GBH Insights company took a research in order to create a ranking of devices that were sold in the biggest amount during 2017. iPhone took first place with number of 233 million units sold during whole year. The advantage of the Apple's device over the other places is devastating, because devices from the second place (Samsung Galaxy S8 and Note 8) were sold 33 million times. On third place GBH Insights located Amazon Echo Dot with amount of 24 million sold units, on fourth we can see Apple Watch with amount of 20 million sold units, and fifth place is occupied by console - Nintendo Switch, which was sold 15 million times.

source