The number of smart speakers in homes and businesses will almost double this year, and within a couple of years these chatty new devices will likely outnumber our former gadget of choice, the tablet. There will be roughly 208 million smart speakers, like Amazon's Echo and Google Home, in use around the world by the end of this year, up from 114 million last year (82.4% growth), according to a forecast from Canalys. The tech industry analyst firm predicts that smart speakers will soon overtake tablets, probably next year. Although Canalys sees rapid growth in smart speakers, it predicts a gradual decline in tablets over the period covered by the forecast. One reason for the decline in tablets may be that smart speakers are taking over some of their functions in the home, such as controlling lights or playing music.