That jump comes on top of a 51 increase in dollar sales of smartwatches for the full fausses Richard Mille rm 030 year in 2018 repliki Richard Mille rm 21 and a 61 increase in unit sales according to NPD. NPD estimates the size of the U.S. smartwatch market for 2018 at nearly 5 billion. The January-through-June data reinforces the conclusion of an NPD report on smartwatches issued in February smartwatches turned a Replica Richard Mille uhren corner in the U.S. last year and have gained acceptance by the mainstream American consumer.