---|---|
| 1080p | 1920 × 1080 | About 2 MP | 1× |
| 2K (4 MP) | 2560 × 1440 | About 4 MP | About 1.8× |
| 4K (8 MP) | 3840 × 2160 | About 8 MP | 4× |
When is a 4K camera worth it?
| Situation | 4K? | Why |
|---|---|---|
| Driveway, gate or parking area | Yes | Long distances need extra detail to read plates and faces |
| Wide yard or warehouse yard | Yes | One wide camera covers more ground |
| Front door or small room | Often not needed | 4 MP is usually enough at short distances |
| Cameras on a weak network | Be careful | 4K streams use more bandwidth |
For plate capture, resolution helps but angle and shutter speed matter more. See the licence plate camera guide.
How much more storage and bandwidth does 4K need?
More pixels mean more data. A 4K stream uses roughly double the data of a 4 MP stream and more than that versus 1080p at the same settings, so recorders fill faster. Your actual storage depends on the camera’s compression, frame rate and how much motion there is. Tell your installer how many days you want to keep, and size the recorder for it. See NVR vs DVR and PoE camera systems.
How should you choose?
- List the jobs. For each camera, decide what you need to see: a face, a plate, a person in a yard.
- Measure the distance from the camera to the target.
- Use 4K for long or wide views and 4 MP for short ones.
- Check the recorder and network can handle the streams and the days of storage you want.
- Test at night. Low-light performance matters as much as resolution.
Planning a business system? See commercial camera installation cost and commercial CCTV installation. Wired CCTV quotes are free, and you pay after the job.
4K security cameras: frequently asked questions
Is a 4K security camera worth it?
For gates, parking areas and long views, yes. For short views such as a front door, 4 MP is often enough.
What is the difference between 2K and 4K security cameras?
2K is about 4 megapixels and 4K is about 8, so 4K has twice the pixels and shows more detail at a distance.
Does 4K use more storage?
Yes. 4K recordings are larger, so the recorder fills faster. Size the recorder for the days you want to keep.
Do I need a special recorder for 4K cameras?
You need a recorder and switch that support the resolution and enough storage and bandwidth.
Is higher resolution always better?
No. Lens, sensor and lighting matter too, and higher resolution costs storage and bandwidth.
Does Pixl install 4K cameras?
Send photos of the site to (587) 899-7495 and we tell you what fits. Wired CCTV quotes are free.
Not sure what resolution you need?
Send photos and the distances. We recommend the right mix. Wired CCTV quotes are free, and you pay after the job.
NVR vs DVR
Where to place security cameras
Commercial camera installation cost
Security camera for business
Sources and method. Resolution and pixel counts are standard definitions (4K = 3840 × 2160, 1080p = 1920 × 1080, 2K here means 2560 × 1440). Storage comparisons are relative and depend on compression, frame rate and motion, so ask your installer to size storage for your site. No prices are quoted.
About Pixl Canada. Pixl Canada is an installation company based in Edmonton, Alberta, serving cities across Canada with TV mounting, security cameras, appliance installation and smart home setup. Call or text (587) 899-7495. Open Monday to Saturday 8am to 8pm and Sunday 9am to 7pm.