Kristof81 on 17 July 2017
Just to close the gap (circa 26 million) in three years, Switch would have to sell on average over 160,000 units extra per week. On average XB1 sells 150k per week. So to outsell XB by mid 2020, we would need to see 300k+/w or 15 million units per year ... considering that XB will keep selling at the current, consistent rate.
