concious, conscientious, intelligent

understanding, having understood; intelligent, quick, wise, clever; expert

intelligent, bright, clever

intelligent, having a good memory

intelligent, comprehending, conscientious

to appear, seem; to shine, sparkle; to smart, have a pricking pain

smart phone, touch screen phone

quick, smart, prompt

sensible, wise, smart, well-behaved

a regular cell-phone (non-smart phone)

bright, clever, quick-witted, quick-wittedness

alert, clever

a quick, clever, agile, bright man; a swindler, a fraud

penetrating, shrewd, understanding something to a fine degree

astute, crafty, clever, shrewd; adjustment, tweaking, tightening; assay (of precious metals); touchstone (of a jewler); standard, criterion