Quickly
Delivered in perfect packaging condition.
Charging and connecting to the phone... and confirming all functions are working normally.
It's like a plastic ring, so there's some disappointment.
Using it for a few days
Accuracy of Functionality
Battery life and other aspects are scheduled for verification.

I will update the review after use.

Nice ring. As a jewelry and gadget

I received the refund. But it took too long.
I bought another one just like it and it was more expensive.

The amount has not been refunded yet, there is a delay in returning the product.

This ring with display is really amazing.
You can see the time, battery level, heart rate, and steps, and it's quite similar to my Samsung watch. And the sleep was also reasonably accurate. My Samsung ring is broken and I need a temporary replacement until mine is hopefully made. But actually, I find this one much prettier :).
I am very happy with this smart ring top.