Link for Reolink wifi doorbell on Amazon US:
https://www.amazon.com/REOLINK-Doorbell-Detection-Storage-Assistant/dp/B0B7S3JSG7
Looks like it is available to ship now...
Check amazon - they tend to have it in stock more often. If you're in the US it's actually at a great price too for the wifi version:
https://www.amazon.com/REOLINK-Doorbell-Detection-Storage-Assistant/dp/B0B7S3JSG7/