What brand of GPS locator is good? What about Ian and Gu Mi's followers?

1, this question has been said many times, and it is really difficult to choose a brand. Besides, you asked these two later, and I'm sure you also checked, so choose one.

2. Aichean should be the largest gps locator brand in China at present. If you choose this, there will be no mistake. After all, the brand is guaranteed; If you are a follower of Gu Mi, it should be the technology from Gu Mi, and they developed Kumiko, so generally speaking, if you choose one of them, there should be no problem.