RENPHO Bluetooth Body Fat Scale
These look pretty much the same as mine - has its own app, which can link to Fitbit to pass the data. I then pass it from there to Cronometer, so it works nicely. Saves me entering the data (which would not happen).
Or pay a little more and get the USB-rechargable ones.
Looks good, I picked up this one a while back and appreciate it uses WiFi. Apart from a few hiccups when they redesigned the app and it messed up syncing for a while, it’s worked really well. I love how it all flows into Fitbit, Trendweight etc automatically.
https://smile.amazon.com/GreaterGoods-Conductive-Technology-Measurements-Monitoring/dp/B01IFYLARO
And yeah, sorry, 
not 
