Most smartphones now have an option called HDR, which is short for High Dynamic Range. When you take a picture in HDR, your smartphone camera actually shoots three pictures at three different exposures. Your phone then combines these photos to create one composite image that will be sharper and have more vivid colours.
Try HDR when are taking pictures of landscapes or when you are shooting into the sun or another bright light source. Don’t use HDR for any pictures where there is motion as moving objects will be blurred, unless you want this effect, say for instance when you are taking pictures of a fountain or waterfall.