This AMOLED smartwatch with NFC and IP68 costs just $23

[Redaktion]

Although there are likely to be some major question marks despite the enticing marketing claims, the Valdus VD40 Pro may be worth a look for some buyers due to its extremely low price and good looks. In any case, the financial risk is not particularly high.

https://www.notebookcheck.net/This-AMOLED-smartwatch-with-NFC-and-IP68-costs-just-23.1306840.0.html

[you are the product]

AFAIK, Bluetooth can be used to collect/send data, so you may be the product.