In the smartphone era, the steady sales increase of camera phones caused point-and-shoot camera sales to peak about 2010 and decline thereafter.
Most model lines improve their cameras every year or two.
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Most smartphones only have a menu choice to start a camera application program and an on-screen button to activate the shutter.
Some also have a separate camera button, for quickness and convenience.
Some of camera phones even use more expensive Back Side Illuminated CMOS which uses energy lesser than CMOS, although more expensive than CMOS and CCD.