Resolution is only one part of image quality
More pixels can preserve more detail, but lens choice, mounting height, lighting, sensor quality, motion, and scene width determine whether that detail is useful.
Where each class fits
- 2MP: basic overview and low-cost replacement applications.
- 4MP and 5MP: strong general-purpose coverage for homes and businesses.
- 8MP / 4K: high-detail entrances, counters, wide scenes, and digital zoom after an event.
Choose for the evidence you need
Use the Camera Finder to compare cameras by megapixel, then check lens, illumination, analytics, and mounting style on the product page.