Comparing 2MP, 4MP, and 8MP Security Cameras

Which Is Better: 2MP, 4MP, or 8MP Security Cameras?

By GNC CCTV INSTALLATION AND SERVICES | Clarity Matters in Tiruppur's Security

"Sir, I want the highest resolution camera, but my budget is low." We hear this daily. Higher megapixels mean sharper images, but they also mean your hard drive fills up faster. Let's find your sweet spot.

What Does Megapixel (MP) Mean?

Resolution Model	Image Size	Our Comparison
2MP	1920 x 1080 pixels	Standard Full HD. Sufficient for a room or small shop.
4MP	2560 x 1440 pixels	Very high detail. Best for cash counters and parking lots.
8MP	3840 x 2160 pixels	4K Ultra HD. Almost forensic detail. For large factory floors.

The Storage Trade-off

A 1TB hard drive that records 2 weeks of 2MP video from 4 cameras will only record about 5 days if you swap those cameras for 4MP models. If you don't actually need crystal-clear zoom, you are just wasting hard drive space and money.

Our General Rules

• 2MP Cameras: Perfect for home interiors, corridors, and side walls. At night, 2MP sensors often capture slightly brighter images than 4MP sensors at the same price.
• 4MP Cameras: The ideal standard for outdoors now. You get a noticeably sharper face at 20 feet. We recommend mixing 4MP outdoors and 2MP indoors.
• 8MP Cameras: We install these at factory gates and covering large open compounds. You can zoom in to read a number plate from 40 meters away. Essential for large-scale commercial security.

📞 Let's find the right camera for your specific space: 8489158365