The iPhone SE, which was unveiled a week ago during a special event, is apparently very popular in China. According to a report from CNBC, the new 4-inch smartphone has managed to grab more than 3.4 million reservations, with a little over one day to go before the reservation window closes. As always when talking about the Chinese market, you'll see most news outlets report this number as "pre-orders", however as a general rule in China these don't work like they do elsewhere. They're called reservations and no money changes hands before the actual purchase, unlike a 'western' pre-order...
Source: http://www.gsmarena.com/iphone_se_reportedly_nabs_more_than_34_million_reservations_in_china-news-17478.php