Apple has shipped a record 18 million smartwatches in 2017 and almost half of those came in Q4 - 8 million. Coincidentally, that's also a record for most shipped smart wearables for a single quarter, by any maker.
Out of the total 18 million shipped Apple Watches, close to 9 million were the latest Series 3. According to Canalys data the LTE-powered Apple Watch Series 3 is the fastest-selling LTE wearable on the market, totaling 1.6 million units shipped.
Apple's Q4 numbers were a solid 32% higher year over year than Q4 of 2016 while 2017 as a whole saw 54% more shipped Apple Watches than 2016.