(the cost of converting the local currency amount of the place of consumption into the foreign currency of your credit card), this cost will not be displayed on your bill alone, but will only be displayed on your consumption amount after you summarize it. Therefore, if the settlement party can directly settle the account in the foreign currency of your card, then you don't have to pay the handling fee. So, ask the payee when you check out.
The cheapest thing at Dubai International Airport is a watch. If you buy it with confidence, it will be at least 30% cheaper than in China, and even 50% cheaper when there are activities. All the watches sold here include 1 year international warranty. The other thing is clothes, and they are wrapped. Cosmetics are more expensive than those in Beijing, Shanghai and Hong Kong.