1. Watches: The minimum discount is 1% in general shopping malls, and almost 7.5% in duty-free shops.

2. Cosmetics and skin care products: It is most cost-effective to buy cosmetics and skin care products in duty-free shops, and you can enjoy discounts when ordering.

3. Bags: Sometimes there will be discounts, but don't buy bags with a unit price of more than 8, yuan, and you have to pay extra taxes, which is not cost-effective.

4. Sunglasses: Don't buy sunglasses online, you must try them, so it's best to buy them in a duty-free shop.

5. Jewelry: Sanya Duty Free Shop also offers discounts for jewelry products.

In addition, it is more cost-effective to go to Sanya Duty Free Shop to buy perfume, scented candles and other commodities.