Is it cost-effective to travel to Japan to buy a laptop?

No problem, you don't have to pay taxes, and your personal belongings don't have to pay taxes.

But you can only take one. If you bring too much, you have to pay taxes.

It is no problem to install a Chinese system. These are all easy to handle.

It is important for you to buy a brand that can also be bought in China.

And there must be a global warranty.

Otherwise, it will be in trouble if it breaks down after returning home.

Also, Japanese computer keyboards are all in Japanese, so pay attention to this.