For Yuzo-sama only - Smart Ring Black R13, Finger Circumference 7cm

Black smart ring, CE marked, includes charging case, box, instruction manual, charging cable, etc.
Can display current time, steps, sleep duration, battery level, etc. (Initially displayed by long-pressing the touch area, then switch displays by touching).
As shown in the photos, a finger circumference of about 7cm seems to be a perfect fit. (It was a perfect fit for my index finger).
You switch the display content by touching the mark on the ring, but I think touching with your thumb is the smartest way, so I recommend wearing it on your index finger. You can switch between right-hand and left-hand modes in the app.
Since it's a ring, it will inevitably bump into things, so there are likely minor scratches. However, there are no noticeable scratches or dents.
It charges quickly to 100%, but the battery also drains quickly, lasting about 2 days. (I assume this is unavoidable given the small battery size).
By installing the app and syncing, you can collect various health data. The accuracy is about as expected.
If you dislike wearing watches, this is convenient as you can check the time with just a finger on one hand. Also, since it connects to your smartphone via Bluetooth, the time is accurate.
How about trying it out if you're curious?

- Model: Smart Ring
- Color: Black
- Features: CE Marked
- Accessories: Charging Case

First, please scan the QR code to install the app. (Download and install the apk file. Then, connect to the ring via Bluetooth from the app.) If you are unsure about these steps, you may want to refrain from purchasing.

We plan to ship via Yu-Packet Post with simple packaging.

Thank you for looking.