The purchase weight is the same, the specifications are different, and the tax paid when purchasing is the same. There is no difference. If you accumulate for a long time, you can choose two pieces as heirlooms and gifts in the future. If you make short-term or medium-term investments, it has nothing to do with specifications. Futures and spot are two investment methods. Futures gold investment has a threshold, measured by the difference between import and export, and physical delivery after the contract expires. Spot gold is traded online in the form of leverage ratio. These two risks are greater than buying investment gold bars, which require professional knowledge and understanding of the laws of the gold market. Just coming into contact with precious metals investment, it is suitable to buy physical gold or paper gold. If you buy a small amount for long-term investment, it is better to buy investment gold bars.