Camera is able to capture photographs and usually videos, The most important characteristics of a camera are the resolution (measured in megapixels), lens focus type (fixed or automatic), higher megapixel cameras are known to capture higher quality photos, but not always a good measurement of the photos quality.
21 MP, f/1.8, laser & phase detection autofocus, OIS, dual-LED (dual tone) flash
2160p@30fps, 1080p@60fps, 1080p@30fps, HDR
5 MP, f/2.2, 1.4 µm pixel size, LED flash, 1080p
1.12 µm pixel size, geo-tagging, touch focus, face detection, panorama, HDR