1. Sales method: Pre-sale mainly refers to the pre-sale of goods before they are officially listed, so as to obtain the sales data of goods in advance. Spot refers to the direct purchase of goods by customers after they are listed.

2. Price: The price of pre-sold goods is usually lower than the price after the official listing to attract consumers to book in advance, while the spot price is usually the official selling price.

3. Delivery time: Pre-sale goods usually need to wait until the goods are officially listed before delivery, while spot goods can usually be delivered immediately after the order is completed.