Camera hardware explained
A camera is more than megapixels.
What it means
A camera is more than megapixels.
What OIS can do
OIS helps steady the lens; it cannot stop a moving subject.
Choose the right lens
Telephoto and ultrawide lenses serve different purposes.
Look beyond the diagram
Our diagram explains hardware; it is not a camera sample or test.
Before you buy
OIS reduces hand shake, but cannot freeze a moving child or pet. Megapixels do not prove photo quality.
OIS reduces hand shake, but cannot freeze a moving child or pet. Megapixels do not prove photo quality.
A 200 MP camera does not automatically beat a 50 MP one. The sensor size, lens and processing matter more than the pixel count.
What helps most
Optical stabilisation (OIS) on the main camera gives sharper night photos and steadier video. A telephoto lens gives real zoom for distant subjects. An ultrawide fits more into group photos and buildings.
What helps least
2 MP macro and depth cameras are often added to make a phone look like it has more cameras. They rarely improve photos.
If camera quality matters a lot, watch sample videos and night photos from independent reviewers before you buy. This guide lists verified hardware; it does not run camera tests.
Updated 6 Oct 2026. Illustrations explain concepts; they are not product tests.